| Anasimyia anausis Walker, 1849 | Moon-Shaped Swamp Fly |
| Anasimyia bilinearis Williston, 1887 | Two-Lined Swamp Fly |
| Anasimyia chrysostoma Wiedemann, 1830 | |
| Anasimyia chrysostomus Wiedemann, 1830 | Lump-Legged Swamp Fly |
| Anasimyia lineata Fabricius, 1787 | |
| Anasimyia lunulata Meigen, 1822 | |
| Anasimyia lunulatus Meigen, 1822 | Syrphid fly |
| Anasimyia matutina Locke, Skevi..., 2019 | |
| Arctophila flagrans (Osten Sacken, 1875) | ⇒ Sericomyia flagrans Osten-sacken, 1875 |
| Asemosyrphus oculiferus (Bigot, 1882) | ⇒ Lejops mexicanus Macquart, 1842 |
| Asemosyrphus polygrammus Loew, 1872 | |
| Blera analis Macquart, 1842 | Orange-Tailed Wood Fly |
| Blera armillata Osten Sacken, 1875 | |
| Blera badia Walker, 1849 | Common Wood Fly |
| Blera confusa Johnson, 1913 | Confusing Wood Fly |
| Blera flukei Curran, 1953 | |
| Blera garretti Curran, 1924 | |
| Blera humeralis Williston, 1882 | |
| Blera johnsoni Coquillett, 1894 | |
| Blera metcalfi Curran, 1925 | |
| Blera nigra Williston, 1887 | |
| Blera nigripes Curran, 1925 | |
| Blera notata Wiedemann, 1830 | |
| Blera pictipes Bigot, 1883 | |
| Blera robusta Curran, 1922 | |
| Blera scitula Williston, 1882 | |
| Blera umbratilis Williston, 1887 | |
| Brachymyia lupina (Williston, 1882) | ⇒ Criorhina lupina Williston, 1882 |
| Brachymyia nigripes (Williston, 1882) | ⇒ Criorhina nigripes Williston, 1882 |
| Brachyopa basalaris | |
| Brachyopa basilaris (Curran, 1922) | ⇒ Brachyopa cinereovittata Bigot, 1883 |
| Brachyopa caesariata Moran & Skev..., 2019 | |
| Brachyopa cinereovittata Bigot, 1883 | |
| Brachyopa cynops Snow, 1892 | Piper mistletoe |
| Brachyopa daeckei Johnson, 1917 | Greenland stitchwort |
| Brachyopa diversa Johnson, 1917 | Greenland stitchwort |
| Brachyopa ferruginea Fallen, 1817 | |
| Brachyopa flavescens Shannon, 1915 | Obispo suncup |
| Brachyopa gigas Lovett, 1919 | Frog's-britches |
| Brachyopa media Williston, 1882 | Whorled clustervine |
| Brachyopa nigricauda (Curran, 1922) | ⇒ Brachyopa daeckei Johnson, 1917 |
| Brachyopa notata Osten Sacken, 1875 | |
| Brachyopa perplexa Curran, 1922 | |
| Brachyopa punctipennis Curran, 1925 | |
| Brachyopa rufiabdominalis Jones, 1917 | Bolander's silene |
| Brachyopa vacua Osten Sacken, 1875 | |
| Brachypalpus (Brachypalpus) oarus Walker, 1849 | Eastern Catkin Fly |
| Brachypalpus (Crioprora) alopex Osten Sacken, 1877 | |
| Brachypalpus (Crioprora) amithaon Walker, 1849 | |
| Brachypalpus (Crioprora) cyanella Osten Sacken, 1877 | |
| Brachypalpus (Crioprora) cyanogaster Loew, 1872 | Juniper globemallow |
| Brachypalpus (Crioprora) femorata Williston, 1882 | |
| Brachypalpus margaritus (Hull, 1946) | ⇒ Brachypalpus oarus Walker, 1849 |
| Brachypalpus rileyi | |
| Caliprobola aepalius | |
| Caliprobola aldrichi (Shannon, 1916) | ⇒ Hadromyia aldrichi Shannon, 1916 |
| Caliprobola crawfordi (Shannon, 1916) | ⇒ Hadromyia crawfordi Shannon, 1916 |
| Caliprobola opacus (Shannon, 1916) | ⇒ Hadromyia opaca Shannon, 1916 |
| Caliprobola pulcher | |
| Callicera duncani Curran, 1935 | |
| Callicera erratica Walker, 1849 | |
| Callicera erraticum Walker, 1849 | |
| Callicera johnsoni (Hunter, 1896) | ⇒ Callicera erraticum Walker, 1849 |
| Callicera montensis Snow, 1892 | Piper mistletoe |
| Ceriana (Ceriana) ornata Saunders, 1845 | Honey fly |
| Ceriana abbreviata Loew, 1864 | Northern Wasp Fly |
| Ceriana ancoralis Coquillett, 1902 | |
| Ceriana bellardii Shannon, 1925 | |
| Ceriana conopsoides Linnaeus, 1758 | |
| Ceriana cylindrica Curran, 1921 | |
| Ceriana durani Davidson, 1925 | |
| Ceriana engelhardti Shannon, 1925 | |
| Ceriana floridensis Shannon, 1922 | |
| Ceriana loewii Williston, 1887 | |
| Ceriana macquarti Shannon, 1925 | Beach suncup |
| Ceriana nigripennis Williston, 1887 | |
| Ceriana pedicellata Williston, 1887 | |
| Ceriana sayi Shannon, 1925 | |
| Ceriana schnablei Williston, 1892 | |
| Ceriana signifera Loew, 1853 | |
| Ceriana snowi Adams, 1904 | |
| Ceriana townsendi Snow, 1895 | |
| Ceriana tridens Loew, 1872 | |
| Ceriana willistoni Kahl, 1897 | |
| Chalcosyrphus (Chalcosyrphus) anomalus Shannon, 1925 | |
| Chalcosyrphus (Chalcosyrphus) aristatus Johnson, 1929 | |
| Chalcosyrphus (Chalcosyrphus) depressus Shannon, 1925 | |
| Chalcosyrphus (Chalcosyrphus) flexus Curran, 1941 | |
| Chalcosyrphus (Chalcosyrphus) nigromaculatus Jones, 1917 | |
| Chalcosyrphus (Chalcosyrphus) ontario Curran, 1941 | |
| Chalcosyrphus (Dimorphoxylota) eumerus Loew, 1869 | |
| Chalcosyrphus (Xylotina) nemorum Fabricius, 1805 | Dusky-Banded Forest Fly |
| Chalcosyrphus (Xylotodes) eunotus Loew, 1873 | |
| Chalcosyrphus (Xylotodes) piger Fabricius, 1794 | Short-Haired Leafwalker |
| Chalcosyrphus (Xylotodes) segnis | |
| Chalcosyrphus (Xylotomima) chalybeus Wiedemann, 1830 | Violet Leafwalker |
| Chalcosyrphus (Xylotomima) curvaria Curran, 1941 | Yellow-Haltered Forest Fly |
| Chalcosyrphus (Xylotomima) inarmatus Hunter, 1897 | |
| Chalcosyrphus (Xylotomima) libo Walker, 1849 | Long-Haired Forest Fly |
| Chalcosyrphus (Xylotomima) metallicus Wiedemann, 1830 | |
| Chalcosyrphus (Xylotomima) metallifer Bigot, 1884 | |
| Chalcosyrphus (Xylotomima) metallifera Bigot, 1883 | |
| Chalcosyrphus (Xylotomima) plesia Curran, 1925 | |
| Chalcosyrphus (Xylotomima) satanicus Bigot, 1884 | |
| Chalcosyrphus (Xylotomima) vecors Osten Sacken, 1875 | |
| Chalcosyrphus anthreas Walker, 1849 | |
| Chalcosyrphus chlorops Hull, 1948 | |
| Chalcosyrphus dubius Shannon, 1926 | |
| Chalcosyrphus interruptus Panzer, 1804 | |
| Chalcosyrphus pauxilla Williston, 1892 | |
| Chalcosyrphus sacawajeae Shannon, 1925 | |
| Chalcosyrphus sapphirina Hull, 1951 | |
| Chalcosyrphus satanica Bigot, 1883 | |
| Chalcosyrphus violascens Megerle, 1803 | |
| Cheilosia (Convocheila) albitarsis Meigen, 1822 | Buttercup Blacklet |
| Cheilosia (Convocheila) fasciata Schiner & Egger, 1853 | |
| Cheilosia (Convocheila) fraterna Meigen, 1830 | |
| Cheilosia (Convocheila) grossa Fallen, 1817 | Greater spring blacklet hoverfly |
| Cheilosia (Convocheila) hypena Becker, 1894 | |
| Cheilosia (Convocheila) illustrata Harris, 1780 | |
| Cheilosia (Convocheila) latifrons Zetterstedt, 1843 | Hoverfly |
| Cheilosia (Convocheila) pagana Meigen, 1822 | Hover fly |
| Cheilosia (Convocheila) pallipes Loew, 1863 | |
| Cheilosia (Convocheila) vernalis Fallen, 1817 | |
| Cheilosia aenea Scopoli, 1763 | |
| Cheilosia alaskensis Hunter, 1897 | Hemlock bark maggot |
| Cheilosia aldrichi Hunter, 1896 | |
| Cheilosia aldrichi pikei (Shannon, 1922) | ⇒ Cheilosia pikei Shannon, 1922 |
| Cheilosia ampla ♰ S. H. Scudder, 1878 | |
| Cheilosia atrocapilla Hull & Fluke, 1950 | |
| Cheilosia bardus (Harris, 1780) | ⇒ Cheilosia albitarsis Meigen, 1822 |
| Cheilosia baroni Williston, 1887 | |
| Cheilosia bicolorata Shannon, 1922 | |
| Cheilosia bigelowi Curran, 1926 | |
| Cheilosia borealis Coquillett, 1900 | |
| Cheilosia burkei Shannon, 1922 | |
| Cheilosia caltha Shannon, 1922 | |
| Cheilosia capillata Loew, 1863 | |
| Cheilosia catalina Shannon, 1922 | |
| Cheilosia chalybescens Williston, 1893 | |
| Cheilosia chintimini Lovett, 1921 | |
| Cheilosia chrysochlamys Williston, 1891 | |
| Cheilosia coerulea Fluke & Hull, 1946 | Jungermann's platydictya moss |
| Cheilosia columbiae Curran, 1922 | |
| Cheilosia comosa Loew, 1863 | |
| Cheilosia cottrelli Telford, 1939 | Rue |
| Cheilosia cratorhina Hull & Fluke, 1950 | |
| Cheilosia cyanescens Loew, 1863 | |
| Cheilosia cynoprosopa Hull & Fluke, 1950 | |
| Cheilosia depila Meigen, 1822 | |
| Cheilosia ferruginea Lovett, 1919 | |
| Cheilosia florella Shannon, 1922 | |
| Cheilosia gemini Shannon, 1922 | |
| Cheilosia hecate ♰ Hull & Fluke, 1950 | |
| Cheilosia hermiona Hull & Fluke, 1950 | |
| Cheilosia hesperia Shannon, 1922 | |
| Cheilosia hiantha Hull & Fluke, 1950 | |
| Cheilosia hoodiana Bigot, 1883 | Lowland fir bark |
| Cheilosia hunteri Curran, 1922 | |
| Cheilosia julietta Shannon, 1922 | |
| Cheilosia laevis Bigot, 1883 | |
| Cheilosia lasiophthalmus Williston, 1882 | Whorled clustervine |
| Cheilosia latrans Walker, 1849 | |
| Cheilosia leucoparea Loew, 1863 | |
| Cheilosia livida Wehr, 1922 | |
| Cheilosia lucta Snow, 1895 | |
| Cheilosia luna Hull & Fluke, 1950 | |
| Cheilosia margarita Hull & Fluke, 1950 | |
| Cheilosia meganosa Hull & Fluke, 1950 | |
| Cheilosia megatarsa Fluke & Hull, 1947 | |
| Cheilosia miocenica ♰ T. D. A. Coc..., 1909 | |
| Cheilosia montanipes Hull & Fluke, 1950 | |
| Cheilosia nannomorpha Hull & Fluke, 1950 | |
| Cheilosia nasica Hull & Fluke, 1950 | |
| Cheilosia nigresens Hull & Fluke, 1950 | |
| Cheilosia nigripennis (Williston, 1882) | ⇒ Chrysosyrphus nigripennis Williston, 1882 |
| Cheilosia nigrobarba Hull & Fluke, 1950 | |
| Cheilosia nigrocoerulea Lovett, 1921 | |
| Cheilosia nigrofasciata Curran, 1926 | |
| Cheilosia nigrovittata Lovett, 1919 | |
| Cheilosia obesa Hull & Fluke, 1950 | |
| Cheilosia occidentalis Williston, 1882 | Whorled clustervine |
| Cheilosia ontario Curran, 1922 | |
| Cheilosia orilliaenis Curran, 1922 | |
| Cheilosia orilliaensis Curran, 1922 | |
| Cheilosia pacifica (Hunter, 1897) | ⇒ Cheilosia nigrocoerulea Lovett, 1921 |
| Cheilosia parva (Kassebeer, 1998) | ⇒ Melanostoma mellinum Linnaeus, 1758 |
| Cheilosia pikei Shannon, 1922 | Heartleaf suncup |
| Cheilosia pilipes Bigot, 1884 | |
| Cheilosia pilosipes Hull & Fluke, 1950 | |
| Cheilosia plumosa (Coquillett, 1904) | ⇒ Hiatomyia plumosa Coquillett, 1904 |
| Cheilosia plutonia Hunter, 1897 | |
| Cheilosia pontiaca Shannon, 1922 | |
| Cheilosia porcina Hull & Fluke, 1950 | |
| Cheilosia prima Hunter, 1896 | |
| Cheilosia primoveris Shannon, 1915 | |
| Cheilosia promethea Hull & Fluke, 1950 | |
| Cheilosia punctulata Hunter, 1897 | |
| Cheilosia rhinoprosopa Hull & Fluke, 1950 | |
| Cheilosia rita (Curran, 1922) | ⇒ Cheilosia sialia Shannon, 1922 |
| Cheilosia robusta Hine, 1922 | |
| Cheilosia scilla Hull & Fluke, 1950 | |
| Cheilosia scudderi ♰ T. D. A. Coc..., 1931 | |
| Cheilosia sensua Curran, 1922 | |
| Cheilosia sepultula ♰ T. D. A. Coc..., 1916 | |
| Cheilosia seripila Hull & Fluke, 1950 | |
| Cheilosia shannoni Curran, 1923 | |
| Cheilosia sialia Shannon, 1922 | |
| Cheilosia signatiseta Hunter, 1896 | |
| Cheilosia sonoriana Shannon, 1922 | |
| Cheilosia sororcula Williston, 1891 | |
| Cheilosia sorrorcula Williston, 1891 | |
| Cheilosia speculum Hull & Fluke, 1950 | |
| Cheilosia swannanoa Brimley, 1925 | |
| Cheilosia tantalus Hull & Fluke, 1950 | |
| Cheilosia tristis Loew, 1863 | |
| Cheilosia wisconsinensis Fluke & Hull, 1947 | |
| Cheilosia yukonensis Shannon, 1922 | |
| Chrysogaster alaskensis (Shannon, 1922) | ⇒ Chrysosyrphus alaskensis Shannon, 1922 |
| Chrysogaster antiquaria ♰ F. M. Hull, 1945 | |
| Chrysogaster antiquarius Hull, 1945 | |
| Chrysogaster antitheus Walker, 1849 | Largeflower milkweed |
| Chrysogaster chilosioides | |
| Chrysogaster greenei (Shannon, 1916) | ⇒ Chrysogaster antitheus Walker, 1849 |
| Chrysogaster hirtella (Loew, 1843) | ⇒ Melanogaster hirtella Loew, 1843 |
| Chrysogaster inflatifrons Shannon, 1916 | Heartleaf suncup |
| Chrysogaster ithaca (Shannon, 1925) | ⇒ Chrysosyrphus frontosus Bigot, 1884 |
| Chrysogaster nigripes (Loew, 1863) | ⇒ Chrysogaster antitheus Walker, 1849 |
| Chrysogaster nigrivittata Loew, 1876 | |
| Chrysogaster nigrovittata (Loew, 1876) | ⇒ Orthonevra nigrovittata Loew, 1876 |
| Chrysogaster parva (Shannon, 1916) | ⇒ Orthonevra parva Shannon, 1916 |
| Chrysogaster pictipennis Loew, 1863 | |
| Chrysogaster pulchella (Williston, 1887) | ⇒ Orthonevra pulchella Williston, 1887 |
| Chrysogaster robusta (Shannon, 1916) | ⇒ Orthonevra robusta Shannon, 1916 |
| Chrysogaster texana (Shannon, 1916) | ⇒ Chrysogaster antitheus Walker, 1849 |
| Chrysogaster unicolor (Shannon, 1916) | ⇒ Orthonevra unicolor Shannon, 1916 |
| Chrysosyrphus alaskensis Shannon, 1922 | |
| Chrysosyrphus frontosus Bigot, 1884 | |
| Chrysosyrphus latus Loew, 1863 | |
| Chrysosyrphus nasuta Zetterstedt, 1838 | |
| Chrysosyrphus nigripennis Williston, 1882 | |
| Copestylum (Phalacromya) anna Williston, 1887 | |
| Copestylum (Phalacromya) apiciferum Townsend, 1895 | |
| Copestylum (Phalacromya) avidum Osten Sacken, 1877 | |
| Copestylum (Phalacromya) barei Curran, 1925 | |
| Copestylum (Phalacromya) caudatum Curran, 1927 | |
| Copestylum (Phalacromya) comstocki Williston, 1887 | |
| Copestylum (Phalacromya) florida Hull, 1941 | |
| Copestylum (Phalacromya) haagii Jaennicke, 1867 | |
| Copestylum (Phalacromya) isabellina Williston, 1887 | |
| Copestylum (Phalacromya) lentum Williston, 1887 | Beach clustervine |
| Copestylum (Phalacromya) macrocephalum Giglio-Tos, 1892 | |
| Copestylum (Phalacromya) mexicanum Macquart, 1842 | Mexican Cactus Fly |
| Copestylum (Phalacromya) satur Osten Sacken, 1877 | |
| Copestylum (Phalacromya) sexmaculatum Palisot de B..., 1819 | |
| Copestylum (Phalacromya) tamaulipanum Townsend, 1898 | Syrphid fly |
| Copestylum (Phalacromya) tricinctum Bigot, 1875 | |
| Copestylum (Phalacromya) victoria Williston, 1887 | |
| Copestylum (Phalacromya) violaceum Say, 1829 | |
| Copestylum (Phalacromya) vittatum Thompson, 1976 | Longstalk cranesbill |
| Copestylum (Volucellosia) fornax Townsend, 1895 | |
| Copestylum (Volucellosia) marginatum Say, 1829 | |
| Copestylum abdominale Wiedemann, 1830 | |
| Copestylum anastasia Hull, 1946 | |
| Copestylum apicale Loew, 1866 | Syrphid fly |
| Copestylum brunneum Thunberg, 1789 | |
| Copestylum caesariatum Williston, 1891 | |
| Copestylum correctum Curran, 1927 | |
| Copestylum eugenia Williston, 1887 | |
| Copestylum fraudulentum Williston, 1891 | |
| Copestylum furens Giglio-Tos, 1892 | |
| Copestylum hoya Curran, 1947 | Syrphid fly |
| Copestylum limbipenne Williston, 1887 | Beach clustervine |
| Copestylum megacephalum Loew, 1863 | |
| Copestylum neotropicum Thompson, 1976 | |
| Copestylum opalescens Townsend, 1901 | |
| Copestylum pallens Wiedemann, 1830 | |
| Copestylum posticum Say, 1829 | |
| Copestylum pusillum Macquart, 1842 | |
| Copestylum quadratum Williston, 1891 | |
| Copestylum simile Giglio-Tos, 1892 | Sand spikemoss |
| Copestylum sternale Curran, 1930 | |
| Copestylum tympanitis Fabricius, 1805 | |
| Copestylum vesicularium Curran, 1947 | |
| Copestylum vitttatum Thompson, 1976 | |
| Criorhina aurea Lovett, 1919 | Frog's-britches |
| Criorhina bubulcus Walker, 1849 | |
| Criorhina caudata Curran, 1925 | |
| Criorhina coquilletti Williston, 1892 | |
| Criorhina grandis Lovett, 1921 | Catesby's pitcherplant |
| Criorhina johnsoni (Coquillett, 1894) | ⇒ Blera johnsoni Coquillett, 1894 |
| Criorhina kincaidi Coquillett, 1901 | |
| Criorhina latipilosa Curran, 1925 | |
| Criorhina luna (Lovett, 1919) | ⇒ Criorhina bubulcus Walker, 1849 |
| Criorhina lupina Williston, 1882 | |
| Criorhina nigra (Williston, 1887) | ⇒ Blera nigra Williston, 1887 |
| Criorhina nigripes Williston, 1882 | |
| Criorhina nigriventris Walton, 1911 | Bare-Cheeked Bumble Fly |
| Criorhina occidentalis Osburn, 1908 | |
| Criorhina quadriboscis Lovett, 1919 | Frog's-britches |
| Criorhina scitula (Williston, 1882) | ⇒ Blera scitula Williston, 1882 |
| Criorhina tricolor Coquillett, 1900 | |
| Criorhina umbratilis (Williston, 1887) | ⇒ Blera umbratilis Williston, 1887 |
| Criorhina verbosa Walker, 1849 | |
| Cynorhinella bella Williston, 1882 | |
| Cynorhinella longinasus Shannon, 1924 | Longcapsule suncup |
| Cyphipelta rufocyanea Walker, 1835 | |
| Deineches fulva Ferguson, 1926 | |
| Eristalinus (Eristalodes) taeniops Wiedemann, 1818 | Band-eyed drone fly |
| Eristalinus (Lathyrophthalmus) aeneus Scopoli, 1763 | Common Lagoon Fly |
| Eristalinus (Lathyrophthalmus) arvorum Fabricius, 1787 | Syrphid fly |
| Eristalinus (Lathyrophthalmus) hervebazini Klocker, 1924 | |
| Eristalinus (Lathyrophthalmus) modestus Wiedemann, 1818 | |
| Eristalinus (Lathyrophthalmus) punctulatus Macquart, 1847 | Native Drone Fly |
| Eristalis (Eoseristalis) anthophorina Fallen, 1817 | Orange-Spotted Drone Fly |
| Eristalis (Eoseristalis) arbustorum Linnaeus, 1758 | European Drone Fly |
| Eristalis (Eoseristalis) bellardii Jaennicke, 1867 | Winkler cactus |
| Eristalis (Eoseristalis) cryptarum Fabricius, 1794 | Bog hoverfly |
| Eristalis (Eoseristalis) dimidiata (Wiedemann, 1830) | ⇒ Cheilosia fraterna Meigen, 1830 |
| Eristalis (Eoseristalis) flavipes (Walker, 1849) | ⇒ Eristalis barda Say, 1829 |
| Eristalis (Eoseristalis) interrupta Poda, 1761 | |
| Eristalis (Eoseristalis) lineata (Harris, 1776) | ⇒ Eristalis horticola De Geer, 1776 |
| Eristalis (Eoseristalis) obscura Loew, 1866 | |
| Eristalis (Eoseristalis) oestracea Linnaeus, 1758 | |
| Eristalis (Eoseristalis) parens (Bigot, 1880) | ⇒ Eristalis dimidiatus Wiedemann, 1830 |
| Eristalis (Eoseristalis) pertinax Scopoli, 1763 | |
| Eristalis (Eoseristalis) rupium Fabricius, 1805 | Hover fly |
| Eristalis (Eoseristalis) similis Fallen, 1817 | |
| Eristalis (Eoseristalis) stipator Osten Sacken, 1877 | Yellow-Shouldered Drone Fly |
| Eristalis (Eoseristalis) tenax Linnaeus, 1758 | Common Drone Fly |
| Eristalis (Eoseristalis) transversa Wiedemann, 1830 | Transverse Flower Fly |
| Eristalis (Eristalis) gomojunovae Violovitsh, 1977 | Fourpart dwarf gentian |
| Eristalis (Eristalis) groenlandicus | |
| Eristalis (Eristalis) hirta Loew, 1866 | |
| Eristalis agrorum Wiedemann, 1830 | |
| Eristalis albifrons (Wiedemann, 1830) | ⇒ Palpada albifrons Wiedemann, 1830 |
| Eristalis anthophorinus Fallen, 1817 | |
| Eristalis atriceps (Loew, 1866) | ⇒ Eristalis cryptarum Fabricius, 1794 |
| Eristalis barda Say, 1829 | |
| Eristalis bardus Say, 1829 | |
| Eristalis basilaris Macquart, 1834 | White bryony |
| Eristalis brousii Williston, 1882 | Whorled clustervine |
| Eristalis dimidiatus Wiedemann, 1830 | |
| Eristalis fraterculus Zetterstedt, 1838 | |
| Eristalis gatesi Thompson, 1997 | Bill Gates´ flower fly |
| Eristalis hirtus (Loew, 1866) | ⇒ Eristalis hirta Loew, 1866 |
| Eristalis lapideus ♰ Scudder, 1877 | |
| Eristalis latifrons (Zetterstedt, 1843) | ⇒ Cheilosia latifrons Zetterstedt, 1843 |
| Eristalis meijerei Goot, 1964 | |
| Eristalis melanostomus Loew, 1866 | |
| Eristalis nemorum (Linnaeus, 1758) | ⇒ Eristalis arbustorum Linnaeus, 1758 |
| Eristalis occidentalis (Osburn, 1907) | ⇒ Eristalis anthophorinus Fallen, 1817 |
| Eristalis pilosa (Loew, 1866) | ⇒ Eristalis fraterculus Zetterstedt, 1838 |
| Eristalis rufipilis (Hull, 1925) | ⇒ Eristalis barda Say, 1829 |
| Eristalis saxorum Wiedemann, 1830 | Blue-Polished Drone Fly |
| Eristalis texanus (Hull, 1925) | ⇒ Palpada texana Hull, 1925 |
| Eristalis transversus (Wiedemann, 1830) | ⇒ Eristalis transversa Wiedemann, 1830 |
| Eristalis vinetorum Fabricius, 1798 | |
| Eumerus aurifrons Wiedemann, 1824 | Syrphid fly |
| Eumerus canariensis Baez, 1982 | |
| Eumerus etnensis Van Der Goot, 1964 | |
| Eumerus figurans Walker, 1859 | Arizona milkweed |
| Eumerus funeralis (Meigen, 1822) | ⇒ Eumerus strigata Fallen, 1817 |
| Eumerus lasiops Rondani, 1857 | |
| Eumerus latipes Macquart, 1846 | |
| Eumerus lejops Rondani, 1857 | |
| Eumerus narcissi Smith, 1928 | Hover fly |
| Eumerus obliquus Fabricius, 1805 | Onion bulb fly |
| Eumerus peltatus Meijere, 1908 | |
| Eumerus strigata Fallen, 1817 | |
| Eumerus strigatus Fallen, 1817 | Hover fly |
| Eumerus tuberculatus Rondani, 1857 | Lesser bulb fly |
| Ferdinandea aeneicolor Shannon, 1924 | Longcapsule suncup |
| Ferdinandea buccata Loew, 1863 | |
| Ferdinandea croesus Osten Sacken, 1877 | |
| Ferdinandea cuprea Scopoli, 1763 | Common Copperback |
| Ferdinandea dives Osten Sacken, 1877 | |
| Ferdinandea nigripes Osten Sacken, 1877 | |
| Hadromyia (Chrysosomidia) aerea Bigot, 1883 | |
| Hadromyia (Chrysosomidia) aldrichi Shannon, 1916 | |
| Hadromyia (Chrysosomidia) crawfordi Shannon, 1916 | |
| Hadromyia (Chrysosomidia) pulchra Williston, 1882 | |
| Hadromyia (Hadromyia) grandis Williston, 1882 | Whorled clustervine |
| Hadromyia (Hadromyia) morissoni Bigot, 1883 | |
| Hadromyia opaca Shannon, 1916 | |
| Hammerschmidtia sedmani Vockeroth, M..., 2019 | |
| Helophilus (Helophilus) affinis Wahlberg, 1844 | |
| Helophilus (Helophilus) bottnicus Wahlberg, 1844 | |
| Helophilus (Helophilus) fasciatus Walker, 1849 | Largeflower milkweed |
| Helophilus (Helophilus) groenlandicus Fabricius, 1780 | |
| Helophilus (Helophilus) hybridus Loew, 1846 | |
| Helophilus (Helophilus) intentus Curran & Fluke, 1926 | |
| Helophilus (Helophilus) lapponicus Wahlberg, 1844 | |
| Helophilus (Helophilus) latifrons (Loew, 1863) | ⇒ Helophilus hochstetteri Nowicki, 1875 |
| Helophilus (Helophilus) neoaffinis Fluke, 1949 | |
| Helophilus (Helophilus) obscurus Loew, 1863 | Copper mallow |
| Helophilus (Helophilus) parallelus (Harris, 1776) | ⇒ Heringia heringi Zetterstedt, 1843 |
| Helophilus (Helophilus) pendulus Linnaeus, 1758 | |
| Helophilus (Helophilus) trivittatus Fabricius, 1805 | |
| Helophilus (Pilinasica) hochstetteri Nowicki, 1875 | Metallic blue hoverfly |
| Helophilus alaskensis (Fluke, 1949) | ⇒ Helophilus bottnicus Wahlberg, 1844 |
| Helophilus anniae (Brimley, 1923) | ⇒ Parhelophilus flavifacies Bigot, 1883 |
| Helophilus billinearis (Williston, 1887) | ⇒ Lejops billinearis Williston, 1887 |
| Helophilus borealis (Staeger, 1845) | ⇒ Helophilus affinis Wahlberg, 1844 |
| Helophilus colei (Wirth, 1965) | ⇒ Lejops borealis Cole, 1921 |
| Helophilus conostomus (Williston, 1887) | ⇒ Lejops lineatus Fabricius, 1787 |
| Helophilus cooleyi Seamans, 1917 | |
| Helophilus distinctus (Williston, 1887) | ⇒ Lejops distinctus Williston, 1887 |
| Helophilus divisus (Loew, 1863) | ⇒ Parhelophilus divisus Loew, 1863 |
| Helophilus laetus (Loew, 1863) | ⇒ Parhelophilus laetus Loew, 1963 |
| Helophilus lunulatus (Meigen, 1822) | ⇒ Anasimyia lunulata Meigen, 1822 |
| Helophilus modestus (Williston, 1887) | ⇒ Helophilus cooleyi Seamans, 1917 |
| Helophilus polygrammus (Loew, 1872) | ⇒ Lejops polygrammus Loew, 1872 |
| Helophilus stipatus (Walker, 1849) | ⇒ Lejops lineatus Fabricius, 1787 |
| Heringia (Heringia) heringi Zetterstedt, 1843 | |
| Heringia (Neocnemodon) calcarata Loew, 1866 | Butte County checkerbloom |
| Heringia albipleura Curran, 1921 | |
| Heringia auripleura Curran, 1921 | |
| Heringia californica Davidson, 1917 | |
| Heringia canadensis Curran, 1921 | |
| Heringia carinata Curran, 1921 | |
| Heringia cevelata Curran, 1921 | |
| Heringia corvallis Curran, 1921 | |
| Heringia coxalis Curran, 1921 | |
| Heringia intensica Curran, 1921 | |
| Heringia lovetti Curran, 1921 | |
| Heringia myerma Curran, 1921 | |
| Heringia nudifrons Curran, 1921 | |
| Heringia ontarioensis Curran, 1921 | |
| Heringia pisticoides Williston, 1887 | |
| Heringia placida Curran, 1921 | |
| Heringia rita Curran, 1921 | |
| Heringia salax Loew, 1866 | |
| Heringia sinousa Curran, 1921 | |
| Heringia squamulae Curran, 1921 | |
| Heringia trochanterata Malloch, 1918 | |
| Hiatomyia canadensis Shannon, 1922 | |
| Hiatomyia chionthrix Hull & Fluke, 1950 | |
| Hiatomyia chrysothrix Hull & Fluke, 1950 | |
| Hiatomyia coriacea Hull & Fluke, 1950 | |
| Hiatomyia cyanea Hunter, 1896 | |
| Hiatomyia cyanescens Loew, 1863 | |
| Hiatomyia gemini Shannon, 1922 | |
| Hiatomyia hecate Hull & Fluke, 1950 | |
| Hiatomyia hyacintha Hull & Fluke, 1950 | |
| Hiatomyia idahoa Shannon, 1922 | |
| Hiatomyia nigrocyanea Hull & Fluke, 1950 | |
| Hiatomyia niveifrons Hull & Fluke, 1950 | |
| Hiatomyia nyctichroma Hull & Fluke, 1950 | |
| Hiatomyia olivia Hull & Fluke, 1950 | |
| Hiatomyia plumosa Coquillett, 1904 | |
| Hiatomyia plutonia Hunter, 1897 | |
| Hiatomyia robroflava | |
| Hiatomyia rubroflava Hull & Fluke, 1950 | |
| Hiatomyia signatiseta Hunter, 1896 | |
| Hiatomyia tessa Hull & Fluke, 1950 | |
| Hiatomyia townsendi Hunter, 1896 | |
| Hiatomyia willistoni Snow, 1895 | |
| Lejops (Anasimyia) bilinearis Williston, 1887 | |
| Lejops (Anasimyia) chrysostomus Wiedemann, 1830 | |
| Lejops (Anasimyia) lineatus Fabricius, 1787 | |
| Lejops (Anasimyia) perfidiosus Hunter, 1897 | |
| Lejops (Anasimyia) willingii Smith, 1912 | |
| Lejops (Asemosyrphus) polygrammus Loew, 1872 | |
| Lejops (Polydontomyia) curvipes Wiedemann, 1830 | |
| Lejops billinearis Williston, 1887 | |
| Lejops borealis Cole, 1921 | |
| Lejops cooleyi Seamans, 1917 | |
| Lejops distinctus Williston, 1887 | |
| Lejops grisescens Hull, 1943 | Pungent oak |
| Lejops lunulatus Meigen, 1822 | |
| Lejops mexicanus Macquart, 1842 | |
| Lejops relictus (Curran & Fluke, 1926) | ⇒ Lejops chrysostomus Wiedemann, 1830 |
| Lejota aerea Loew, 1872 | |
| Lejota cyanea Smith, 1912 | |
| Lepidomyia micheneri Fluke, 1953 | |
| Mallota albipes Snow, 1895 | |
| Mallota albipilis (Snow, 1895) | ⇒ Mallota albipes Snow, 1895 |
| Mallota bautias Walker, 1849 | Bare-Eyed Bee-Mimic Fly |
| Mallota bequaerti Hull, 1956 | |
| Mallota cimbiciformis Fallen, 1817 | |
| Mallota eristaliformis Sack, 1910 | Syrphid fly |
| Mallota flavoterminata (Jones, 1917) | ⇒ Mallota bautias Walker, 1849 |
| Mallota florea Linnaeus, 1758 | |
| Mallota inversa Shannon, 1927 | |
| Mallota palmerae (Jones, 1917) | ⇒ Mallota albipes Snow, 1895 |
| Mallota posticata Fabricius, 1805 | Hairy-Eyed Bee-Mimic Fly |
| Mallota powelli (Nayar & Cole, 1968) | ⇒ Sericomyia flagrans Osten-sacken, 1875 |
| Mallota rubicunda Curran, 1940 | |
| Mallota sackeni Williston, 1882 | Whorled clustervine |
| Merapioidus villosus Bigot, 1879 | |
| Merodon equestris Fabricius, 1794 | Greater Bulb-Fly |
| Meromacrus acutus Fabricius, 1805 | |
| Meromacrus anna Curran, 1936 | |
| Meromacrus croceatus Hull, 1960 | Robust oak |
| Meromacrus gloriosus Hull, 1941 | Dwarf chinkapin oak |
| Meromacrus ruficrus Wiedemann, 1830 | |
| Milesia bella Townsend, 1897 | Chapman's milkwort |
| Milesia fulvifrons Bigot, 1884 | |
| Milesia pulchra Williston, 1892 | |
| Milesia quadrata Scudder, 1878 | |
| Milesia scutellata Hull, 1924 | Organ oak |
| Milesia tachina (Yang & Cheng, 1998) | ⇒ Milesia cretosa Hippa, 1990 |
| Milesia virginiensis Drury, 1773 | Virginia Flower Fly |
| Myathropa florea Linnaeus, 1758 | |
| Myolepta auricaudata Williston, 1891 | |
| Myolepta aurinota Hine, 1903 | |
| Myolepta camillae Weems, 1956 | Jerusalem cherry |
| Myolepta lunulata Bigot, 1883 | |
| Myolepta nigra Loew, 1872 | |
| Myolepta strigilata Loew, 1872 | |
| Myolepta varipes Loew, 1869 | |
| Nausigaster clara Curran, 1941 | |
| Nausigaster curvinervis Curran, 1941 | |
| Nausigaster geminata Townsend, 1897 | Chapman's milkwort |
| Nausigaster nova Curran, 1941 | |
| Nausigaster punctulata Williston, 1883 | |
| Nausigaster scutellaris Adams, 1904 | |
| Nausigaster texana Curran, 1941 | |
| Nausigaster unimaculata Townsend, 1897 | Chapman's milkwort |
| Neoascia (Neoascia) nasuta Bigot, 1883 | |
| Neoascia (Neoascia) quadrinotata Bigot, 1883 | |
| Neoascia (Neoascia) tenur Harris, 1780 | |
| Neoascia (Neoasciella) distincta Williston, 1887 | Beach clustervine |
| Neoascia (Neoasciella) geniculata Meigen, 1822 | |
| Neoascia (Neoasciella) globosa Walker, 1849 | |
| Neoascia (Neoasciella) metallica Williston, 1882 | |
| Neoascia (Neoasciella) meticulosa Scopoli, 1763 | |
| Neoascia (Neoasciella) sphaerophoria Curran, 1925 | |
| Neoascia conica (Curran, 1925) | ⇒ Neoascia geniculata Meigen, 1822 |
| Neoascia macrofemoralis (Curran, 1925) | ⇒ Neoascia geniculata Meigen, 1822 |
| Neoascia minuta (Curran, 1925) | ⇒ Neoascia metallica Williston, 1882 |
| Neocnemodon buka (Violovitsh, 1978) | ⇒ Trichopsomyia flavitarsis Meigen, 1822 |
| Odyneromyia transparens Paramonov, 1955 | |
| Ornidia major Curran, 1930 | |
| Ornidia obesa Fabricius, 1775 | Syrphid fly |
| Orthonevra anniae Sedman, 1966 | |
| Orthonevra bellula Williston, 1882 | |
| Orthonevra flukei Sedman, 1964 | |
| Orthonevra minuta Hull, 1945 | |
| Orthonevra nigrovittata Loew, 1876 | |
| Orthonevra nitida Wiedemann, 1830 | Wavy Mucksucker |
| Orthonevra nitidula Curran, 1925 | |
| Orthonevra nobilis Fallen, 1817 | |
| Orthonevra parva Shannon, 1916 | |
| Orthonevra pictipennis Loew, 1863 | |
| Orthonevra pulchella Williston, 1887 | |
| Orthonevra robusta Shannon, 1916 | |
| Orthonevra sinuosa Bigot, 1884 | |
| Orthonevra sonorensis Shannon, 1964 | |
| Orthonevra stigmata Williston, 1882 | |
| Orthonevra unicolor Shannon, 1916 | |
| Orthonevra weemsi Sedman, 1966 | |
| Orthoprosopa (Orthoprosopa) grisea Walker, 1835 | |
| Palpada agrorum Fabricius, 1787 | |
| Palpada albifrons Wiedemann, 1830 | |
| Palpada alhambra Hull, 1925 | |
| Palpada expicta Walker, 1860 | |
| Palpada florea Hull, 1925 | |
| Palpada furcata Wiedemann, 1819 | |
| Palpada hortorum Fabricius, 1775 | |
| Palpada mexicana Macquart, 1847 | |
| Palpada minutalis Williston, 1891 | |
| Palpada mitis | |
| Palpada pusilla Macquart, 1842 | |
| Palpada rufiventris Macquart, 1846 | |
| Palpada scutellaris Fabricius, 1805 | |
| Palpada texana Hull, 1925 | |
| Palpada vinetorum Fabricius, 1798 | |
| Parhelophilus brooksi Curran, 1927 | |
| Parhelophilus divisus Loew, 1863 | |
| Parhelophilus flavifacies Bigot, 1883 | |
| Parhelophilus integer Loew, 1963 | |
| Parhelophilus laetus Loew, 1963 | Common Bog Fly |
| Parhelophilus obsoletus Loew, 1863 | |
| Parhelophilus porcus Walker, 1849 | |
| Parhelophilus rex Curran & Fluke, 1922 | Dusky Bog Fly |
| Pelecocera apichaetus Curran, 1923 | |
| Pelecocera pergandei Williston, 1884 | |
| Pelecocera willistoni Snow, 1895 | |
| Pipiza albipilosa (Williston, 1887) | ⇒ Pipiza femoralis Loew, 1866 |
| Pipiza australis (Johnson, 1907) | ⇒ Trichopsomyia australis Johnson, 1907 |
| Pipiza calcarata (Loew, 1866) | ⇒ Heringia calcarata Loew, 1866 |
| Pipiza californica (Davidson, 1917) | ⇒ Heringia californica Davidson, 1917 |
| Pipiza crassipes Bigot, 1883 | |
| Pipiza cribbeni Coovert, 1996 | |
| Pipiza davidsoni Curran, 1921 | |
| Pipiza distincta Curran, 1921 | |
| Pipiza femoralis Loew, 1866 | Scarlet globemallow |
| Pipiza grandifemoralis (Curran, 1921) | ⇒ Pipiza crassipes Bigot, 1883 |
| Pipiza macrofemoralis Curran, 1921 | |
| Pipiza melanderi ♰ F. M. Hull, 1945 | |
| Pipiza nigribarba (Loew, 1866) | ⇒ Trichopsomyia apisaon Walker, 1849 |
| Pipiza nigripilosa Williston, 1887 | Beach clustervine |
| Pipiza pistacoicia | |
| Pipiza pistica (Williston, 1887) | ⇒ Heringia salax Loew, 1866 |
| Pipiza puella Williston, 1887 | Beach clustervine |
| Pipiza pulchella (Williston, 1887) | ⇒ Trichopsomyia apisaon Walker, 1849 |
| Pipiza quadrimaculata Panzer, 1804 | Four-Spotted Pipiza |
| Pipiza salax (Loew, 1866) | ⇒ Heringia salax Loew, 1866 |
| Pipizella australis Johnson, 1907 | |
| Pipizella banksi (Curran, 1921) | ⇒ Trichopsomyia banksi Curran, 1921 |
| Pipizella nigritarsis (Curran, 1924) | ⇒ Trichopsomyia nigritarsis Curran, 1924 |
| Pipizella similis (Curran, 1924) | ⇒ Trichopsomyia similis Curran, 1924 |
| Platynochaetus setosus Fabricius, 1794 | |
| Pocota alopex (Osten Sacken, 1877) | ⇒ Brachypalpus alopex Osten Sacken, 1877 |
| Pocota bomboides Hunter, 1897 | Chinkapin |
| Pocota hyrcanica Gilasian, Vu..., 2017 | |
| Pocota personata Harris, 1780 | |
| Polybiomyia bellardii (Shannon, 1925) | ⇒ Ceriana bellardii Shannon, 1925 |
| Polybiomyia engelhardti (Shannon, 1925) | ⇒ Ceriana engelhardti Shannon, 1925 |
| Polybiomyia sayi (Shannon, 1925) | ⇒ Ceriana sayi Shannon, 1925 |
| Polydontomyia curvipes Wiedemann, 1830 | |
| Psilota bicolor Young, 2020 | |
| Psilota buccata Macquart, 1842 | |
| Psilota coerulea Macquart, 1846 | |
| Psilota femoralis Schiner, 1868 | |
| Psilota flavidipennis Macquart, 1855 | Bur gherkin |
| Psilota klymkoi Locke, Young..., 2019 | |
| Psilota tabidosa ♰ S. H. Scudder, 1890 | |
| Psilota thatuna Shannon, 1922 | Heartleaf suncup |
| Pterallastes thoracicus Loew, 1863 | Copper mallow |
| Pyritis kincaidii Coquillett, 1895 | |
| Rhingia campestris Meigen, 1822 | Heineken Hoverfly |
| Rhingia nasica Say, 1823 | American Snout Fly |
| Rhingia pulcherrima Bezzi, 1908 | |
| Rhingia zephyrea ♰ F. M. Hull, 1945 | |
| Senaspis haemorrhoa Gerstaecker, 1871 | |
| Senogaster comstocki (Williston, 1882) | ⇒ Senogaster dentipes Fabricius, 1787 |
| Senogaster dentipes Fabricius, 1787 | |
| Sericomyia (Sericomyia) bifasciata Williston, 1887 | Beach clustervine |
| Sericomyia (Sericomyia) chalcopyga Loew, 1863 | Copper mallow |
| Sericomyia (Sericomyia) chrysotoxoides Macquart, 1842 | Mountain melonleaf |
| Sericomyia (Sericomyia) flagrans Osten-sacken, 1875 | |
| Sericomyia (Sericomyia) lata Coquillett, 1907 | White-Spotted Pond Fly |
| Sericomyia (Sericomyia) militaris Walker, 1849 | Largeflower milkweed |
| Sericomyia (Sericomyia) sexfasciata Walker, 1849 | Largeflower milkweed |
| Sericomyia (Sericomyia) transversa Osburn, 1926 | |
| Sericomyia (Sericomyia) vockerothi Skevington, 2012 | |
| Sericomyia arctica Schirmer, 1913 | Erect seaberry |
| Sericomyia calcarata (Curran, 1923) | ⇒ Sericomyia militaris Walker, 1849 |
| Sericomyia carolinensis Metcalf, 1917 | |
| Sericomyia cynocephala (Hine, 1922) | ⇒ Sericomyia tolli Frey, 1915 |
| Sericomyia harveyi Osburn, 1908 | |
| Sericomyia nigra Portschinsky, 1873 | Browse milkvetch |
| Sericomyia slossonae Curran, 1934 | |
| Sericomyia tolli Frey, 1915 | |
| Solenaspis hyalinipennis | |
| Solenaspis pulchella Macquart, 1846 | |
| Solenaspis singularis | |
| Solenaspis smaradgi Walker, 1849 | |
| Somula decora Macquart, 1847 | Spotted Wood Fly |
| Somula marivirginiae (Brimley, 1923) | ⇒ Somula mississippiensis Hull, 1922 |
| Somula mississippiensis Hull, 1922 | Mexican blue oak |
| Sphecomyia brevicornis Osten Sacken, 1877 | |
| Sphecomyia calorhina Bigot, 1883 | |
| Sphecomyia cryptica Moran, 2019 | |
| Sphecomyia dyari Shannon, 1925 | Beach suncup |
| Sphecomyia fusca Weisman, 1964 | Riedle's nightshade |
| Sphecomyia nasica Osburn, 1908 | Kanawao |
| Sphecomyia occidentalis Osburn, 1908 | Kanawao |
| Sphecomyia oraria Moran, 2019 | |
| Sphecomyia pattonii Williston, 1882 | Whorled clustervine |
| Sphecomyia vittata Wiedemann, 1830 | Long-Horned Yellowjacket Fly |
| Sphecomyia weismani Moran, 2019 | |
| Sphegina (Asiosphegina) obscura ♰ F. M. Hull, 1945 | |
| Sphegina (Sphegina) albipes Bigot, 1883 | |
| Sphegina (Sphegina) elegans Schummel, 1843 | Sphegina kimakowiczi |
| Sphegina (Sphegina) spheginea Zetterstedt, 1838 | |
| Sphegina appalachiensis Coovert, 1977 | |
| Sphegina armatipes Malloch, 1922 | |
| Sphegina biannulata Malloch, 1922 | |
| Sphegina brachygaster Hull, 1935 | Thick-Waisted Hammertail |
| Sphegina bridwelli Cole, 1924 | |
| Sphegina brimleyi (Shannon, 1940) | ⇒ Sphegina brachygaster Hull, 1935 |
| Sphegina californica Malloch, 1922 | |
| Sphegina campanulata Robertson, 1901 | Knotted clover |
| Sphegina flavimana Malloch, 1922 | |
| Sphegina flavomaculata Malloch, 1922 | |
| Sphegina infuscata Loew, 1863 | Copper mallow |
| Sphegina keeniana Williston, 1887 | Beach clustervine |
| Sphegina lobata Loew, 1863 | Copper mallow |
| Sphegina lobulifera Malloch, 1922 | Black-Lobed Pufftail |
| Sphegina melanderi (Cole, 1924) | ⇒ Sphegina albipes Bigot, 1883 |
| Sphegina monticola (Malloch, 1922) | ⇒ Sphegina lobata Loew, 1863 |
| Sphegina nigrimana Cole, 1924 | |
| Sphegina occidentalis Malloch, 1922 | |
| Sphegina petiolata Coquillett, 1910 | |
| Sphegina punctata Cole, 1921 | |
| Sphegina rufa (Malloch, 1922) | ⇒ Sphegina armatipes Malloch, 1922 |
| Sphegina rufiventris (Loew, 1863) | ⇒ Sphegina spheginea Zetterstedt, 1838 |
| Sphegina ruta | |
| Sphiximorpha ancoralis (Coquillett, 1902) | ⇒ Ceriana tridens Loew, 1872 |
| Sphiximorpha willistoni Kahl, 1897 | |
| Spilomyia alcimus Walker, 1849 | Broad-Banded Hornet Fly |
| Spilomyia citima Vockeroth, 1958 | Lesser fringed gentian |
| Spilomyia crandalli Curran, 1951 | |
| Spilomyia foxleei Vockeroth, 1958 | Lesser fringed gentian |
| Spilomyia fusca Loew, 1864 | Bald-Faced Hornet Fly |
| Spilomyia hamifera (Loew, 1864) | ⇒ Spilomyia alcimus Walker, 1849 |
| Spilomyia interrupta Williston, 1882 | Whorled clustervine |
| Spilomyia kahli Snow, 1895 | |
| Spilomyia liturata Williston, 1887 | Beach clustervine |
| Spilomyia longicornis Loew, 1872 | Eastern Hornet Fly |
| Spilomyia sayi Goot, 1964 | Four-Lined Hornet Fly |
| Spilomyia texana (Johnson, 1921) | ⇒ Spilomyia alcimus Walker, 1849 |
| Sterphus andicus Hippa, 1978 | |
| Sterphus chloropyga Schiner, 1868 | |
| Sterphus plagiatus Wiedemann, 1830 | |
| Sterphus rufoabdominalis Zumbado, 1997 | |
| Syritta aenigmatopatria Hardy, 1964 | Aridland peperomia |
| Syritta fasciata Wiedemann, 1830 | |
| Syritta flaviventris Macquart, 1842 | Mountain melonleaf |
| Syritta hackeri Klocker, 1924 | Syrphid fly |
| Syritta indica Wiedemann, 1824 | |
| Syritta oceanica Macquart, 1855 | Desert starvine |
| Syritta orientalis Macquart, 1842 | Desert starvine |
| Syritta pipiens Linnaeus, 1758 | Hover Fly |
| Temnostoma alternans Loew, 1864 | Wasp-Like Falsehorn |
| Temnostoma balyras Walker, 1849 | Yellow-Haired Falsehorn |
| Temnostoma barberi Shannon, 1939 | Bare-Bellied Falsehorn |
| Temnostoma bombylans Fabricius, 1805 | |
| Temnostoma daochus Walker, 1849 | |
| Temnostoma excentrica Harris, 1862 | |
| Temnostoma excentricum Harris, 1862 | Black-Spotted Falsehorn |
| Temnostoma greenei (Shannon, 1939) | ⇒ Temnostoma daochus Walker, 1849 |
| Temnostoma obscurum Loew, 1864 | |
| Temnostoma pictulum (Williston, 1887) | ⇒ Temnostoma daochus Walker, 1849 |
| Temnostoma trifasciatum Robertson, 1901 | |
| Temnostoma venustum Williston, 1887 | Beach clustervine |
| Temnostoma vespiforme Linnaeus, 1758 | |
| Teuchocnemis bacuntius Walker, 1849 | |
| Teuchocnemis lituratus Loew, 1863 | |
| Trichopsomyia apisaon Walker, 1849 | Largeflower milkweed |
| Trichopsomyia australis Johnson, 1907 | |
| Trichopsomyia banksi Curran, 1921 | |
| Trichopsomyia flavitarsis Meigen, 1822 | |
| Trichopsomyia litoralis Vockeroth, 1988 | Campanilla amarilla |
| Trichopsomyia nigritarsis Curran, 1924 | |
| Trichopsomyia occidentalis Townsend, 1897 | |
| Trichopsomyia pubescens Loew, 1863 | |
| Trichopsomyia recedens Walker, 1852 | |
| Trichopsomyia rufithoracica Curran, 1921 | |
| Trichopsomyia similis Curran, 1924 | |
| Triglyphus fulvicornis Bigot, 1884 | |
| Triglyphus pubescens (Loew, 1863) | ⇒ Trichopsomyia pubescens Loew, 1863 |
| Tropidia albistylum Macquart, 1847 | Watermelon |
| Tropidia calcarata Williston, 1887 | Beach clustervine |
| Tropidia calcarota | |
| Tropidia coloradensis Bigot, 1883 | |
| Tropidia cooleyi (Seamans, 1917) | ⇒ Lejops cooleyi Seamans, 1917 |
| Tropidia dicentria (Speiser, 1913) | ⇒ Tropidia longa Walker, 1849 |
| Tropidia incana Townsend, 1895 | California milkwort |
| Tropidia mamillata Loew, 1861 | |
| Tropidia montana Hunter, 1896 | Allegheny chinkapin |
| Tropidia nigricornis (Philippi, 1865) | ⇒ Tropidia montana Hunter, 1896 |
| Tropidia pygmaea Shannon, 1926 | Beach suncup |
| Tropidia quadrata Say, 1824 | Common Thick-Legged Fly |
| Tropidia tumlata Lewis, 1973 | |
| Tropidia tumulata ♰ (S. E. Lewis, 1973) | ⇒ Tropidia tumlata Lewis, 1973 |
| Volucella anna (Williston, 1887) | ⇒ Copestylum anna Williston, 1887 |
| Volucella avida (Osten Sacken, 1877) | ⇒ Copestylum avidum Osten Sacken, 1877 |
| Volucella bombylans Linnaeus, 1758 | Bumble Bee Hover Fly |
| Volucella comstocki (Williston, 1887) | ⇒ Copestylum comstocki Williston, 1887 |
| Volucella evecta (Walker, 1852) | ⇒ Volucella bombylans Linnaeus, 1758 |
| Volucella facialis (Williston, 1882) | ⇒ Volucella bombylans Linnaeus, 1758 |
| Volucella fasciata (Verrall, 1901) | ⇒ Copestylum vitttatum Thompson, 1976 |
| Volucella furens (Giglio-Tos, 1892) | ⇒ Copestylum furens Giglio-Tos, 1892 |
| Volucella isabellina (Williston, 1887) | ⇒ Copestylum isabellina Williston, 1887 |
| Volucella kincaidii (Coquillett, 1895) | ⇒ Pyritis kincaidii Coquillett, 1895 |
| Volucella mexicana (Macquart, 1842) | ⇒ Copestylum mexicanum Macquart, 1842 |
| Volucella nigra (Greene, 1923) | ⇒ Copestylum mexicanum Macquart, 1842 |
| Volucella rufomaculata (Linnaeus, 1758) | ⇒ Volucella bombylans Linnaeus, 1758 |
| Volucella satur (Osten Sacken, 1877) | ⇒ Copestylum satur Osten Sacken, 1877 |
| Volucella tricincta (Bigot, 1875) | ⇒ Eristalis arbustorum Linnaeus, 1758 |
| Volucella vesiculana (Curran, 1947) | ⇒ Copestylum opalescens Townsend, 1901 |
| Volucella victoria (Williston, 1887) | ⇒ Copestylum victoria Williston, 1887 |
| Volucella zonaria Poda, 1761 | Belted Hoverfly |
| Xylota (Ameroxylota) barbata Loew, 1864 | |
| Xylota (Ameroxylota) ejuncida Say, 1824 | |
| Xylota (Ameroxylota) flavitibia Bigot, 1883 | |
| Xylota (Ameroxylota) flukei Curran, 1941 | |
| Xylota (Ameroxylota) segnis Linnaeus, 1758 | Brown-Toed Forest Fly |
| Xylota (Xylota) annulifera Bigot, 1883 | |
| Xylota (Xylota) quadrimaculata Loew, 1866 | Scarlet globemallow |
| Xylota analis Williston, 1887 | Beach clustervine |
| Xylota angustiventris Loew, 1866 | Scarlet globemallow |
| Xylota argoi Shannon, 1926 | Beach suncup |
| Xylota aristata (Johnson, 1929) | ⇒ Chalcosyrphus aristatus Johnson, 1929 |
| Xylota azurea Fluke, 1953 | |
| Xylota bicolor Loew, 1864 | |
| Xylota chalybea (Wiedemann, 1830) | ⇒ Chalcosyrphus chalybeus Wiedemann, 1830 |
| Xylota confusa Shannon, 1926 | Beach suncup |
| Xylota dubia | |
| Xylota ejuncidae-elongata | |
| Xylota facialis (Coquillett, 1910) | ⇒ Chalcosyrphus anthreas Walker, 1849 |
| Xylota flavifrons Walker, 1849 | Largeflower milkweed |
| Xylota hinei Curran, 1941 | |
| Xylota lovetti Curran, 1925 | |
| Xylota marginalis (Williston, 1887) | ⇒ Chalcosyrphus libo Walker, 1849 |
| Xylota micrura Curran, 1941 | |
| Xylota naknek Shannon, 1926 | Beach suncup |
| Xylota nebulosa Johnson, 1921 | Michaux's stitchwort |
| Xylota nigra (Walker, 1849) | ⇒ Chalcosyrphus piger Fabricius, 1794 |
| Xylota nigromaculata (Jones, 1917) | ⇒ Chalcosyrphus nigromaculatus Jones, 1917 |
| Xylota notha (Williston, 1887) | ⇒ Xylota subfasciata Loew, 1866 |
| Xylota ouelleti Curran, 1941 | |
| Xylota pigoa | |
| Xylota rainieri (Shannon, 1926) | ⇒ Xylota analis Williston, 1887 |
| Xylota scutellarmata Lovett, 1919 | Frog's-britches |
| Xylota stenogaster Williston, 1892 | |
| Xylota subfasciata Loew, 1866 | Scarlet globemallow |
| Xylota tuberans (Williston, 1887) | ⇒ Myolepta nigra Loew, 1872 |
| Xylota tuberculata Curran, 1941 | |
| Xylota vecors (Osten Sacken, 1875) | ⇒ Chalcosyrphus vecors Osten Sacken, 1875 |
| Xylota viridaenea (Shannon, 1926) | ⇒ Xylota ejuncida Say, 1824 |
