| Pollinator type | Scientific and common name | Flower visited | Reference |
|---|---|---|---|
| fly | Aedes stimulans (Woodland Mosquito) | Maianthemum canadense (Canada Mayflower) | Graenicher, pp. 37-38, 1907; synonym names Culex stimulans and Unifolium canadense used in this ref. |
| fly | Aedes vexans (Inland Floodwater Mosquito) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym names Culex sylvestris and Eupatorium urticaefolium used in this ref. |
| fly | Aedes vexans (Inland Floodwater Mosquito) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym names Culex sylvestris and Solidago graminifolia used in this ref. |
| fly | Aedes vexans (Inland Floodwater Mosquito) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Culex sylvestris used in this ref. |
| fly | Allograpta sp. ( ) | Boechera laevigata (Smooth Rock Cress) | Robertson, p. 102, 1928; synonym name Arabis laevigata used in this ref. |
| fly | Allograpta sp. ( ) | Circaea lutetiana (Enchanter's Nightshade) | Robertson, pp. 146-147, 1928 |
| fly | Allograpta sp. ( ) | Dalea candida (White Prairie Clover) | Robertson, p. 133, 1928; synonym name Petalostemum candidum used in this ref. |
| fly | Allograpta sp. ( ) | Echinocystis lobata (Wild Cucumber) | Robertson, p. 106, 1928 |
| fly | Allograpta sp. ( ) | Ruellia humilis (Wild Petunia) | Robertson, p. 21, 1928; synonym name Ruellia ciliosa used in this ref. |
| fly | Allograpta sp. ( ) | Symphyotrichum pilosum (Awl Aster) | Robertson, pp. 50-53, 1928; synonym name Aster ericoides villosus used in this ref. |
| fly | Allograpta obliqua (Oblique Streaktail) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909 |
| fly | Allograpta obliqua (Oblique Streaktail) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym name Eupatorium urticaefolium used in this ref. |
| fly | Allograpta obliqua (Oblique Streaktail, Common Oblique Syrphid) | Apocynum cannabinum (Indian Hemp) | Robertson, pp. 70-71, 1891 |
| fly | Allograpta obliqua (Oblique Streaktail) | Circaea lutetiana (Enchanter's Nightshade) | Robertson, pp. 273-274, 1892 |
| fly | Allograpta obliqua (Oblique Streaktail) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909 |
| fly | Allograpta obliqua (Oblique Streaktail, Common Oblique Syrphid) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889 |
| fly | Allograpta obliqua (Oblique Streaktail) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894 |
| fly | Allograpta obliqua (Oblique Streaktail) | Conyza canadensis (Canadian Horseweed) | Graenicher, pp. 59-60, 1909; synonym name Erigeron canadensis used in this ref. |
| fly | Allograpta obliqua (Oblique Streaktail) | Euphorbia corollata (Flowering Spurge) | Robertson, pp. 77-75, 1896 |
| fly | Allograpta obliqua (Oblique Streaktail) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym name Solidago graminifolia used in this ref. |
| fly | Allograpta obliqua (Oblique Streaktail) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909 |
| fly | Allograpta obliqua (Oblique Streaktail) | Melilotus albus (White Sweet Clover) | Robertson, pp. 273-274, 1893; synonym name Melilotus alba used in this ref. |
| fly | Allograpta obliqua (Oblique Streaktail) | Mitella diphylla (Bishop's Cap, Mitrewort) | Graenicher, pp. 88-89, 1907 |
| fly | Allograpta obliqua (Oblique Streaktail) | Rudbeckia laciniata (Cut-leaf Coneflower) | Graenicher, pp. 64-65, 1909 |
| fly | Allograpta obliqua (Oblique Streaktail) | Sambucus canadensis (Common Elderberry) | Robertson, pp. 274-275, 1892 |
| fly | Allograpta obliqua (Oblique Streaktail) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Allograpta obliqua (Oblique Streaktail) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym name Aster paniculatus used in this ref. |
| fly | Allograpta obliqua (Oblique Streaktail) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym name Aster puniceus used in this ref. |
| fly | Allograpta obliqua (Oblique Streaktail) | Verbascum thapsus (Common Mullein) | Robertson, pp. 583-584, 1891 |
| fly | Anasimyia distincta (Short-spurred Swamp Fly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909; synonym name Helophilus distinctus used in this ref. |
| fly | Anthomyia sp. (a short-horned fly) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909 |
| fly | Anthomyia sp. ( ) | Apocynum cannabinum (Indian Hemp) | Robertson, pp. 70-71, 1891 |
| fly | Anthomyia sp. ( ) | Chamaecrista fasciculata (Partridge Pea) | Robertson, pp. 202-203, 1890; synonym name Cassia chamaecrista used in this ref. |
| fly | Anthomyia sp. (a short-horned fly) | Symphyotrichum lateriflorum (Calico Aster) | Graenicher, pp. 43-44, 1909; synonym name Aster lateriflorus used in this ref. |
| fly | Anthomyia sp. ( ) | Verbascum thapsus (Common Mullein) | Robertson, pp. 583-584, 1891 |
| fly | Anthomyia spp. ( ) | Ranunculus hispidus (Swamp Buttercup) | Robertson, pp. 105-107, 1894; synonym name Ranunculus septentrionalis used in this ref. |
| fly | Anthrax hypomelas (a bee fly) | Symphyotrichum pilosum (Awl Aster) | Robertson, pp. 50-53, 1928; synonym namesAnthrax hypomelas and Aster ericoides villosus used in this ref. |
| fly | Anthrax irroratus (Spotted Bee Fly) | Circaea lutetiana (Enchanter's Nightshade) | Robertson, pp. 146-147, 1928; synonym name Argyramoeba oedipus used in this ref. |
| fly | Archytas analis (Bristle Fly) | Dalea candida (White Prairie Clover) | Robertson, p. 133, 1928; synonym name Petalostemum candidum used in this ref. |
| fly | Archytas analis (Bristle Fly) | Maianthemum racemosum (False Solomon's Seal) | Graenicher, pp. 34-35, 1907; synonym name Vagnera racemose used in this ref. |
| fly | Archytas analis (a tachinid fly) | Maianthemum stellatum (Starry False Solomon's Seal, Star-flowered Solomon's Seal) | Graenicher, pp. 35-37, 1907; synonym name Vagnera stellata used in this ref. |
| fly | Archytas aterrimus (a tachinid fly) | Erechtites hieraciifolius (Pilewort) | Robertson, pp. 67-68, 1928; synonym names Archytas aterrima and Erechthites hieracifolia used in this ref. |
| fly | Archytas smaragdinus ( ) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894; synonym name Jurinia smaragdina used in this ref. |
| fly | Archytas smaragdinus ( ) | Melilotus albus (White Sweet Clover) | Robertson, pp. 273-274, 1893; synonym names Jurinia smaragdina and Melilotus alba used in this ref. |
| fly | Archytas smaragdinus ( ) | Persicaria pensylvanica (Pennsylvania Smartweed) | Robertson, p. 72, 1896; synonym names Jurinia smaragdina and Polygonum pennsylvanicum used in this ref. |
| fly | Arctoneura sp. ( ) | Euphorbia corollata (Flowering Spurge) | Robertson, pp. 77-75, 1896; synonym name Cyrtoneura used in this ref. |
| fly | Arctoneura sp. ( ) | Ranunculus hispidus (Swamp Buttercup) | Robertson, pp. 105-107, 1894; synonym names Cyrtoneura and Ranunculus septentrionalis used in this ref. |
| fly | Bombylius atriceps (Black-headed Bee Fly) | Maianthemum racemosum (False Solomon's Seal) | Graenicher, pp. 34-35, 1907; synonym name Vagnera racemose used in this ref. |
| fly | Bombylius major (Dark-Edged Bee-Fly, Major Bee Fly) | Caltha palustris (Marsh Marigold) | Graenicher, p. 93, 1910 |
| fly | Bombylius major (Major Bee Fly, Dark-Edged Bee-Fly) | Cardamine concatenata (Cutleaf Toothwort) | Robertson, pp. 298-299, 1889; synonym names Bombylius fratellus and Dentaria laciniata used in this ref. |
| fly | Bombylius major (Dark-Edged Bee-Fly, Major Bee Fly) | Cardamine concatenata (Cutleaf Toothwort) | Robertson, p. 104, 1928; synonym name Dentaria laciniata used in this ref. |
| fly | Bombylius major (Major Bee Fly, Dark-Edged Bee-Fly) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889; synonym name Bombylius fratellus used in this ref. |
| fly | Bombylius major (Dark-Edged Bee-Fly, Major Bee Fly) | Claytonia virginica (Virginia Spring Beauty) | Graenicher, p. 93, 1910 |
| fly | Bombylius major (Dark-Edged Bee-Fly, Major Bee Fly) | Dicentra cucullaria (Dutchman's Breeches) | Robertson, p. 108, 1928 |
| fly | Bombylius major (Dark-Edged Bee-Fly, Major Bee Fly) | Dicentra cucullaria (Dutchman's Breeches) | Robertson, p. 125, 1889; synonym name Bombylius fratellus used in this ref. |
| fly | Bombylius major (Dark-Edged Bee-Fly, Major Bee Fly) | Enemion biternatum (False Rue Anemone) | Graenicher, p. 93, 1910; synonym name Isopyrum biternatum used in this ref. |
| fly | Bombylius major (Major Bee Fly, Dark-Edged Bee-Fly) | Enemion biternatum (False Rue Anemone) | Robertson, pp. 173-175, 1892; synonym names Bombylius fratellus and Isopyrum biternatum used in this ref. |
| fly | Bombylius major (Major Bee Fly, Dark-Edged Bee-Fly) | Erythronium albidum (White Trout Lily) | Robertson, pp. 69-70, 1892; synonym name Bombylius fratellus used in this ref. |
| fly | Bombylius major (Dark-Edged Bee-Fly, Major Bee Fly) | Lithospermum canescens (Hoary Puccoon) | Robertson, pp. 144-146, 1895 |
| fly | Bombylius major (Dark-Edged Bee-Fly, Major Bee Fly) | Maianthemum stellatum (Starry False Solomon's Seal) | Robertson, pp. 269-270, 1896; synonym name Smilacina stellata used in this ref. |
| fly | Bombylius major (Dark-Edged Bee-Fly, Major Bee Fly) | Ranunculus hispidus (Swamp Buttercup) | Robertson, pp. 105-107, 1894; synonym names Bombylius fratellus and Ranunculus septentrionalis used in this ref. |
| fly | Bombylius major (Dark-Edged Bee-Fly, Major Bee Fly) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909 |
| fly | Bombylius major (Dark-Edged Bee-Fly, Major Bee Fly) | Sanguinaria canadensis (Bloodroot) | Graenicher, pp. 14-15, 1906 |
| fly | Bombylius major (Dark-Edged Bee-Fly, Major Bee Fly) | Viola pubescens (Smooth Yellow Violet) | Robertson, pp. 172-173, 1889; synonym name Bombylius fratellus used in this ref. |
| fly | Bombylius mexicanus (Mexican Bee Fly) | Maianthemum racemosum (False Solomon's Seal) | Graenicher, p. 92, 1910; synonym name Bombylius fulvibasis used in this ref. |
| fly | Bombylius pulchellus (Beautiful Bee Fly) | Ranunculus hispidus (Swamp Buttercup) | Robertson, pp. 105-107, 1894; synonym name Ranunculus septentrionalis used in this ref. |
| fly | Brachypalpus oarus (Eastern Catkin Fly) | Erythronium albidum (White Trout Lily) | Robertson, pp. 69-70, 1892; synonym name Brachypalpus frontosus used in this ref. |
| fly | Calliphora vicina (a blow fly) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894; synonym name Calliphora erythrocephala used in this ref. |
| fly | Calliphora vicina (a blow fly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym names Calliphora erythrocephala and Solidago graminifolia used in this ref. |
| fly | Calliphora vicina (a blow fly) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym names Calliphora erythrocephala and Aster paniculatus used in this ref. |
| fly | Calliphora vicina (a blow fly) | Symphyotrichum lateriflorum (Calico Aster) | Graenicher, pp. 43-44, 1909; synonym names Calliphora erythrocephala and Aster lateriflorus used in this ref. |
| fly | Calliphora vicina (a blow fly) | Symphyotrichum novae-angliae (New England Aster) | Graenicher, pp. 50-51, 1909; synonym names Calliphora erythrocephala and Aster novae-angliae used in this ref. |
| fly | Calliphora vicina (a blow fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym names Calliphora erythrocephala and Aster puniceus used in this ref. |
| fly | Calythea pratincola (a short-horned fly) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909; synonym name Anthomyia pratincola used in this ref.] |
| fly | Calythea pratincola (a short-horned fly) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym names Anthomyia pratincola and Aster macrophyllus used in this ref. |
| fly | Calythea pratincola (a short-horned fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Anthomyia pratincola used in this ref. |
| fly | Chaetogaedia analis ( ) | Persicaria pensylvanica (Pennsylvania Smartweed) | Robertson, p. 72, 1896; synonym names Frontina acroglossoides and Polygonum pennsylvanicum used in this ref. |
| fly | Chalcosyrphus nemorum (Dusky-banded Leafwalker, Dusky-banded Forest Fly) | Enemion biternatum (False Rue Anemone) | Robertson, pp. 173-175, 1892; synonym names Xylota fraudulosa and Isopyrum biternatum used in this ref. |
| fly | Cheilosia capillata (Scar-horned Blacklet) | Caulophyllum thalictroides (Blue Cohosh) | Robertson, pp. 154-155, 1896; synonym name Chilosia capillata used in this ref. |
| fly | Cheilosia capillata (Scar-horned Blacklet) | Enemion biternatum (False Rue Anemone) | Robertson, pp. 173-175, 1892; synonym names Chilosia capillata and Isopyrum biternatum used in this ref. |
| fly | Cheilosia capillata (Scar-horned Blacklet) | Ranunculus hispidus (Swamp Buttercup) | Robertson, pp. 105-107, 1894; synonym names Chilosia capillata and Ranunculus septentrionalis used in this ref. |
| fly | Cheilosia punctulata (Obscure Blacklet) | Symphyotrichum pilosum (Awl Aster) | Robertson, pp. 50-53, 1928; synonym names Chilosia punctulata and Aster ericoides villosus used in this ref. |
| fly | Chetogena edwardsii ( ) | Melilotus albus (White Sweet Clover) | Robertson, pp. 273-274, 1893; synonym names Phorocera edwardsii and Melilotus alba used in this ref. |
| fly | Compsomyia sp. ( ) | Dalea candida (White Prairie Clover) | Robertson, p. 133, 1928; synonym name Petalostemum candidum used in this ref. |
| fly | Copestylum vesicularium (Iridescent Bromeliad Fly) | Echinacea purpurea (Eastern Purple Coneflower) | Robertson, p. 59, 1928; synonym names Volucella vesiculosa and Brauneria purpurea used in this ref. |
| fly | Cylindromyia euchenor ( ) | Melilotus albus (White Sweet Clover) | Robertson, pp. 273-274, 1893; synonym names Ocyptera euchenor and Melilotus alba used in this ref. |
| fly | Cylindromyia interrupta ( ) | Geum canadense (White Avens) | Robertson, p. 169, 1928; synonym name Ocyptera dosiades used in this ref. |
| fly | Cynomya mortuorum (Bluebottle Blow Fly) | Rhus aromatica (Fragrant Sumac) | Robertson, pp. 161-163, 1896; synonym name Cynomyia mortuorum and both Rhus canadensis which is a synonym, and the correct pl |
| fly | Dictya pictipes (a marsh fly) | Rhus aromatica (Fragrant Sumac) | Robertson, pp. 161-163, 1896; synonym name Tetanocera pictipes and both Rhus canadensis which is a synonym, and the correct p |
| fly | Dilophus serotinus (a march fly) | Symphyotrichum pilosum (Awl Aster) | Robertson, pp. 50-53, 1928; synonym name Aster ericoides villosus used in this ref. |
| fly | Dilophus stigmaterus (a march fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909 |
| fly | Dolichomyia sp. ( ) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909 |
| fly | Drosophila sp. (Fruit Fly) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889 |
| fly | Drymeia sp. (a muscid fly) | Maianthemum racemosum (False Solomon's Seal) | Graenicher, pp. 34-35, 1907; synonym name Vagnera racemose used in this ref. |
| fly | Dynatosoma coquilletti ( ) | Caulophyllum thalictroides (Blue Cohosh) | Robertson, pp. 154-155, 1896; synonym name Dynatosoma thoracica used in this ref. |
| fly | Empis sp. (a dance fly) | Apocynum cannabinum (Indian Hemp) | Robertson, pp. 70-71, 1891 |
| fly | Empis sp. ( ) | Enemion biternatum (False Rue Anemone) | Robertson, pp. 173-175, 1892; synonym name Isopyrum biternatum used in this ref. |
| fly | Empis sp. ( ) | Melilotus albus (White Sweet Clover) | Robertson, pp. 273-274, 1893; synonym name Melilotus alba used in this ref. |
| fly | Empis sp. (a dance fly) | Staphylea trifolia (American bladdernut) | Robertson, pp. 302-303, 1889 |
| fly | Empis spp. ( ) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889 |
| fly | Empis clausa (a dance fly) | Verbena urticifolia (White Vervain) | Robertson, p. 68, 1892 |
| fly | Empis humilis (a dance fly) | Cardamine concatenata (Cutleaf Toothwort) | Robertson, p. 104, 1928; synonym name Dentaria laciniata used in this ref. |
| fly | Empis humilis (a dance fly) | Maianthemum stellatum (Starry False Solomon's Seal) | Robertson, pp. 269-270, 1896; synonym name Smilacina stellata used in this ref. |
| fly | Empis labiata (a dance fly) | Geranium maculatum (Wild Geranium) | Robertson, pp. 299-300, 1889 |
| fly | Empis nuda ( ) | Packera aurea (Golden Ragwort) | Graenicher, pp. 73-74, 1909; synonym name Senecio aureus used in this ref. |
| fly | Eoseristalis anthophorina ( ) | Symphyotrichum pilosum (Awl Aster) | Robertson, pp. 50-53, 1928; synonym names Eristalis bastardi and Aster ericoides villosus used in this ref. |
| fly | Eoseristalis dimidiata (Black-shouldered Drone Fly) | Symphyotrichum pilosum (Awl Aster) | Robertson, pp. 50-53, 1928; synonym names Eristalis dimidiatus and Aster ericoides villosus used in this ref. |
| fly | Epistrophe emarginata (Slender Smoothtail) | Cirsium vulgare (Bull Thistle) | Graenicher, pp. 75-76, 1909; synonym names Xanthogramma divisa and Cirsium lanceolatum used in this ref. |
| fly | Eristalinus aeneus (Common Lagoon Fly, Syrphid Fly) | Persicaria pensylvanica (Pennsylvania Smartweed) | Robertson, p. 72, 1896; synonym names Eristalis aeneus and Polygonum pennsylvanicum used in this ref. |
| fly | Eristalinus aeneus (Common Lagoon Fly, Syrphid Fly) | Symphyotrichum pilosum (Awl Aster) | Robertson, pp. 50-53, 1928; synonym names Eristalis aeneus and Aster ericoides villosus used in this ref. |
| fly | Eristalis aenea (Common Lagoon Fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909; synonym name E. aeneus (masculine ending) used in this ref. |
| fly | Eristalis aenea (Common Lagoon Fly) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym names E. aeneus (masculine ending) and Aster macrophyllus used in this ref. |
| fly | Eristalis aenea (Common Lagoon Fly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym names E. aeneus and Solidago graminifolia used in this ref. |
| fly | Eristalis aenea (Common Lagoon Fly) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym names E. aeneus and Aster drummondii used in this ref. |
| fly | Eristalis aenea (Common Lagoon Fly) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym names E. aeneus and Aster laevis used in this ref. |
| fly | Eristalis aenea (Common Lagoon Fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym names E. aeneus and Aster puniceus used in this ref. |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym names E. dimidiatus (masculine ending) and Eupatorium urticaefolium used in this ref. |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889; synonym name Eristalis dimidiatus used in this ref. The name Eoseristalis dimidiata is also in |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Enemion biternatum (False Rue Anemone) | Robertson, pp. 173-175, 1892; synonym names Eristalis dimidiatus and Isopyrum biternatum used in this ref. The name Cheilo |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909; synonym name E. dimidiatus used in this ref. |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym names E. dimidiatus (masculine ending) and Aster macrophyllus used in this ref. |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym names E. dimidiatus and Solidago graminifolia used in this ref. |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909; synonym name E. dimidiatus used in this ref. |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Maianthemum stellatum (Starry False Solomon's Seal, Star-flowered Solomon's Seal) | Graenicher, pp. 35-37, 1907; synonym names Eristalis dimidiatus and Vagnera stellata used in this ref. |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Packera aurea (Golden Ragwort) | Graenicher, pp. 73-74, 1909; synonym names E. dimidiatus and Senecio aureus used in this ref. |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Rhus aromatica (Fragrant Sumac) | Robertson, pp. 161-163, 1896; synonym name Eristalis dimidiatus and both Rhus canadensis which is a synonym, and the correct |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909; synonym name E. dimidiatus used in this ref. |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Rudbeckia laciniata (Cut-leaf Coneflower) | Graenicher, pp. 64-65, 1909; synonym name E. dimidiatus used in this ref. |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Sambucus canadensis (Common Elderberry) | Robertson, pp. 274-275, 1892; synonym name Eristalis dimidiatus used in this ref. |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name E. dimidiatus used in this ref. |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym names E. dimidiatus and Aster drummondii used in this ref. |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym names E. dimidiatus and Aster laevis used in this ref. |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym names E. dimidiatus (masculine ending) and Aster paniculatus used in this ref. |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Symphyotrichum novae-angliae (New England Aster) | Graenicher, pp. 50-51, 1909; synonym names E. dimidiatus and Aster novae-angliae used in this ref. |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym names E. dimidiatus and Aster puniceus used in this ref. |
| fly | Eristalis dimidiata (Black-shouldered Drone Fly) | Tanacetum vulgare (Common Tansy) | Graenicher, p. 72, 1909; synonym name E. dimidiatus used in this ref. |
| fly | Eristalis flavipes (Orange-legged Drone Fly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909 |
| fly | Eristalis flavipes (Orange-legged Drone Fly) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym name Aster macrophyllus used in this ref. |
| fly | Eristalis flavipes (Orange-legged Drone Fly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym name Solidago graminifolia used in this ref. |
| fly | Eristalis flavipes (Orange-legged Drone Fly) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909 |
| fly | Eristalis flavipes (Orange-legged Drone Fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Eristalis flavipes (Orange-legged Drone Fly) | Staphylea trifolia (American bladdernut) | Robertson, pp. 302-303, 1889. The name Eoseristalis flavipes is also in use. |
| fly | Eristalis flavipes (Orange-legged Drone Fly) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym name Aster drummondii used in this ref. |
| fly | Eristalis flavipes (Orange-legged Drone Fly) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym name Aster laevis used in this ref. |
| fly | Eristalis flavipes (Orange-legged Drone Fly) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym name Aster paniculatus used in this ref. |
| fly | Eristalis flavipes (Orange-legged Drone Fly) | Symphyotrichum novae-angliae (New England Aster) | Graenicher, pp. 50-51, 1909; synonym name Aster novae-angliae used in this ref. |
| fly | Eristalis flavipes (Orange-legged Drone Fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym name Aster puniceus used in this ref. |
| fly | Eristalis stipator (Yellow-shouldered Drone Fly) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889; synonym name Eristalis latifrons used in this ref. The name Eoseristalis stipator is also in us |
| fly | Eristalis tenax (Common Drone fly) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909 |
| fly | Eristalis tenax (Common Drone fly) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym name Eupatorium urticaefolium used in this ref. |
| fly | Eristalis tenax (Common Drone fly) | Arctium minus (Common Burdock) | Robertson, pp. 48-49, 1928 |
| fly | Eristalis tenax (Common Drone fly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909 |
| fly | Eristalis tenax (Common Drone fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909 |
| fly | Eristalis tenax (Common Drone fly) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym name Aster macrophyllus used in this ref. |
| fly | Eristalis tenax (Common Drone fly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym name Solidago graminifolia used in this ref. |
| fly | Eristalis tenax (Common Drone fly) | Helenium autumnale (Common Sneezeweed) | Graenicher, pp. 68-69, 1909 |
| fly | Eristalis tenax (Common Drone fly) | Helianthus giganteus (Giant Sunflower) | Graenicher, p. 68, 1909 |
| fly | Eristalis tenax (Common Drone fly) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909 |
| fly | Eristalis tenax (Common Drone fly) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym name Chrysanthemum leucanthemum used in this ref. |
| fly | Eristalis tenax (Common Drone fly) | Persicaria pensylvanica (Pennsylvania Smartweed) | Robertson, p. 72, 1896; synonym name Polygonum pennsylvanicum used in this ref. |
| fly | Eristalis tenax (Common Drone fly) | Ratibida pinnata (Gray-headed Coneflower) | Graenicher, pp. 65-66, 1909; synonym name Lepachys pinnata used in this ref. |
| fly | Eristalis tenax (Common Drone fly) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909 |
| fly | Eristalis tenax (Common Drone fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Eristalis tenax (Common Drone fly) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym name Aster drummondii used in this ref. |
| fly | Eristalis tenax (Common Drone fly) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym name Aster laevis used in this ref. |
| fly | Eristalis tenax (Common Drone fly) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym name Aster paniculatus used in this ref. |
| fly | Eristalis tenax (Common Drone fly) | Symphyotrichum novae-angliae (New England Aster) | Graenicher, pp. 50-51, 1909; synonym name Aster novae-angliae used in this ref. |
| fly | Eristalis tenax (Common Drone fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym name Aster puniceus used in this ref. |
| fly | Eristalis tenax (Common Drone Fly, Drone Fly) | Verbena stricta (Hoary Vervain) | Robertson, p. 67, 1892 |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909 |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym name Eupatorium urticaefolium used in this ref. |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909 |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894 |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Erigeron annuus (Annual Fleabane) | Graenicher, pp. 60-61, 1909 |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 50-51, 1909; synonym name Aster novae-angliae used in this ref. |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym name Aster macrophyllus used in this ref. |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym name Solidago graminifolia used in this ref. |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Helenium autumnale (Common Sneezeweed) | Graenicher, pp. 68-69, 1909 |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Helianthus giganteus (Giant Sunflower) | Graenicher, p. 68, 1909 |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909 |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Heliopsis helianthoides (Smooth Oxeye) | Graenicher, pp. 63-64, 1909; synonym name Heliopsis scabra used in this ref. |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym name Chrysanthemum leucanthemum used in this ref. |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Packera aurea (Golden Ragwort) | Graenicher, pp. 73-74, 1909; synonym name Senecio aureus used in this ref. |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Ratibida pinnata (Gray-headed Coneflower) | Graenicher, pp. 65-66, 1909; synonym name Lepachys pinnata used in this ref. |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909 |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Rudbeckia laciniata (Cut-leaf Coneflower) | Graenicher, pp. 64-65, 1909 |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym name Aster drummondii used in this ref. |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym name Aster laevis used in this ref. |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym name Aster paniculatus used in this ref. |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Symphyotrichum novae-angliae (New England Aster) | Graenicher, pp. 50-51, 1909; synonym name Aster novae-angliae used in this ref. |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym name Aster puniceus used in this ref. |
| fly | Eristalis transversus (Transverse-banded Drone Fly) | Veronicastrum virginicum (Culver's Root) | Robertson, pp. 592-593, 1891; synonym name Veronica virginica used in this ref. |
| fly | Eristalis vinetorum ( ) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Euaresta bella (a fruit fly) | Conyza canadensis (Canadian Horseweed) | Graenicher, pp. 59-60, 1909; synonym name Erigeron canadensis used in this ref. |
| fly | Euaresta bella (a fruit fly) | Erigeron annuus (Annual Fleabane) | Graenicher, pp. 60-61, 1909 |
| fly | Euaresta bella (a fruit fly) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym name Chrysanthemum leucanthemum used in this ref. |
| fly | Euaresta bella (a fruit fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Eupeodes americanus (Long-tailed Aphideater) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909; synonym name Syrphus americanus used in this ref. |
| fly | Eupeodes americanus (Long-tailed Aphideater) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909; synonym name Syrphus americanus used in this ref. |
| fly | Eupeodes americanus (Long-tailed Aphideater) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889; synonym name Syrphus americanus used in this ref. |
| fly | Eupeodes americanus (American Hover Fly) | Echinocystis lobata (Wild Cucumber) | Robertson, p. 106, 1928; synonym name Syrphus americanus used in this ref. |
| fly | Eupeodes americanus (Long-tailed Aphideater) | Enemion biternatum (False Rue Anemone) | Robertson, pp. 173-175, 1892; synonym names Syrphus americanus and Isopyrum biternatum used in this ref. |
| fly | Eupeodes americanus (Long-tailed Aphideater) | Erigeron annuus (Annual Fleabane) | Graenicher, pp. 60-61, 1909; synonym name Syrphus americanus used in this ref. |
| fly | Eupeodes americanus (Long-tailed Aphideater) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym names Syrphus americanus and Aster macrophyllus used in this ref. |
| fly | Eupeodes americanus (Long-tailed Aphideater) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym names Syrphus americanus and Chrysanthemum leucanthemum used in this ref. |
| fly | Eupeodes americanus (Long-tailed Aphideater) | Melilotus albus (White Sweet Clover) | Robertson, pp. 273-274, 1893; synonym names Syrphus americanus and Melilotus alba used in this ref. |
| fly | Eupeodes americanus (American Hover Fly) | Persicaria pensylvanica (Pennsylvania Smartweed) | Robertson, p. 72, 1896; synonym names Syrphus americanus and Polygonum pennsylvanicum used in this ref. |
| fly | Eupeodes americanus (American Hover Fly) | Ranunculus hispidus (Swamp Buttercup) | Robertson, pp. 105-107, 1894; synonym names Syrphus americanus and Ranunculus septentrionalis used in this ref. |
| fly | Eupeodes americanus (American Hover Fly) | Rhus aromatica (Fragrant Sumac) | Robertson, pp. 161-163, 1896; synonym name Syrphus americanus and both Rhus canadensis which is a synonym, and the correct pl |
| fly | Eupeodes americanus (Long-tailed Aphideater) | Ribes missouriense (Missouri Gooseberry) | Graenicher, pp. 93-95, 1907; synonym names Syrphus americanus and Ribes gracile used in this ref. |
| fly | Eupeodes americanus (Long-tailed Aphideater) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909; synonym name Syrphus americanus used in this ref. |
| fly | Eupeodes americanus (American Hover Fly) | Sanguinaria canadensis (Bloodroot) | Graenicher, pp. 14-15, 1906; synonym name Syrphus americanus used in this ref. |
| fly | Eupeodes americanus (American Hover Fly) | Sanguinaria canadensis (Bloodroot) | Graenicher, pp. 14-15, 1906; synonym name Syrphus americanus used in this ref. |
| fly | Eupeodes americanus (Long-tailed Aphideater) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym names Syrphus americanus and Aster paniculatus used in this ref. |
| fly | Eupeodes americanus (American Hover Fly) | Verbascum thapsus (Common Mullein) | Robertson, pp. 583-584, 1891; synonym name Syrphus americanus used in this ref. |
| fly | Eupeodes nielseni (a hover fly) | Ranunculus hispidus (Swamp Buttercup) | Robertson, pp. 105-107, 1894; synonym names Syrphus arcuatus and Ranunculus septentrionalis used in this ref. |
| fly | Eusiphona mira (a freeloader fly) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909 |
| fly | Eusiphona mira (a freeloader fly) | Heliopsis helianthoides (Smooth Oxeye) | Graenicher, pp. 63-64, 1909; synonym name Heliopsis scabra used in this ref. |
| fly | Eusiphona mira (a freeloader fly) | Ratibida pinnata (Gray-headed Coneflower) | Graenicher, pp. 65-66, 1909; synonym name Lepachys pinnata used in this ref. |
| fly | Eusiphona mira (a freeloader fly) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909 |
| fly | Eusiphona mira (a freeloader fly) | Rudbeckia laciniata (Cut-leaf Coneflower) | Graenicher, pp. 64-65, 1909 |
| fly | Eusiphona mira (a freeloader fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Exoprosopa decora (Adorned Bee Fly) | Bidens frondosa (Devil's Beggarticks) | Robertson, p. 59, 1928 |
| fly | Exoprosopa decora (Adorned Bee Fly) | Echinacea purpurea (Eastern Purple Coneflower) | Robertson, p. 59, 1928; synonym name Brauneria purpurea used in this ref. |
| fly | Exoprosopa decora (Adorned Bee Fly) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909 |
| fly | Exoprosopa decora (Adorned Bee Fly) | Heliopsis helianthoides (Smooth Oxeye) | Graenicher, pp. 63-64, 1909; synonym name Heliopsis scabra used in this ref. |
| fly | Exoprosopa decora (Adorned Bee Fly) | Rudbeckia laciniata (Cut-leaf Coneflower) | Graenicher, pp. 64-65, 1909 |
| fly | Exoprosopa decora (Adorned Bee Fly) | Symphyotrichum novae-angliae (New England Aster) | Graenicher, pp. 50-51, 1909; synonym name Aster novae-angliae used in this ref. |
| fly | Exoprosopa decora (Adorned Bee Fly) | Symphyotrichum pilosum (Awl Aster) | Robertson, pp. 50-53, 1928; synonym name Aster ericoides villosus used in this ref. |
| fly | Exoprosopa decora (Adorned Bee Fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym name Aster puniceus used in this ref. |
| fly | Exoprosopa decora (Adorned Bee Fly) | Verbena hastata (Blue Vervain) | Graenicher, p. 94, 1910 |
| fly | Exoprosopa fasciata (Banded Bee Fly) | Arctium minus (Common Burdock) | Robertson, pp. 48-49, 1928 |
| fly | Exoprosopa fasciata (Banded Bee Fly) | Cirsium discolor (Field Thistle) | Robertson, pp. 64-65, 1928 |
| fly | Exoprosopa fasciata (Banded Bee Fly) | Echinacea purpurea (Eastern Purple Coneflower) | Robertson, p. 59, 1928; synonym name Brauneria purpurea used in this ref. |
| fly | Exoprosopa fasciata (Banded Bee Fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909 |
| fly | Exoprosopa fasciata (Banded Bee Fly) | Lythrum salicaria (Purple Loosestrife) | Robertson, p. 179, 1892. The author employs the name L. alatum, which is a synonym for L. acutangulum. The plant described ap |
| fly | Exoprosopa fasciata (Banded Bee Fly) | Symphyotrichum pilosum (Awl Aster) | Robertson, pp. 50-53, 1928; synonym name Aster ericoides villosus used in this ref. |
| fly | Exoprosopa fasciata (Banded Bee Fly) | Verbena hastata (Blue Vervain) | Robertson, pp. 67-68, 1892 |
| fly | Exoprosopa fasciata (Banded Bee Fly) | Verbena hastata (Blue Vervain) | Graenicher, p. 94, 1910 |
| fly | Exoprosopa fasciata (Banded Bee Fly) | Verbena stricta (Hoary Vervain) | Robertson, p. 67, 1892 |
| fly | Exoprosopa fasciata (Banded Bee Fly) | Veronicastrum virginicum (Culver's Root) | Robertson, pp. 592-593, 1891; synonym name Veronica virginica used in this ref. |
| fly | Exoprosopa fascipennis (Band-winged Bee Fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909 |
| fly | Exoprosopa fascipennis (Band-winged Bee Fly) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909 |
| fly | Exoprosopa fascipennis (Band-winged Bee Fly) | Lythrum salicaria (Purple Loosestrife) | Robertson, p. 179, 1892. The author employs the name L. alatum, which is a synonym for L. acutangulum. The plant described ap |
| fly | Exoprosopa fascipennis (Band-winged Bee Fly) | Rudbeckia laciniata (Cut-leaf Coneflower) | Graenicher, pp. 64-65, 1909 |
| fly | Exoprosopa fascipennis (Band-winged Bee Fly) | Symphyotrichum pilosum (Awl Aster) | Robertson, pp. 50-53, 1928; synonym name Aster ericoides villosus used in this ref. |
| fly | Exorista sp. ( ) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894 |
| fly | Fannia sp. ( ) | Ranunculus hispidus (Swamp Buttercup) | Robertson, pp. 105-107, 1894; synonym names Homalomyia and Ranunculus septentrionalis used in this ref. |
| fly | Geranomyia sp. (a crane fly) | Symphyotrichum pilosum (Awl Aster) | Robertson, pp. 50-53, 1928; synonym name Aster ericoides villosus used in this ref. |
| fly | Geron calvus (Bald Bee Fly) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 96, 1910 |
| fly | Geron rufipes (a bee fly) | Echinacea purpurea (Eastern Purple Coneflower) | Robertson, p. 59, 1928; synonym name Brauneria purpurea used in this ref. |
| fly | Geron rufipes (a bee fly) | Symphyotrichum pilosum (Awl Aster) | Robertson, pp. 50-53, 1928; synonym name Aster ericoides villosus used in this ref. |
| fly | Gnadochaeta globosa (a bristle fly) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894; synonym name Loewia globosa used in this ref. |
| fly | Gonia capitata (a tachinid fly) | Maianthemum stellatum (Starry False Solomon's Seal, Star-flowered Solomon's Seal) | Graenicher, pp. 35-37, 1907; synonym name Vagnera stellata used in this ref. |
| fly | Gonia frontosa (a bristle fly) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889 |
| fly | Gonia frontosa (a bristle fly) | Enemion biternatum (False Rue Anemone) | Robertson, pp. 173-175, 1892; synonym name Isopyrum biternatum used in this ref. |
| fly | Gonia frontosa (a bristle fly) | Rhus aromatica (Fragrant Sumac) | Robertson, pp. 161-163, 1896; both Rhus canadensis which is a synonym, and the correct plant name are used in this ref. |
| fly | Gonia frontosa (a bristle fly) | Viola pubescens (Smooth Yellow Violet) | Robertson, pp. 172-173, 1889 |
| fly | Graphomya sp. ( ) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894; synonym name Graphomyia used in this ref. |
| fly | Graphomya maculata ( ) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909; synonym name Graphomyia maculata used in this ref. |
| fly | Graphomya maculata ( ) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym names Graphomyia maculata and Eupatorium urticaefolium used in this ref. |
| fly | Graphomya maculata ( ) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909; synonym name Graphomyia maculata used in this ref. |
| fly | Graphomya maculata ( ) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym names Graphomyia maculata and Aster macrophyllus used in this ref. |
| fly | Graphomya maculata ( ) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym names Graphomyia maculata and Solidago graminifolia used in this ref. |
| fly | Graphomya maculata ( ) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym names Graphomyia maculata and Chrysanthemum leucanthemum used in this ref. |
| fly | Graphomya maculata ( ) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Graphomyia maculata used in this ref. |
| fly | Graphomya maculata ( ) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym names Graphomyia maculata and Aster drummondii used in this ref. |
| fly | Graphomya maculata ( ) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym names Graphomyia maculata and Aster paniculatus used in this ref. |
| fly | Graphomya maculata ( ) | Symphyotrichum lateriflorum (Calico Aster) | Graenicher, pp. 43-44, 1909; synonym names Graphomyia maculata and Aster lateriflorus used in this ref. |
| fly | Graphomya maculata ( ) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym names Graphomyia maculata and Aster puniceus used in this ref. |
| fly | Graphomyia sp. ( ) | Persicaria pensylvanica (Pennsylvania Smartweed) | Robertson, p. 72, 1896; synonym name Polygonum pennsylvanicum used in this ref. |
| fly | Gymnoclytia immaculata ( ) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909; synonym name Cistogaster immaculata used in this ref. |
| fly | Gymnoclytia immaculata ( ) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym names Cistogaster immaculata and Eupatorium urticaefolium used in this ref. |
| fly | Gymnoclytia immaculata ( ) | Erigeron annuus (Annual Fleabane) | Graenicher, pp. 60-61, 1909; synonym name Cistogaster immaculata used in this ref. |
| fly | Gymnoclytia immaculata ( ) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909; synonym name Cistogaster immaculata used in this ref. |
| fly | Gymnoclytia immaculata (a tachinid fly) | Euphorbia corollata (Flowering Spurge) | Robertson, pp. 77-75, 1896; synonym name Cistogaster immaculata used in this ref. |
| fly | Gymnoclytia immaculata ( ) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym names Cistogaster immaculata and Aster macrophyllus used in this ref. |
| fly | Gymnoclytia immaculata (a tachinid fly) | Maianthemum stellatum (Starry False Solomon's Seal, Star-flowered Solomon's Seal) | Graenicher, pp. 35-37, 1907; synonym names Cistogaster immaculata and Vagnera stellata used in this ref. |
| fly | Gymnoclytia immaculata (a tachinid fly) | Persicaria pensylvanica (Pennsylvania Smartweed) | Robertson, p. 72, 1896; synonym names Cistogaster immaculata and Polygonum pennsylvanicum used in this ref. |
| fly | Gymnoclytia immaculata ( ) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Cistogaster immaculata used in this ref. |
| fly | Gymnoclytia immaculata ( ) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym names Cistogaster immaculata and Aster paniculatus used in this ref. |
| fly | Gymnoclytia immaculata ( ) | Symphyotrichum lateriflorum (Calico Aster) | Graenicher, pp. 43-44, 1909; synonym names Cistogaster immaculata and Aster lateriflorus used in this ref. |
| fly | Gymnoclytia occidua ( ) | Apocynum cannabinum (Indian Hemp) | Robertson, pp. 70-71, 1891; synonym name Cistogaster divisa used in this ref. |
| fly | Gymnoclytia occidua ( ) | Asclepias incarnata (Swamp Milkweed) | Robertson, pp. 571-572, 1891; synonym name Cistogaster divisa used in this ref. |
| fly | Gymnosoma sp. ( ) | Descurainia pinnata (Tansy Mustard) | Robertson, p. 105, 1928; synonym name Sisymbrium canescens used in this ref. |
| fly | Gymnosoma fuliginosum ( ) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym names Gymnosoma fuliginosa and Eupatorium urticaefolium used in this ref. |
| fly | Gymnosoma fuliginosum ( ) | Erigeron annuus (Annual Fleabane) | Graenicher, pp. 60-61, 1909; synonym name Gymnosoma fuliginosa used in this ref. |
| fly | Gymnosoma fuliginosum ( ) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909; synonym name Gymnosoma fuliginosa used in this ref. |
| fly | Gymnosoma fuliginosum ( ) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Gymnosoma fuliginosa used in this ref. |
| fly | Gymnosoma fuliginosum ( ) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym names Gymnosoma fuliginosa and Aster paniculatus used in this ref. |
| fly | Hedriodiscus binotatus (a soldier fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909; synonym name ; synonym name Odontomyia binotata used in this ref. |
| fly | Hedriodiscus binotatus (a soldier fly) | Ratibida pinnata (Gray-headed Coneflower) | Graenicher, pp. 65-66, 1909; synonym names Odontomyia binotata and Lepachys pinnata used in this ref. |
| fly | Hedriodiscus binotatus (a soldier fly) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909; synonym name Odontomyia binotata used in this ref. |
| fly | Hedriodiscus binotatus (a soldier fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Odontomyia binotata used in this ref. |
| fly | Hedriodiscus trivittatus (a soldier fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Odontomyia trivittata used in this ref. |
| fly | Hedriodiscus vertebratus (a soldier fly) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909; Odontomyia vertebrata used in this ref. |
| fly | Hedriodiscus vertebratus (a soldier fly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909; Odontomyia vertebrata used in this ref. |
| fly | Hedriodiscus vertebratus (a soldier fly) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909; Odontomyia vertebrata used in this ref. |
| fly | Hedriodiscus vertebratus (a soldier fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; Odontomyia vertebrata used in this ref. |
| fly | Helophilus fasciatus (Narrow-headed Marsh Fly) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym names Helophilus similis and Eupatorium urticaefolium used in this ref. |
| fly | Helophilus fasciatus (Narrow-headed Marsh Fly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909; synonym name Helophilus similis used in this ref. |
| fly | Helophilus fasciatus (Narrow-Headed Marsh Fly) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889; synonym name Helophilus similis used in this ref. The name Helophilus pendulus is also in use for t |
| fly | Helophilus fasciatus (Narrow-headed Marsh Fly) | Enemion biternatum (False Rue Anemone) | Robertson, pp. 173-175, 1892; synonym names Helophilus similis and Isopyrum biternatum used in this ref. |
| fly | Helophilus fasciatus (Narrow-headed Marsh Fly) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym names Helophilus similis and Aster macrophyllus used in this ref. |
| fly | Helophilus fasciatus (Narrow-headed Marsh Fly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym names Helophilus similis and Solidago graminifolia used in this ref. |
| fly | Helophilus fasciatus (Narrow-headed Marsh Fly) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym names Helophilus similis and Chrysanthemum leucanthemum used in this ref. |
| fly | Helophilus fasciatus (Narrow-headed Marsh Fly) | Maianthemum stellatum (Starry False Solomon's Seal, Star-flowered Solomon's Seal) | Graenicher, pp. 35-37, 1907; synonym names Helophilus similis and Vagnera stellata used in this ref. |
| fly | Helophilus fasciatus (Narrow-headed Marsh Fly) | Packera aurea (Golden Ragwort) | Graenicher, pp. 73-74, 1909; synonym names Helophilus similis and Senecio aureus used in this ref. |
| fly | Helophilus fasciatus (Narrow-headed Marsh Fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Helophilus similis used in this ref. |
| fly | Helophilus fasciatus (Narrow-headed Marsh Fly) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym names Helophilus similis and Aster drummondii used in this ref. |
| fly | Helophilus fasciatus (Narrow-headed Marsh Fly) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym names Helophilus similis and Aster laevis used in this ref. |
| fly | Helophilus fasciatus (Narrow-headed Marsh Fly) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym names Helophilus similis and Aster paniculatus used in this ref. |
| fly | Helophilus fasciatus (Narrow-headed Marsh Fly) | Symphyotrichum novae-angliae (New England Aster) | Graenicher, pp. 50-51, 1909; synonym names Helophilus similis and Aster novae-angliae used in this ref. |
| fly | Helophilus fasciatus (Narrow-headed Marsh Fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym names Helophilus similis and Aster puniceus used in this ref. |
| fly | Helophilus latifrons (Broad-headed Marsh Fly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym name Solidago graminifolia used in this ref. |
| fly | Helophilus latifrons (Broad-headed Marsh Fly) | Geranium maculatum (Wild Geranium) | Robertson, pp. 299-300, 1889 |
| fly | Helophilus latifrons (Broad-headed Marsh Fly) | Lythrum salicaria (Purple Loosestrife) | Robertson, p. 179, 1892. The author employs the name L. alatum, which is a synonym for L. acutangulum. The plant described ap |
| fly | Helophilus latifrons (Broad-headed Marsh Fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Helophilus latifrons (Broad-headed Marsh Fly) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym name Aster laevis used in this ref. |
| fly | Helophilus latifrons (Broad-headed Marsh Fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym name Aster puniceus used in this ref. |
| fly | Hemipenthes sinuosa (Sinuous Bee Fly) | Circaea lutetiana (Enchanter's Nightshade) | Robertson, pp. 273-274, 1892 |
| fly | Hemipenthes sinuosa (Sinuous Bee Fly) | Sambucus canadensis (Common Elderberry) | Robertson, pp. 274-275, 1892 |
| fly | Hemipenthes sinuosus (Sinuous Bee Fly) | Circaea lutetiana (Enchanter's Nightshade) | Robertson, pp. 146-147, 1928; synonym name Anthrax sinuosa used in this ref. |
| fly | Hemipenthes sinuosus (Sinuous Bee Fly) | Monarda fistulosa (Wild Bergamot) | Graenicher, p. 96, 1910; synonym name Anthrax sinuosa used in this ref. |
| fly | Hemipenthes sinuosus (Sinuous Bee Fly) | Ruellia humilis (Wild Petunia) | Robertson, p. 21, 1928; synonym names Anthrax sinuosa and Ruellia ciliosa used in this ref. |
| fly | Heringia salax (Eastern Smoothleg) | Ranunculus hispidus (Swamp Buttercup) | Robertson, pp. 105-107, 1894; synonym names Pipiza pistica and Ranunculus septentrionalis used in this ref. |
| fly | Heringia salax (Eastern Smoothleg) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Pipiza pistica used in this ref. |
| fly | Heringia salax (Eastern Smoothleg) | Verbascum thapsus (Common Mullein) | Robertson, pp. 583-584, 1891; synonym name Pipiza pistica used in this ref. |
| fly | Hiatomyia cyanescens (Cobalt Deltawing) | Uvularia grandiflora (Large-flowered Bellwort) | Graenicher, pp. 21-22, 1907; synonym name Chilosia cyanescens used in this ref. |
| fly | Hybomitra lasiophthalma (Orange-sided Horse Fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909; synonym name Tabanus lasiophthalmus used in this ref. |
| fly | Hydrophoria sp. ( ) | Ranunculus hispidus (Swamp Buttercup) | Robertson, pp. 105-107, 1894; synonym name Ranunculus septentrionalis used in this ref. |
| fly | Hydrotaea sp. (a muscid fly) | Maianthemum stellatum (Starry False Solomon's Seal, Star-flowered Solomon's Seal) | Graenicher, pp. 35-37, 1907; synonym name Vagnera stellata used in this ref. |
| fly | Hydrotaea ignava (a muscid fly) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909; synonym name Ophyra leucostoma used in this ref. |
| fly | Hydrotaea ignava (a muscid fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Ophyra leucostoma used in this ref. |
| fly | Hypocritanus fascipennis (Eastern Band-winged Hover Fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Baccha fascipennis used in this ref. Formerly in genus Ocyptamus. |
| fly | Leucostoma simplex (a tachinid fly) | Conyza canadensis (Canadian Horseweed) | Graenicher, pp. 59-60, 1909; synonym names Leueostoma atra and Erigeron canadensis used in this ref. |
| fly | Leucostoma simplex (a tachinid fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909; synonym name Leueostoma atra used in this ref. |
| fly | Leucostoma simplex (a tachinid fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Leueostoma atra used in this ref. |
| fly | Leucostoma simplex (a tachinid fly) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym names Leueostoma atra and Aster paniculatus used in this ref. |
| fly | Leucostoma simplex (a tachinid fly) | Symphyotrichum lateriflorum (Calico Aster) | Graenicher, pp. 43-44, 1909; synonym names Leueostoma atra and Aster lateriflorus used in this ref. |
| fly | Leucostoma simplex (a tachinid fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym names Leueostoma atra and Aster puniceus used in this ref. |
| fly | Limnophora sp. ( ) | Apocynum cannabinum (Indian Hemp) | Robertson, pp. 70-71, 1891 |
| fly | Limnophora garrula ( ) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym names Leucomelina garrula and Solidago graminifolia used in this ref. |
| fly | Limnophora garrula ( ) | Helenium autumnale (Common Sneezeweed) | Graenicher, pp. 68-69, 1909; synonym name Leucomelina garrula used in this ref. |
| fly | Limonia canadensis (a crane fly) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909; synonym name Geranomyia canadensis used in this ref. |
| fly | Lonchaea polita (Lance Fly) | Rhus aromatica (Fragrant Sumac) | Robertson, pp. 161-163, 1896; both Rhus canadensis which is a synonym, and the correct plant name are used in this ref. |
| fly | Lucilia sp. ( ) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909 |
| fly | Lucilia sp. (a blow fly) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894 |
| fly | Lucilia sp. ( ) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym name Aster macrophyllus used in this ref. |
| fly | Lucilia sp. ( ) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym name Solidago graminifolia used in this ref. |
| fly | Lucilia sp. ( ) | Symphyotrichum lateriflorum (Calico Aster) | Graenicher, pp. 43-44, 1909; synonym name Aster lateriflorus used in this ref. |
| fly | Lucilia caesar (Blow Fly) | Apocynum cannabinum (Indian Hemp) | Robertson, pp. 70-71, 1891 |
| fly | Lucilia caesar (Blow fly, Common Greenbottle) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889; synonym name Lucilia ruficeps used in this ref. |
| fly | Lucilia caesar (Blow fly, Common Greenbottle) | Echinocystis lobata (Wild Cucumber) | Robertson, p. 106, 1928 |
| fly | Lucilia caesar (Blow fly, Common Greenbottle) | Melilotus albus (White Sweet Clover) | Robertson, pp. 273-274, 1893; synonym name Melilotus alba used in this ref. |
| fly | Lucilia caesar (Blow fly, Common Greenbottle) | Persicaria pensylvanica (Pennsylvania Smartweed) | Robertson, p. 72, 1896; synonym name Polygonum pennsylvanicum used in this ref. |
| fly | Lucilia cornicina ( ) | Chamaecrista fasciculata (Partridge Pea) | Robertson, pp. 202-203, 1890; synonym name Cassia chamaecrista used in this ref. |
| fly | Lucilia cornicina ( ) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889 |
| fly | Lucilia cornicina ( ) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894 |
| fly | Lucilia cornicina ( ) | Enemion biternatum (False Rue Anemone) | Robertson, pp. 173-175, 1892; synonym name Isopyrum biternatum used in this ref. |
| fly | Lucilia cornicina ( ) | Erythronium albidum (White Trout Lily) | Robertson, pp. 69-70, 1892 |
| fly | Lucilia cornicina ( ) | Euphorbia corollata (Flowering Spurge) | Robertson, pp. 77-75, 1896 |
| fly | Lucilia cornicina ( ) | Melilotus albus (White Sweet Clover) | Robertson, pp. 273-274, 1893; synonym name Melilotus alba used in this ref. |
| fly | Lucilia cornicina ( ) | Mollugo verticillata (Carpetweed) | Robertson, p. 274, 1892 |
| fly | Lucilia cornicina ( ) | Persicaria pensylvanica (Pennsylvania Smartweed) | Robertson, p. 72, 1896; synonym name Polygonum pennsylvanicum used in this ref. |
| fly | Lucilia cornicina ( ) | Rhus aromatica (Fragrant Sumac) | Robertson, pp. 161-163, 1896; both Rhus canadensis which is a synonym, and the correct plant name are used in this ref. |
| fly | Lucilia cornicina ( ) | Sambucus canadensis (Common Elderberry) | Robertson, pp. 274-275, 1892 |
| fly | Lucilia sericata (Common Green Bottle Fly, a blow fly) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym name Eupatorium urticaefolium used in this ref. |
| fly | Lucilia sericata (Blow Fly) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894; synonym name Lucilia latifrons used in this ref. |
| fly | Lucilia sericata (a blow fly) | Echinocystis lobata (Wild Cucumber) | Robertson, p. 106, 1928 |
| fly | Lucilia sericata (Common Green Bottle Fly, a blow fly) | Erigeron annuus (Annual Fleabane) | Graenicher, pp. 60-61, 1909 |
| fly | Lucilia sericata (Common Green Bottle Fly, a blow fly) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym name Aster macrophyllus used in this ref. |
| fly | Lucilia sericata (Common Green Bottle Fly, a blow fly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym name Solidago graminifolia used in this ref. |
| fly | Lucilia sericata (Common Green Bottle Fly, a blow fly) | Helenium autumnale (Common Sneezeweed) | Graenicher, pp. 68-69, 1909 |
| fly | Lucilia sericata (a blow fly) | Maianthemum racemosum (False Solomon's Seal) | Graenicher, pp. 34-35, 1907; synonym name Vagnera racemose used in this ref. |
| fly | Lucilia sericata (Common Green Bottle Fly, a blow fly) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym name Aster drummondii used in this ref. |
| fly | Lucilia sericata (Common Green Bottle Fly, a blow fly) | Tanacetum vulgare (Common Tansy) | Graenicher, p. 72, 1909 |
| fly | Lucilia silvarum (a blow fly) | Maianthemum racemosum (False Solomon's Seal) | Graenicher, pp. 34-35, 1907; synonym name Lucilia sylvarum used in this ref. |
| fly | Lucilia sylrarum (Common Toad Fly, a blow fly) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909 |
| fly | Lucilia sylrarum (Common Toad Fly, a blow fly) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym name Eupatorium urticaefolium used in this ref. |
| fly | Lucilia sylrarum (Common Toad Fly, a blow fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909 |
| fly | Lucilia sylrarum (Common Toad Fly, a blow fly) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym name Aster macrophyllus used in this ref. |
| fly | Lucilia sylrarum (Common Toad Fly, a blow fly) | Packera aurea (Golden Ragwort) | Graenicher, pp. 73-74, 1909; synonym name Senecio aureus used in this ref. |
| fly | Lucilia sylrarum (Common Toad Fly, a blow fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Lucilia sylrarum (Common Toad Fly, a blow fly) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym name Aster drummondii used in this ref. |
| fly | Lucilia sylrarum (Common Toad Fly, a blow fly) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym name Aster paniculatus used in this ref. |
| fly | Lucilia sylrarum (Common Toad Fly, a blow fly) | Symphyotrichum lateriflorum (Calico Aster) | Graenicher, pp. 43-44, 1909; synonym name Aster lateriflorus used in this ref. |
| fly | Lucilia sylvarum (a blow fly) | Maianthemum stellatum (Starry False Solomon's Seal, Star-flowered Solomon's Seal) | Graenicher, pp. 35-37, 1907; synonym name Vagnera stellata used in this ref. |
| fly | Mallota cimbiciformis (a hoverfly) | Maianthemum stellatum (Starry False Solomon's Seal, Star-flowered Solomon's Seal) | Graenicher, pp. 35-37, 1907; synonym name Vagnera stellata used in this ref. |
| fly | Mallota posticata (Hairy-eyed Mimic) | Maianthemum canadense (Canada Mayflower) | Graenicher, pp. 37-38, 1907; synonym name Unifolium canadense used in this ref. |
| fly | Mallota posticata (Hairy-eyed Mimic) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Melanophrys insolita (a tachinid fly) | Maianthemum stellatum (Starry False Solomon's Seal, Star-flowered Solomon's Seal) | Graenicher, pp. 35-37, 1907; synonym name Vagnera stellata used in this ref. |
| fly | Melanostoma mellinum (Variable Duskyface) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909 |
| fly | Meromyza americana (a grass fly) | Erigeron annuus (Annual Fleabane) | Graenicher, pp. 60-61, 1909 |
| fly | Milesia sp. ( ) | Echinocystis lobata (Wild Cucumber) | Robertson, p. 106, 1928 |
| fly | Milesia virginiensis (Virginia Giant) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909 |
| fly | Miltogramma argentifrons ( ) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894 |
| fly | Miltogramma argentifrons ( ) | Euphorbia corollata (Flowering Spurge) | Robertson, pp. 77-75, 1896 |
| fly | Minettia lupulina ( ) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym names Sapromyza lupulina and Solidago graminifolia used in this ref. |
| fly | Morellia micans (a muscid fly) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909 |
| fly | Morellia micans (a muscid fly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909 |
| fly | Morellia micans (a muscid fly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym name Solidago graminifolia used in this ref. |
| fly | Morellia micans (a muscid fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Morellia micans (a muscid fly) | Symphyotrichum lateriflorum (Calico Aster) | Graenicher, pp. 43-44, 1909; synonym name Aster lateriflorus used in this ref. |
| fly | Musca sp. ( ) | Echinocystis lobata (Wild Cucumber) | Robertson, p. 106, 1928 |
| fly | Musca domestica (House Fly) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym name Eupatorium urticaefolium used in this ref. |
| fly | Musca domestica (House Fly) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894 |
| fly | Musca domestica (House Fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909 |
| fly | Musca domestica (House Fly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym name Solidago graminifolia used in this ref. |
| fly | Musca domestica (House Fly) | Helianthus giganteus (Giant Sunflower) | Graenicher, p. 68, 1909 |
| fly | Musca domestica (House Fly) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym name Chrysanthemum leucanthemum used in this ref. |
| fly | Musca domestica (House Fly) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym name Aster drummondii used in this ref. |
| fly | Musca domestica (House Fly) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym name Aster laevis used in this ref. |
| fly | Musca domestica (House Fly) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym name Aster paniculatus used in this ref. |
| fly | Musca domestica (House Fly) | Symphyotrichum lateriflorum (Calico Aster) | Graenicher, pp. 43-44, 1909; synonym name Aster lateriflorus used in this ref. |
| fly | Musca domestica (House Fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym name Aster puniceus used in this ref. |
| fly | Mydaea sp. ( ) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Mydas clavatus (Clubbed Mydas Fly) | Asclepias incarnata (Swamp Milkweed) | Robertson, pp. 571-572, 1891; synonym name Midas clavatus used in this ref. |
| fly | Mydas clavatus (Clubbed Mydas Fly) | Asclepias syriaca (Common Milkweed) | Robertson, pp. 572-574, 1891; synonym names Midas clavatus and Asclepias cornuti used in this ref. |
| fly | Mydas clavatus (Clubbed Mydas Fly) | Dalea candida (White Prairie Clover) | Robertson, p. 133, 1928; synonym names Midas clavatus and Petalostemum candidum used in this ref. |
| fly | Myopa vesiculosa (a thick-headed fly) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889 |
| fly | Myospila meditabunda (a muscid fly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym names Myiospila meditabunda and Solidago graminifolia used in this ref. |
| fly | Nematocera sp. ( ) | Arisaema triphyllum (Jack-in-the-pulpit) | Robertson, p. 28, 1928 |
| fly | Nemotelus nigrinus (a soldier fly) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909; synonym name Nemotelus unicolor used in this ref. |
| fly | Nemotelus nigrinus (a soldier fly) | Erigeron annuus (Annual Fleabane) | Graenicher, pp. 60-61, 1909; synonym name Nemotelus unicolor used in this ref. |
| fly | Nemotelus nigrinus (a soldier fly) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym names Nemotelus unicolor and Chrysanthemum leucanthemum used in this ref. |
| fly | Neoascia globosa (Black-margined Fen Fly) | Maianthemum canadense (Canada Mayflower) | Graenicher, pp. 37-38, 1907; synonym name Unifolium canadense used in this ref. |
| fly | Neoascia globosa (Black-margined Fen Fly) | Maianthemum stellatum (Starry False Solomon's Seal, Star-flowered Solomon's Seal) | Graenicher, pp. 35-37, 1907; synonym name Vagnera stellata used in this ref. |
| fly | Neomyia sp. ( ) | Echinocystis lobata (Wild Cucumber) | Robertson, p. 106, 1928; synonym name Pseudopyrellia used in this ref. |
| fly | Neomyia sp. ( ) | Mollugo verticillata (Carpetweed) | Robertson, p. 22, 1928; synonym name Pseudopyrellia used in this ref. |
| fly | Ocyptamus fuscipennis (Dusky-winged Hover Fly) | Circaea lutetiana (Enchanter's Nightshade) | Robertson, pp. 146-147, 1928; synonym name Baccha fuscipennis used in this ref. |
| fly | Odontomyia cincta (a soldier fly) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909 |
| fly | Odontomyia cincta (a soldier fly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909 |
| fly | Odontomyia cincta (a soldier fly) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909 |
| fly | Odontomyia cincta (a soldier fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Odontomyia virgo (a soldier fly) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909 |
| fly | Odontomyia virgo (a soldier fly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909 |
| fly | Odontomyia virgo (a soldier fly) | Erigeron annuus (Annual Fleabane) | Graenicher, pp. 60-61, 1909 |
| fly | Odontomyia virgo (a soldier fly) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym name Chrysanthemum leucanthemum used in this ref. |
| fly | Odontomyia virgo (a soldier fly) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909 |
| fly | Odontomyia virgo (a soldier fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Odoutomyia pubescens (a soldier fly) | Maianthemum stellatum (Starry False Solomon's Seal, Star-flowered Solomon's Seal) | Graenicher, pp. 35-37, 1907; synonym name Vagnera stellata used in this ref. |
| fly | Onesia sp. ( ) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909 |
| fly | Onesia sp. ( ) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Ophyra sp. ( ) | Echinocystis lobata (Wild Cucumber) | Robertson, p. 106, 1928 |
| fly | Orthonevra nitida (Wavy Mucksucker) | Euphorbia corollata (Flowering Spurge) | Robertson, pp. 77-75, 1896; synonym name Chrysogaster nitida used in this ref. |
| fly | Orthonevra nitida (Wavy Mucksucker) | Sambucus canadensis (Common Elderberry) | Robertson, pp. 274-275, 1892; synonym name Chrysogaster nitida used in this ref. |
| fly | Orthonevra pulchella (Dusky Mucksucker) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909; synonym name Chrysogaster pulchella used in this ref. |
| fly | Orthonevra pulchella (Dusky Mucksucker) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Chrysogaster pulchella used in this ref. |
| fly | Orthonevra pulchella (Dusky Mucksucker) | Tanacetum vulgare (Common Tansy) | Graenicher, p. 72, 1909; synonym name Chrysogaster pulchella used in this ref. |
| fly | Paradidyma singularis (a bristle fly) | Persicaria pensylvanica (Pennsylvania Smartweed) | Robertson, p. 72, 1896; synonym names Atrophopoda singularis and Polygonum pennsylvanicum used in this ref. |
| fly | Paragus bicolor ( ) | Amorpha canescens (Lead Plant) | Robertson, pp. 80-81, 1890 |
| fly | Paragus bicolor (a hoverfly) | Conyza canadensis (Canadian Horseweed) | Graenicher, pp. 59-60, 1909; synonym name Erigeron canadensis used in this ref. |
| fly | Paragus bicolor (a hoverfly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909 |
| fly | Paragus bicolor (a flower fly) | Euphorbia corollata (Flowering Spurge) | Robertson, pp. 77-75, 1896 |
| fly | Paragus bicolor (a flower fly) | Mitella diphylla (Bishop's Cap, Mitrewort) | Graenicher, pp. 88-89, 1907 |
| fly | Paragus bicolor (a hoverfly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Paragus tibialis (a hoverfly) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym name Eupatorium urticaefolium used in this ref. |
| fly | Paragus tibialis (a hoverfly) | Euphorbia corollata (Flowering Spurge) | Robertson, pp. 77-75, 1896 |
| fly | Paragus tibialis (a hoverfly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym name Solidago graminifolia used in this ref. |
| fly | Paragus tibialis (a hoverfly) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym name Chrysanthemum leucanthemum used in this ref. |
| fly | Paragus tibialis (a hoverfly) | Mollugo verticillata (Carpetweed) | Robertson, p. 22, 1928 |
| fly | Paragus tibialis (a hoverfly) | Mollugo verticillata (Carpetweed) | Robertson, p. 274, 1892 |
| fly | Paragus tibialis (a hoverfly) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym name Aster paniculatus used in this ref. |
| fly | Paragus tibialis (a hoverfly) | Viola pubescens (Smooth Yellow Violet) | Robertson, pp. 172-173, 1889 |
| fly | Parhelophilus laetus (Common Bog Fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Helophilus laetus used in this ref. |
| fly | Parhelophilus laetus (Common Bog Fly) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym names Helophilus laetus and Aster paniculatus used in this ref. |
| fly | Peleteria sp. ( ) | Bidens frondosa (Devil's Beggarticks) | Robertson, p. 59, 1928 |
| fly | Peleteria robusta (a tachinid fly) | Maianthemum stellatum (Starry False Solomon's Seal, Star-flowered Solomon's Seal) | Graenicher, pp. 35-37, 1907; synonym name Vagnera stellata used in this ref. |
| fly | Phasia purpurascens ( ) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894; synonym name Hyalomyia purpurascens used in this ref. |
| fly | Phasia robertsonii ( ) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym names Alophora fumosa and Aster puniceus used in this ref. |
| fly | Phorbia sp. ( ) | Abutilon theophrasti (Velvet Leaf) | Robertson, pp. 269-270, 1893; synonym names Chortophila and Abutilon avicennae used in this ref. |
| fly | Phorbia sp. (a short-horned fly) | Maianthemum racemosum (False Solomon's Seal) | Graenicher, pp. 34-35, 1907; synonym name Vagnera racemose used in this ref. |
| fly | Phorbia sp. (a short-horned fly) | Ranunculus hispidus (Swamp Buttercup) | Robertson, pp. 105-107, 1894; synonym names Chortophila and Ranunculus septentrionalis used in this ref. |
| fly | Phorbia spp. ( ) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894; synonym name Chortophila used in this ref. |
| fly | Phorbia spp. (a short-horned fly) | Sambucus canadensis (Common Elderberry) | Robertson, pp. 274-275, 1892; synonym name Chortophila used in this ref. |
| fly | Phormia regina (Black Blow Fly) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909 |
| fly | Phormia regina (Black Blow Fly) | Echinocystis lobata (Wild Cucumber) | Robertson, p. 106, 1928 |
| fly | Phormia regina (Black Blow Fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909 |
| fly | Phormia regina (Black Blow Fly) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909 |
| fly | Phormia regina (Black Blow Fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Phormia regina (Black Blow Fly) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym name Aster laevis used in this ref. |
| fly | Phormia regina (Black Blow Fly) | Tanacetum vulgare (Common Tansy) | Graenicher, p. 72, 1909 |
| fly | Phorocera sp. ( ) | Chamaecrista fasciculata (Partridge Pea) | Robertson, pp. 202-203, 1890; synonym name Cassia chamaecrista used in this ref. |
| fly | Physocephala tibialis (a thick-headed fly) | Asclepias incarnata (Swamp Milkweed) | Robertson, pp. 571-572, 1891 |
| fly | Physocephala tibialis (a thick-headed fly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909 |
| fly | Physocephala tibialis (a thick-headed fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym name Aster puniceus used in this ref. |
| fly | Physoconops brachyrhynchus (a thick-headed fly) | Asclepias incarnata (Swamp Milkweed) | Robertson, pp. 571-572, 1891; synonym name Conops xanthopareus used in this ref. |
| fly | Physoconops brachyrhynchus (a thick-headed fly) | Dalea candida (White Prairie Clover) | Robertson, p. 133, 1928; synonym names Conops xanthopareus and Petalostemum candidum used in this ref. |
| fly | Physoconops brachyrhynchus (a thick-headed fly) | Melilotus albus (White Sweet Clover) | Robertson, pp. 273-274, 1893; synonym names Conops brachyrrhynchus and Melilotus alba used in this ref. |
| fly | Pipiza femoralis (White-haired Pithead) | Ranunculus hispidus (Swamp Buttercup) | Robertson, pp. 105-107, 1894; synonym name Ranunculus septentrionalis used in this ref. |
| fly | Platycheirus quadratus (Meadow Sedgesitter) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894; synonym name Platychirus quadratus used in this ref. |
| fly | Platycheirus quadratus (Meadow Sedgesitter) | Melilotus albus (White Sweet Clover) | Robertson, pp. 273-274, 1893; synonym names Platychirus quadratus and Melilotus alba used in this ref. |
| fly | Platychirus peltatus (a hoverfly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909 |
| fly | Poecilanthrax alcyon (Serene Variegated Bee Fly) | Echinacea purpurea (Eastern Purple Coneflower) | Robertson, p. 59, 1928; synonym names Anthrax halcyon and Brauneria purpurea used in this ref. |
| fly | Poecilanthrax alcyon (Serene Variegated Bee Fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909; synonym name Anthrax halcyon used in this ref. |
| fly | Poecilanthrax alcyon (Serene Variegated Bee Fly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym names Anthrax halcyon and Solidago graminifolia used in this ref. |
| fly | Poecilanthrax alcyon (Serene Variegated Bee Fly) | Helenium autumnale (Common Sneezeweed) | Graenicher, pp. 68-69, 1909; synonym name Anthrax halcyon used in this ref. |
| fly | Poecilanthrax alcyon (Serene Variegated Bee Fly) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909; synonym name Anthrax halcyon used in this ref. |
| fly | Poecilanthrax alcyon (Serene Variegated Bee Fly) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909; synonym name Anthrax halcyon used in this ref. |
| fly | Poecilanthrax alcyon (Serene Variegated Bee Fly) | Rudbeckia laciniata (Cut-leaf Coneflower) | Graenicher, p. 92, 1910; synonym name Anthrax halcyon used in this ref. |
| fly | Poecilanthrax alcyon (Serene Variegated Bee Fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Anthrax halcyon used in this ref. |
| fly | Poecilanthrax alcyon (Serene Variegated Bee Fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym names Anthrax halcyon and Aster puniceus used in this ref. |
| fly | Poecilognathus punctipennis (a bee fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909; synonym name Phthiria punctipennis used in this ref. |
| fly | Poecilognathus punctipennis (a bee fly) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909; synonym name Phthiria punctipennis used in this ref. |
| fly | Poecilognathus punctipennis (a bee fly) | Heliopsis helianthoides (Smooth Oxeye) | Graenicher, pp. 63-64, 1909; synonym namesPhthiria punctipennis and Heliopsis scabra used in this ref. |
| fly | Poecilognathus punctipennis (a bee fly) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909; synonym name Phthiria punctipennis used in this ref. |
| fly | Poecilognathus punctipennis (a bee fly) | Rudbeckia laciniata (Cut-leaf Coneflower) | Graenicher, pp. 64-65, 1909; synonym name Phthiria punctipennis used in this ref. |
| fly | Pollenia rudis (Cluster Fly) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909 |
| fly | Pollenia rudis (Cluster Fly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909 |
| fly | Pollenia rudis (Cluster Fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909 |
| fly | Pollenia rudis (Cluster Fly) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym name Aster macrophyllus used in this ref. |
| fly | Pollenia rudis (Cluster Fly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym name Solidago graminifolia used in this ref. |
| fly | Pollenia rudis (Cluster Fly) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym name Chrysanthemum leucanthemum used in this ref. |
| fly | Pollenia rudis (Cluster Fly) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym name Aster drummondii used in this ref. |
| fly | Pollenia rudis (Cluster Fly) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym name Aster laevis used in this ref. |
| fly | Pollenia rudis (Cluster Fly) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym name Aster paniculatus used in this ref. |
| fly | Pollenia rudis (Cluster Fly) | Symphyotrichum lateriflorum (Calico Aster) | Graenicher, pp. 43-44, 1909; synonym name Aster lateriflorus used in this ref. |
| fly | Pollenia rudis (Cluster Fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym name Aster puniceus used in this ref. |
| fly | Pollenia rudis (Cluster Fly) | Tanacetum vulgare (Common Tansy) | Graenicher, p. 72, 1909 |
| fly | Protophormia terraenovae (Northern Blow Fly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909; synonym name Phormia terra-novae used in this ref. |
| fly | Pseudodoros clavatus ( ) | Nuttallanthus canadensis (Blue Toadflax) | Robertson, pp. 585-586, 1891; synonym names Baccha clavata, Baccha babista and Linaria canadensis used in this ref. |
| fly | Pseudodoros clavatus ( ) | Symphyotrichum pilosum (Awl Aster) | Robertson, pp. 50-53, 1928; synonym names Baccha clavata and Aster ericoides villosus used in this ref. |
| fly | Ravinia assidua ( ) | Echinocystis lobata (Wild Cucumber) | Robertson, p. 106, 1928; synonym name Sarcophaga assidua used in this ref. |
| fly | Rhamphomyia sp. ( ) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909 |
| fly | Rhamphomyia piligeronis ( ) | Caulophyllum thalictroides (Blue Cohosh) | Robertson, pp. 154-155, 1896 |
| fly | Rhamphomyia priapulus (a dance fly) | Rhus aromatica (Fragrant Sumac) | Robertson, pp. 161-163, 1896; both Rhus canadensis which is a synonym, and the correct plant name are used in this ref. |
| fly | Rhingia nasica (American Snout Fly) | Caulophyllum thalictroides (Blue Cohosh) | Robertson, pp. 154-155, 1896 |
| fly | Rhingia nasica (American Snout Fly) | Hydrophyllum virginianum (Virginia Waterleaf) | Robertson, p. 579, 1891; synonym name Hydrophyllum virginicum used in this ref. |
| fly | Rhingia nasica (American Snout Fly) | Impatiens pallida (Pale Touch-me-not) | Robertson, pp. 301-302, 1889 |
| fly | Rhynchanthrax parvicornis (a bee fly) | Echinacea purpurea (Eastern Purple Coneflower) | Robertson, p. 59, 1928; synonym names Anthrax parvicornis and Brauneria purpurea used in this ref. |
| fly | Rhynchanthrax parvicornis (a bee fly) | Verbena hastata (Blue Vervain) | Graenicher, p. 95, 1910; synonym name Anthrax parvicornis used in this ref. |
| fly | Rivellia quadrifasciata (Soybean Nodule Fly) | Chamaecrista fasciculata (Partridge Pea) | Robertson, pp. 202-203, 1890; synonym name Cassia chamaecrista used in this ref. |
| fly | Sarcophaga sp. (a flesh fly) | Apocynum cannabinum (Indian Hemp) | Robertson, pp. 70-71, 1891 |
| fly | Sarcophaga sp. (a common flesh fly) | Chamaecrista fasciculata (Partridge Pea) | Robertson, pp. 202-203, 1890; synonym name Cassia chamaecrista used in this ref. |
| fly | Sarcophaga sp. (a common flesh fly) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894 |
| fly | Sarcophaga sp. (a common flesh fly ) | Dalea purpurea (Purple Prairie Clover) | Robertson, pp. 81-82, 1890; synonym name Petalostemon violaceus used in this ref. |
| fly | Sarcophaga sp. (a flesh fly) | Maianthemum racemosum (False Solomon's Seal) | Graenicher, pp. 34-35, 1907; synonym name Vagnera racemose used in this ref. |
| fly | Sarcophaga sp. (a flesh fly) | Maianthemum stellatum (Starry False Solomon's Seal, Star-flowered Solomon's Seal) | Graenicher, pp. 35-37, 1907; synonym name Vagnera stellata used in this ref. |
| fly | Sarcophaga sp. (a flesh fly) | Mollugo verticillata (Carpetweed) | Robertson, p. 274, 1892 |
| fly | Sarcophaga spp. ( ) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889 |
| fly | Sarcophaga spp. ( ) | Melilotus albus (White Sweet Clover) | Robertson, pp. 273-274, 1893; synonym name Melilotus alba used in this ref. |
| fly | Sarcophaga spp. ( ) | Persicaria pensylvanica (Pennsylvania Smartweed) | Robertson, p. 72, 1896; synonym name Polygonum pennsylvanicum used in this ref. |
| fly | Sargus viridis (a soldier fly) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889 |
| fly | Scathophaga furcata ( ) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym names Scatophaga furcata and Eupatorium urticaefolium used in this ref. |
| fly | Scathophaga furcata ( ) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889; synonym name Scatophaga squalida used in this ref. |
| fly | Scathophaga furcata ( ) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym names Scatophaga furcata and Solidago graminifolia used in this ref. |
| fly | Scathophaga furcata ( ) | Tanacetum vulgare (Common Tansy) | Graenicher, p. 72, 1909; synonym name Scatophaga furcata used in this ref. |
| fly | Scathophaga stercoraria (Golden Dung Fly) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym names Scatophaga stercoraria and Chrysanthemum leucanthemum used in this ref. |
| fly | Sciara sp. ( ) | Apocynum cannabinum (Indian Hemp) | Robertson, pp. 70-71, 1891 |
| fly | Sciara fuliginosa ( ) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909 |
| fly | Sciara fuliginosa ( ) | Conyza canadensis (Canadian Horseweed) | Graenicher, pp. 59-60, 1909; synonym name Erigeron canadensis used in this ref. |
| fly | Sepsis sp. ( ) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889 |
| fly | Sepsis sp. (a sepsid fly) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894 |
| fly | Sepsis vicaria (a sepsid fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909; synonym name Sepsis violacea used in this ref. |
| fly | Sericompia militaris (Narrow-banded Pond Fly) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909 |
| fly | Sericompia militaris (Narrow-banded Pond Fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym name Aster puniceus used in this ref. |
| fly | Siphona sp. ( ) | Boechera laevigata (Smooth Rock Cress) | Robertson, p. 102, 1928; synonym name Arabis laevigata used in this ref. |
| fly | Siphona geniculata (a tachinid fly) | Maianthemum stellatum (Starry False Solomon's Seal, Star-flowered Solomon's Seal) | Graenicher, pp. 35-37, 1907; synonym name Vagnera stellata used in this ref. |
| fly | Siphonella oscinina (a fruit fly) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym name Aster macrophyllus used in this ref. |
| fly | Siphonella oscinina (a fruit fly) | Tanacetum vulgare (Common Tansy) | Graenicher, p. 72, 1909 |
| fly | Spallanzania sp. ( ) | Bidens frondosa (Devil's Beggarticks) | Robertson, p. 59, 1928 |
| fly | Spallanzania hesperidarum ( ) | Apocynum cannabinum (Indian Hemp) | Robertson, pp. 70-71, 1891; synonym name Acroglossa hesperidarum used in this ref. |
| fly | Spallanzania hesperidarum ( ) | Asclepias incarnata (Swamp Milkweed) | Robertson, pp. 571-572, 1891; synonym name Acroglossa hesperidarum used in this ref. |
| fly | Spallanzania hesperidarum ( ) | Asclepias tuberosa (Butterfly Milkweed) | Robertson, pp. 575-576, 1891; synonym name Acroglossa hesperidarum used in this ref. |
| fly | Spallanzania hesperidarum ( ) | Melilotus albus (White Sweet Clover) | Robertson, pp. 273-274, 1893; synonym names Acroglossa hesperidarum and Melilotus alba used in this ref. |
| fly | Sparnopolius sp. ( ) | Symphyotrichum pilosum (Awl Aster) | Robertson, pp. 50-53, 1928; synonym name Aster ericoides villosus used in this ref. |
| fly | Sphaerophoria sp. ( ) | Cardamine concatenata (Cutleaf Toothwort) | Robertson, p. 104, 1928; synonym name Dentaria laciniata used in this ref. |
| fly | Spilomyia fusca (Bald-faced Hornet Fly) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym name Eupatorium urticaefolium used in this ref. |
| fly | Spilomyia longicornis (Eastern Hornet Fly) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym name Eupatorium urticaefolium used in this ref. |
| fly | Spilomyia longicornis (Eastern Hornet Fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909 |
| fly | Spilomyia longicornis (Eastern Hornet Fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Stomoxys calcitrans (Stable Fly) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym name Eupatorium urticaefolium used in this ref. |
| fly | Stomoxys calcitrans (Stable Fly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909 |
| fly | Stomoxys calcitrans (Stable Fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909 |
| fly | Stomoxys calcitrans (Stable Fly) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym name Aster macrophyllus used in this ref. |
| fly | Stomoxys calcitrans (Stable Fly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym name Solidago graminifolia used in this ref. |
| fly | Stomoxys calcitrans (Stable Fly) | Helenium autumnale (Common Sneezeweed) | Graenicher, pp. 68-69, 1909 |
| fly | Stomoxys calcitrans (Stable Fly) | Rudbeckia laciniata (Cut-leaf Coneflower) | Graenicher, pp. 64-65, 1909 |
| fly | Stomoxys calcitrans (Stable Fly) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym name Aster drummondii used in this ref. |
| fly | Stomoxys calcitrans (Stable Fly) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym name Aster laevis used in this ref. |
| fly | Stomoxys calcitrans (Stable Fly) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym name Aster paniculatus used in this ref. |
| fly | Stomoxys calcitrans (Stable Fly) | Symphyotrichum lateriflorum (Calico Aster) | Graenicher, pp. 43-44, 1909; synonym name Aster lateriflorus used in this ref. |
| fly | Stomoxys calcitrans (Stable Fly) | Symphyotrichum novae-angliae (New England Aster) | Graenicher, pp. 50-51, 1909; synonym name Aster novae-angliae used in this ref. |
| fly | Stomoxys calcitrans (Stable Fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym name Aster puniceus used in this ref. |
| fly | Stomoxys calcitrans (Stable Fly) | Tanacetum vulgare (Common Tansy) | Graenicher, p. 72, 1909 |
| fly | Stratiomys badia (a soldier fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Stratiomyia badia used in this ref. Some refs. use the name S. badius. |
| fly | Stratiomys lativentris (a soldier fly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909; synonym name Stratiomyia lativentris used in this ref. |
| fly | Stratiomys lativentris (a soldier fly) | Maianthemum racemosum (False Solomon's Seal) | Graenicher, pp. 34-35, 1907; synonym names Stratiomyia lativentris and Vagnera racemose used in this ref. |
| fly | Stratiomys lativentris (a soldier fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Stratiomyia lativentris used in this ref. |
| fly | Stratiomys meigenii (a soldier fly) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909; synonym name Stratiomyia meigenii used in this ref. |
| fly | Stratiomys normula (a soldier fly) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909; synonym name Stratiomyia lativentris used in this ref. |
| fly | Stratiomys normula (a soldier fly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909; synonym name Stratiomyia lativentris used in this ref. |
| fly | Stratiomys normula (a soldier fly) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909; synonym name Stratiomyia lativentris used in this ref. |
| fly | Stratiomys normula (a soldier fly) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym names Stratiomyia lativentris and Chrysanthemum leucanthemum used in this ref. |
| fly | Stratiomys normula (a soldier fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Stratiomyia lativentris used in this ref. |
| fly | Stylogaster neglecta (a thick-headed fly) | Verbena stricta (Hoary Vervain) | Robertson, p. 67, 1892 |
| fly | Stylogaster neglecta (a thick-headed fly) | Verbena urticifolia (White Vervain) | Robertson, p. 68, 1892 |
| fly | Syritta sp. ( ) | Echinocystis lobata (Wild Cucumber) | Robertson, p. 106, 1928 |
| fly | Syritta sp. ( ) | Hackelia virginiana (Virginia Stickseed) | Robertson, pp. 80-81, 1928; synonym name Lappula virginiana used in this ref. |
| fly | Syritta pipiens (Common Compost Fly) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909 |
| fly | Syritta pipiens (Common Compost Fly) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym name Eupatorium urticaefolium used in this ref. |
| fly | Syritta pipiens (Common Compost Fly, Hover Fly) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889 |
| fly | Syritta pipiens (Common Compost Fly) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894 |
| fly | Syritta pipiens (Common Compost Fly) | Conyza canadensis (Canadian Horseweed) | Graenicher, pp. 59-60, 1909; synonym name Erigeron canadensis used in this ref. |
| fly | Syritta pipiens (Common Compost Fly) | Erigeron annuus (Annual Fleabane) | Graenicher, pp. 60-61, 1909 |
| fly | Syritta pipiens (Common Compost Fly) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909 |
| fly | Syritta pipiens (Common Compost Fly, Hover Fly) | Euphorbia corollata (Flowering Spurge) | Robertson, pp. 77-75, 1896 |
| fly | Syritta pipiens (Common Compost Fly) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym name Aster macrophyllus used in this ref. |
| fly | Syritta pipiens (Common Compost Fly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym name Solidago graminifolia used in this ref. |
| fly | Syritta pipiens (Common Compost Fly) | Helenium autumnale (Common Sneezeweed) | Graenicher, pp. 68-69, 1909 |
| fly | Syritta pipiens (Common Compost Fly) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909 |
| fly | Syritta pipiens (Common Compost Fly) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym name Chrysanthemum leucanthemum used in this ref. |
| fly | Syritta pipiens (Common Compost Fly) | Maianthemum stellatum (Starry False Solomon's Seal, Star-flowered Solomon's Seal) | Graenicher, pp. 35-37, 1907; synonym name Vagnera stellata used in this ref. |
| fly | Syritta pipiens (Common Compost Fly) | Melilotus albus (White Sweet Clover) | Robertson, pp. 273-274, 1893; synonym name Melilotus alba used in this ref. |
| fly | Syritta pipiens (Common Compost Fly) | Packera aurea (Golden Ragwort) | Graenicher, pp. 73-74, 1909; synonym name Senecio aureus used in this ref. |
| fly | Syritta pipiens (Common Compost Fly) | Persicaria pensylvanica (Pennsylvania Smartweed) | Robertson, p. 72, 1896; synonym name Polygonum pennsylvanicum used in this ref. |
| fly | Syritta pipiens (Common Compost Fly) | Ratibida pinnata (Gray-headed Coneflower) | Graenicher, pp. 65-66, 1909; synonym name Lepachys pinnata used in this ref. |
| fly | Syritta pipiens (Common Compost Fly) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909 |
| fly | Syritta pipiens (Common Compost Fly) | Rudbeckia laciniata (Cut-leaf Coneflower) | Graenicher, pp. 64-65, 1909 |
| fly | Syritta pipiens (Common Compost Fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Syritta pipiens (Common Compost Fly) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym name Aster drummondii used in this ref. |
| fly | Syritta pipiens (Common Compost Fly) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym name Aster laevis used in this ref. |
| fly | Syritta pipiens (Common Compost Fly) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym name Aster paniculatus used in this ref. |
| fly | Syritta pipiens (Common Compost Fly) | Symphyotrichum novae-angliae (New England Aster) | Graenicher, pp. 50-51, 1909; synonym name Aster novae-angliae used in this ref. |
| fly | Syritta pipiens (Common Compost Fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym name Aster puniceus used in this ref. |
| fly | Syritta pipiens (Common Compost Fly) | Tanacetum vulgare (Common Tansy) | Graenicher, p. 72, 1909 |
| fly | Syritta pipiens (Common Compost Fly) | Verbascum thapsus (Common Mullein) | Robertson, pp. 583-584, 1891 |
| fly | Syritta pipiens (Common Compost Fly, Hover Fly) | Verbena urticifolia (White Vervain) | Robertson, p. 68, 1892 |
| fly | Syrphus sp. (a hover fly) | Sanguinaria canadensis (Bloodroot) | Robertson, pp. 175-176, 1892 |
| fly | Syrphus ribesii (Common Flower Fly) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym name Eupatorium urticaefolium used in this ref. |
| fly | Syrphus ribesii (Common Flower Fly) | Cardamine concatenata (Cutleaf Toothwort) | Robertson, pp. 298-299, 1889; synonym name Dentaria laciniata used in this ref. |
| fly | Syrphus ribesii (Common Flower Fly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909 |
| fly | Syrphus ribesii (Common Flower Fly) | Claytonia virginica (Virginia Spring Beauty) | Robertson, pp. 177-178, 1889 |
| fly | Syrphus ribesii (Common Flower Fly) | Echinocystis lobata (Wild Cucumber) | Robertson, p. 106, 1928 |
| fly | Syrphus ribesii (Common Flower Fly) | Enemion biternatum (False Rue Anemone) | Robertson, pp. 173-175, 1892; synonym nameIsopyrum biternatum used in this ref. |
| fly | Syrphus ribesii (Common Flower Fly) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909 |
| fly | Syrphus ribesii (Common Flower Fly) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym name Chrysanthemum leucanthemum used in this ref. |
| fly | Syrphus ribesii (Common Flower Fly) | Persicaria pensylvanica (Pennsylvania Smartweed) | Robertson, p. 72, 1896; synonym name Polygonum pennsylvanicum used in this ref. |
| fly | Syrphus ribesii (Common Flower Fly) | Ranunculus hispidus (Swamp Buttercup) | Robertson, pp. 105-107, 1894; synonym name Ranunculus septentrionalis used in this ref. |
| fly | Syrphus ribesii (Common Flower Fly) | Rhus aromatica (Fragrant Sumac) | Robertson, pp. 161-163, 1896; both Rhus canadensis which is a synonym, and the correct plant name are used in this ref. |
| fly | Syrphus ribesii (Common Flower Fly) | Sambucus canadensis (Common Elderberry) | Robertson, pp. 274-275, 1892 |
| fly | Syrphus ribesii (Common Flower Fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909 |
| fly | Syrphus ribesii (Common Flower Fly) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym name Aster drummondii used in this ref. |
| fly | Syrphus ribesii (Common Flower Fly) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym name Aster laevis used in this ref. |
| fly | Syrphus ribesii (Common Flower Fly) | Symphyotrichum novae-angliae (New England Aster) | Graenicher, pp. 50-51, 1909; synonym name Aster novae-angliae used in this ref. |
| fly | Syrphus torvus (Hairy-eyed Flower Fly) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym name Aster drummondii used in this ref. |
| fly | Syrphus torvus (Hairy-eyed Flower Fly) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym name Aster laevis used in this ref. |
| fly | Systoechus sp. ( ) | Cirsium discolor (Field Thistle) | Robertson, pp. 64-65, 1928 |
| fly | Systoechus sp. ( ) | Echinacea purpurea (Eastern Purple Coneflower) | Robertson, p. 59, 1928; synonym name Brauneria purpurea used in this ref. |
| fly | Systoechus vulgaris (Common Bee Fly) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909 |
| fly | Systoechus vulgaris (Common Bee Fly) | Heliopsis helianthoides (Smooth Oxeye) | Graenicher, pp. 63-64, 1909; synonym name Heliopsis scabra used in this ref. |
| fly | Systoechus vulgaris (Common Bee Fly) | Lythrum salicaria (Purple Loosestrife) | Robertson, p. 179, 1892. The author employs the name L. alatum, which is a synonym for L. acutangulum. The plant described ap |
| fly | Systoechus vulgaris (Common Bee Fly) | Melilotus albus (White Sweet Clover) | Graenicher, p. 93, 1910; synonym name Melilotus alba used in this ref. |
| fly | Systoechus vulgaris (Common Bee Fly) | Monarda fistulosa (Wild Bergamot) | Graenicher, p. 93, 1910 |
| fly | Systoechus vulgaris (Common Bee Fly) | Teucrium canadense (Germander) | Graenicher, p. 93, 1910 |
| fly | Systoechus vulgaris (Common Bee Fly) | Verbena hastata (Blue Vervain) | Graenicher, p. 93, 1910 |
| fly | Systoechus vulgaris (Common Bee Fly) | Verbena hastata (Blue Vervain) | Robertson, pp. 67-68, 1892 |
| fly | Systropus sp. (a bee fly) | Symphyotrichum pilosum (Awl Aster) | Robertson, pp. 50-53, 1928; synonym name Aster ericoides villosus used in this ref. |
| fly | Tabanus lineola (Lined Horse Fly, Striped Horse Fly) | Chamaecrista fasciculata (Partridge Pea) | Robertson, pp. 202-203, 1890; synonym name Cassia chamaecrista used in this ref. |
| fly | Thaumatomyia glabra (Chloropid Fly, a grass fly) | Caulophyllum thalictroides (Blue Cohosh) | Robertson, pp. 154-155, 1896; synonym name Chlorops trivialis used in this ref. |
| fly | Thecophora abbreviata (a thick-headed fly) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909; synonym name Oncomyia abbreviata used in this ref. |
| fly | Thecophora abbreviata (a thick-headed fly) | Erigeron annuus (Annual Fleabane) | Graenicher, pp. 60-61, 1909; synonym name Oncomyia abbreviata used in this ref. |
| fly | Thecophora abbreviata (a thick-headed fly) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym names Oncomyia abbreviata and Aster macrophyllus used in this ref. |
| fly | Thecophora abbreviata (a thick-headed fly) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym names Oncomyia abbreviata and Chrysanthemum leucanthemum used in this ref. |
| fly | Thecophora abbreviata (a thick-headed fly) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909; synonym name Oncomyia abbreviata used in this ref. |
| fly | Thecophora abbreviata (a thick-headed fly) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym names Oncomyia abbreviata and Aster laevis used in this ref. |
| fly | Thecophora occidensis (a thick-headed fly) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909; synonym name Oncomyia loraria used in this ref. |
| fly | Thecophora occidensis (a thick-headed fly) | Clematis virginiana (Virgin's Bower) | Robertson, pp. 103-105, 1894; synonym name Oncomyia loraria used in this ref. |
| fly | Thecophora occidensis (a thick-headed fly) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym names Oncomyia loraria and Aster macrophyllus used in this ref. |
| fly | Thecophora occidensis (a thick-headed fly) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym names Oncomyia loraria and Solidago graminifolia used in this ref. |
| fly | Thecophora occidensis (a thick-headed fly) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym names Oncomyia loraria and Chrysanthemum leucanthemum used in this ref. |
| fly | Thecophora occidensis (a thick-headed fly) | Melilotus albus (White Sweet Clover) | Robertson, pp. 273-274, 1893; synonym names Oncomyia loraria and Melilotus alba used in this ref. |
| fly | Thecophora occidensis (a thick-headed fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Oncomyia loraria used in this ref. |
| fly | Thecophora occidensis (a thick-headed fly) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym names Oncomyia loraria and Aster drummondii used in this ref. |
| fly | Themira putris (a black scavenger fly) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909 |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909; synonym name Mesogramma geminate used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym names Mesogramma geminate and Eupatorium urticaefolium used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Circaea lutetiana (Enchanter's Nightshade) | Robertson, pp. 146-147, 1928; synonym name Mesogramma geminata used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909; synonym name Mesogramma geminate used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Cirsium vulgare (Bull Thistle) | Graenicher, pp. 75-76, 1909; synonym names Mesogramma geminate and Cirsium lanceolatum used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Conyza canadensis (Canadian Horseweed) | Graenicher, pp. 59-60, 1909; synonym names Mesogramma geminate and Erigeron canadensis used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Echinocystis lobata (Wild Cucumber) | Robertson, p. 106, 1928; synonym name Mesogramma geminata used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Erigeron annuus (Annual Fleabane) | Graenicher, pp. 60-61, 1909; synonym name Mesogramma geminate used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym names Mesogramma geminate and Aster macrophyllus used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym names Mesogramma geminate and Solidago graminifolia used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Helianthus giganteus (Giant Sunflower) | Graenicher, p. 68, 1909; synonym name Mesogramma geminate used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909; synonym name Mesogramma geminate used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Heliopsis helianthoides (Smooth Oxeye) | Graenicher, pp. 63-64, 1909; synonym names Mesogramma geminate and Heliopsis scabra used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym names Mesogramma geminate and Chrysanthemum leucanthemum used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Packera aurea (Golden Ragwort) | Graenicher, pp. 73-74, 1909; synonym names Mesogramma geminate and Senecio aureus used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Ratibida pinnata (Gray-headed Coneflower) | Graenicher, pp. 65-66, 1909; synonym names Mesogramma geminate and Lepachys pinnata used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909; synonym name Mesogramma geminate used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Rudbeckia laciniata (Cut-leaf Coneflower) | Graenicher, pp. 64-65, 1909; synonym name Mesogramma geminate used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Mesogramma geminate used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym names Mesogramma geminate and Aster drummondii used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym names Mesogramma geminate and Aster laevis used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym names Mesogramma geminate and Aster paniculatus used in this ref. |
| fly | Toxomerus geminatus (Eastern Calligrapher) | Symphyotrichum novae-angliae (New England Aster) | Graenicher, pp. 50-51, 1909; synonym names Mesogramma geminate and Aster novae-angliae used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Achillea millefolium (Common Yarrow) | Graenicher, pp. 69-70, 1909; synonym name Mesogramma marginata used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Circaea lutetiana (Enchanter's Nightshade) | Robertson, pp. 146-147, 1928; synonym name Mesogramma marginata used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909; synonym name Mesogramma marginata used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Conyza canadensis (Canadian Horseweed) | Graenicher, pp. 59-60, 1909; synonym names Mesogramma marginata and Erigeron canadensis used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Echinocystis lobata (Wild Cucumber) | Robertson, p. 106, 1928; synonym name Mesogramma marginata used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Erigeron annuus (Annual Fleabane) | Graenicher, pp. 60-61, 1909; synonym name Mesogramma marginata used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909; synonym name Mesogramma marginata used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Eurybia macrophylla (Large-leaved Aster) | Graenicher, pp. 46-47, 1909; synonym names Mesogramma marginata and Aster macrophyllus used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym names Mesogramma marginata and Solidago graminifolia used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Geum canadense (White Avens) | Robertson, p. 169, 1928; synonym name Mesogramma marginata used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909; synonym name Mesogramma marginata used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Leucanthemum vulgare (Ox-eye Daisy) | Graenicher, p. 71, 1909; synonym names Mesogramma marginata and Chrysanthemum leucanthemum used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Mollugo verticillata (Carpetweed) | Robertson, p. 22, 1928; synonym name Mesogramma marginata used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Ratibida pinnata (Gray-headed Coneflower) | Graenicher, pp. 65-66, 1909; synonym names Mesogramma marginata and Lepachys pinnata used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909; synonym name Mesogramma marginata used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Mesogramma marginata used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Symphyotrichum drummondii (Drummond's Aster) | Graenicher, pp. 48-49, 1909; synonym names Mesogramma marginata and Aster drummondii used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym names Mesogramma marginata and Aster laevis used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym names Mesogramma marginata and Aster paniculatus used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Symphyotrichum novae-angliae (New England Aster) | Graenicher, pp. 50-51, 1909; synonym names Mesogramma marginata and Aster novae-angliae used in this ref. |
| fly | Toxomerus marginatus (Margined Calligrapher) | Tanacetum vulgare (Common Tansy) | Graenicher, p. 72, 1909; synonym name Mesogramma marginata used in this ref. |
| fly | Toxomerus politus (Maize Calligrapher) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym names Mesogramma polita and Solidago graminifolia used in this ref. |
| fly | Toxomerus politus (Maize Calligrapher) | Persicaria pensylvanica (Pennsylvania Smartweed) | Robertson, p. 72, 1896; synonym names Mesograpta polita and Polygonum pennsylvanicum used in this ref. |
| fly | Toxomerus politus (Maize Calligrapher) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym names Mesogramma polita and Aster paniculatus used in this ref. |
| fly | Toxophora sp. ( ) | Symphyotrichum pilosum (Awl Aster) | Robertson, pp. 50-53, 1928; synonym name Aster ericoides villosus used in this ref. |
| fly | Toxophora amphitea (Symmetric Hunchback Bee Fly) | Nuttallanthus canadensis (Blue Toadflax) | Robertson, pp. 585-586, 1891; synonym name Linaria canadensis used in this ref. |
| fly | Trichopsomyia apisaon (Black-haired Psyllid-killer) | Euphorbia corollata (Flowering Spurge) | Robertson, pp. 77-75, 1896; synonym name Pipiza pulchella used in this ref. |
| fly | Trichopsomyia apisaon (Black-haired Psyllid-killer) | Mollugo verticillata (Carpetweed) | Robertson, p. 22, 1928; synonym name Pipiza pulchella used in this ref. |
| fly | Trichopsomyia apisaon (Black-haired Psyllid-killer) | Mollugo verticillata (Carpetweed) | Robertson, p. 274, 1892; synonym name Pipiza pulchella used in this ref. |
| fly | Tropidia albistylum (Yellow-thighed Thickleg) | Bidens frondosa (Devil's Beggarticks) | Robertson, p. 59, 1928 |
| fly | Tropidia mamillata (Shiny Thickleg) | Amorpha canescens (Lead Plant) | Robertson, pp. 80-81, 1890 |
| fly | Tropidia mamillata (Shiny Thickleg) | Apocynum cannabinum (Indian Hemp) | Robertson, pp. 70-71, 1891 |
| fly | Tropidia quadrata (Common Thickleg) | Ageratina altissima (White Snakeroot) | Graenicher, pp. 52-53, 1909; synonym name Eupatorium urticaefolium used in this ref. |
| fly | Tropidia quadrata (Common Thickleg) | Allium cernuum (Nodding Wild Onion) | Graenicher, pp. 25-26, 1907 |
| fly | Tropidia quadrata (Common Thickleg, Common Thick-Legged Fly) | Apocynum cannabinum (Indian Hemp) | Robertson, pp. 70-71, 1891 |
| fly | Tropidia quadrata (Common Thickleg) | Cirsium arvense (Canada Thistle) | Graenicher, pp. 76-77, 1909 |
| fly | Tropidia quadrata (Common Thickleg) | Dalea candida (White Prairie Clover) | Robertson, p. 133, 1928; synonym name Petalostemum candidum used in this ref. |
| fly | Tropidia quadrata (Common Thickleg) | Eupatorium perfoliatum (Boneset) | Graenicher, pp. 51-52, 1909 |
| fly | Tropidia quadrata (Common Thickleg) | Euthamia graminifolia (Lance-leaved Goldenrod) | Graenicher, pp. 58-59, 1909; synonym name Solidago graminifolia used in this ref. |
| fly | Tropidia quadrata (Common Thickleg) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909 |
| fly | Tropidia quadrata (Common Thickleg) | Lythrum salicaria (Purple Loosestrife) | Robertson, p. 179, 1892. The author employs the name L. alatum, which is a synonym for L. acutangulum. The plant described ap |
| fly | Tropidia quadrata (Common Thickleg) | Maianthemum stellatum (Starry False Solomon's Seal, Star-flowered Solomon's Seal) | Graenicher, pp. 35-37, 1907; synonym name Vagnera stellata used in this ref. |
| fly | Tropidia quadrata (Common Thickleg) | Persicaria pensylvanica (Pennsylvania Smartweed) | Robertson, p. 72, 1896; synonym name Polygonum pennsylvanicum used in this ref. |
| fly | Tropidia quadrata (Common Thickleg) | Symphyotrichum laeve (Smooth Blue Aster) | Graenicher, p. 50, 1909; synonym name Aster laevis used in this ref. |
| fly | Tropidia quadrata (Common Thickleg) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym name Aster paniculatus used in this ref. |
| fly | Tropidia quadrata (Common Thickleg) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym name Aster puniceus used in this ref. |
| fly | Tropidia quadrata (Common Thickleg) | Tanacetum vulgare (Common Tansy) | Graenicher, p. 72, 1909 |
| fly | Villa alternata (a bee fly) | Apocynum cannabinum (Indian Hemp) | Robertson, pp. 70-71, 1891; synonym name Anthrax alternata used in this ref. |
| fly | Villa alternata (a bee fly) | Cicuta maculata (Water Hemlock) | Graenicher, p. 92, 1910; synonym name Anthrax alternata used in this ref. |
| fly | Villa alternata (a bee fly) | Euphorbia corollata (Flowering Spurge) | Robertson, pp. 77-75, 1896; synonym name Anthrax alternata used in this ref. |
| fly | Villa alternata (a bee fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Anthrax alternata used in this ref. |
| fly | Villa alternata (a bee fly) | Symphyotrichum pilosum (Awl Aster) | Robertson, pp. 50-53, 1928; synonym namesAnthrax alternata and Aster ericoides villosus used in this ref. |
| fly | Villa alternata (a bee fly) | Verbena hastata (Blue Vervain) | Graenicher, p. 92, 1910; synonym name Anthrax alternata used in this ref. |
| fly | Villa fulviana (Tawny-tailed Bee Fly) | Solidago canadensis (Canada Goldenrod) | Graenicher, pp. 56-58, 1909; synonym name Anthrax fulviana used in this ref. |
| fly | Villa fulviana (Tawny-tailed Bee Fly) | Symphyotrichum lanceolatum (Panicled Aster) | Graenicher, p. 44, 1909; synonym names Anthrax fulviana and Aster paniculatus used in this ref. |
| fly | Villa fulviana (Tawny-tailed Bee Fly) | Symphyotrichum puniceum (Purple-stemmed Aster) | Graenicher, p. 49, 1909; synonym names Anthrax fulviana and Aster puniceus used in this ref. |
| fly | Xylota ejuncida (Polished Leafwalker) | Maianthemum stellatum (Starry False Solomon's Seal, Star-flowered Solomon's Seal) | Graenicher, pp. 35-37, 1907; synonym name Vagnera stellata used in this ref. |
| fly | Zadion fulvifrons (a thick-headed fly) | Maianthemum canadense (Canada Mayflower) | Graenicher, pp. 37-38, 1907; synonym name Unifolium canadense used in this ref. |
| fly | Zodion americanum (a thick-headed fly) | Dalea candida (White Prairie Clover) | Robertson, p. 133, 1928; synonym names Zodion nanellum and Petalostemum candidum used in this ref. |
| fly | Zodion americanum (a thick-headed fly) | Mollugo verticillata (Carpetweed) | Robertson, p. 274, 1892; synonym name Zodion nanellum used in this ref. |
| fly | Zodion americanum (a thick-headed fly) | Mollugo verticillata (Carpetweed) | Robertson, p. 22, 1928; synonym name Zodion nanellum used in this ref. |
| fly | Zodion fulvifrons (a thick-headed fly) | Helianthus strumosus (Woodland Sunflower) | Graenicher, pp. 66-67, 1909 |
| fly | Zodion fulvifrons (a thick-headed fly) | Packera aurea (Golden Ragwort) | Graenicher, pp. 73-74, 1909; synonym name Senecio aureus used in this ref. |
| fly | Zodion fulvifrons (a thick-headed fly) | Ratibida pinnata (Gray-headed Coneflower) | Graenicher, pp. 65-66, 1909; synonym name Lepachys pinnata used in this ref. |
| fly | Zodion fulvifrons (a thick-headed fly) | Rudbeckia hirta (Black-eyed Susan) | Graenicher, p. 64, 1909 |
| fly | Zodion obliquefasciatum (a thick-headed fly) | Echinacea purpurea (Eastern Purple Coneflower) | Robertson, p. 59, 1928; synonym name Brauneria purpurea used in this ref. |