| Acadia polypori (Vockeroth, 1980) | ⇒ Impleta polypori Vockeroth, 1980 |
| Acnemia arizonensis Zaitzev, 1982 | Great Basin langloisia |
| Acnemia bifida Zaitzev, 1982 | Great Basin langloisia |
| Acnemia californiensis Zaitzev, 1982 | Great Basin langloisia |
| Acnemia comata Zaitzev, 1982 | Great Basin langloisia |
| Acnemia fisherae Zaitzev, 1982 | Great Basin langloisia |
| Acnemia flaveola Coquillett, 1901 | |
| Acnemia johannseni Zaitzev, 1982 | Great Basin langloisia |
| Acnemia psylla Loew, 1869 | Juniper globemallow |
| Acnemia similis Zaitzev, 1982 | Great Basin langloisia |
| Acnemia trifida Zaitzev, 1982 | Great Basin langloisia |
| Acnemia unica Zaitzev, 1982 | Great Basin langloisia |
| Acnemia varipennis Coquillett, 1904 | |
| Acnemia vockerothi Zaitzev, 1989 | |
| Acomoptera plexipus Garrett, 1925 | |
| Adicroneura biocellata Vockeroth, 1980 | |
| Aglaomyia gatineau Vockeroth, 1980 | |
| Allocotocera parvulus Coquillett, 1901 | |
| Anaclileia vockerothi Bechev, 1990 | |
| Baeopterogyna nudipes Vockeroth, 1972 | |
| Boletina abdominalis Adams, 1903 | |
| Boletina akpatokensis Edwards, 1933 | |
| Boletina antica Garrett, 1924 | |
| Boletina antoma Garrett, 1924 | |
| Boletina arctica Holmgren, 1872 | |
| Boletina atra (Cole, 1921) | ⇒ Boletina subatra Fisher, 1938 |
| Boletina birulai Lundström, 1915 | Northern bog violet |
| Boletina crassicauda Van Duzee, 1928 | Parish's yampah |
| Boletina delicata Johannsen, 1912 | |
| Boletina differens Garrett, 1924 | |
| Boletina gracilis Johannsen, 1912 | |
| Boletina groenlandica Staeger, 1845 | Darlington's glade spurge |
| Boletina hopkinsii Coquillett, 1895 | |
| Boletina imitator Johannsen, 1912 | |
| Boletina inops Coquillett, 1900 | |
| Boletina jucunda Garrett, 1924 | |
| Boletina longicornis ♰ Johannsen, 1912 | |
| Boletina magna Garrett, 1925 | |
| Boletina melancholica Johannsen, 1912 | |
| Boletina montana Garrett, 1924 | |
| Boletina nacta Johannsen, 1912 | |
| Boletina notescens Johannsen, 1912 | |
| Boletina obesula Johannsen, 1912 | |
| Boletina obscura Johannsen, 1912 | |
| Boletina oviducta Garrett, 1924 | |
| Boletina profectus Shaw & Fisher, 1952 | Small evening primrose |
| Boletina punctus Garrett, 1925 | |
| Boletina sciarina Staeger, 1840 | Blue weed |
| Boletina sedula Johannsen, 1912 | |
| Boletina shermani Garrett, 1924 | |
| Boletina sobria Johannsen, 1912 | |
| Boletina subatra Fisher, 1938 | |
| Boletina tricincta Loew, 1869 | Juniper globemallow |
| Boletina unusa Garrett, 1924 | |
| Coelophthinia curta Johannsen, 1912 | |
| Coelosia gracilis Johannsen, 1912 | |
| Coelosia lepida Johannsen, 1912 | |
| Coelosia modesta Johannsen, 1912 | |
| Coelosia pygophora Coquillett, 1904 | |
| Coelosia tenella Zetterstedt, 1852 | |
| Coelosia truncata Lundström, 1909 | |
| Docosia aceus Garrett, 1925 | |
| Docosia affinis Garrett, 1925 | |
| Docosia apicula Garrett, 1925 | |
| Docosia defecta Van Duzee, 1928 | Parish's yampah |
| Docosia dialata Van Duzee, 1928 | Parish's yampah |
| Docosia dichroa Loew, 1869 | Juniper globemallow |
| Docosia nebulosa Garrett, 1925 | |
| Docosia nigella Johannsen, 1912 | |
| Docosia nigrita Garrett, 1925 | |
| Docosia nitida Johannsen, 1912 | |
| Docosia obscura Coquillett, 1901 | |
| Docosia paradichroa Fisher, 1937 | Compact conardia moss |
| Docosia similis Garrett, 1925 | |
| Docosia vierecki Garrett, 1925 | |
| Drepanocercus ensifer Vockeroth, 1980 | |
| Dziedzickia fuscipennis Coquillett, 1905 | |
| Dziedzickia longicornis Coquillett, 1901 | |
| Dziedzickia pentastylobia Baxter, 1989 | |
| Dziedzickia polyzona Loew, 1869 | |
| Dziedzickia separata Johannsen, 1912 | |
| Dziedzickia vittata Coquillett, 1901 | |
| Ectrepesthoneura bicolor Coquillett, 1901 | |
| Ectrepesthoneura loffooni Chandler, 1980 | |
| Eudicrana obumbrata Loew, 1869 | Juniper globemallow |
| Garrettella shermani Garrett, 1925 | |
| Gnoriste groenlandica (Lundbeck, 1898) | ⇒ Gnoriste longirostris Siebke, 1863 |
| Gnoriste longirostris Siebke, 1863 | Texas beeblossom |
| Gnoriste macra Johannsen, 1912 | |
| Gnoriste macroides Curran, 1927 | |
| Gnoriste megarrhina Osten Sacken, 1877 | |
| Greenomyia cephala Garrett, 1925 | |
| Greenomyia joculator Laffoon, 1965 | |
| Hadroneura kincaidi Coquillett, 1900 | |
| Hadroneura occidentalis Sherman, 1921 | |
| Hadroneura oregona Cole, 1919 | |
| Hadroneura pullata Coquillett, 1904 | |
| Hadroneura rutila Sherman, 1921 | |
| Impleta polypori Vockeroth, 1980 | |
| Leia bivittata (Say, 1829) | ⇒ Leia picta Meigen, 1818 |
| Leia cincta Coquillett, 1895 | |
| Leia cuneola Adams, 1903 | |
| Leia decora Loew, 1869 | |
| Leia dryas Johannsen, 1912 | |
| Leia hemiata Garrett, 1925 | |
| Leia hyalina Coquillett, 1905 | |
| Leia lineola Adams, 1903 | |
| Leia melaena Loew, 1869 | |
| Leia nigricornis Van Duzee, 1928 | |
| Leia oblectabilis Loew, 1869 | |
| Leia opima Loew, 1869 | |
| Leia picta Meigen, 1818 | |
| Leia plebeja Johannsen, 1912 | |
| Leia striata Williston, 1893 | |
| Leia sublunata Loew, 1869 | |
| Leia varia Walker, 1848 | Ashy milkweed |
| Leia ventralis Say, 1824 | |
| Leia winthemii Lehmann, 1822 | |
| Leptomorphus (Diomonus) nebulosus Walker, 1848 | |
| Leptomorphus (Leptomorphus) walkeri Curtis, 1831 | |
| Leptomorphus bifasciatus Say, 1824 | |
| Leptomorphus hyalinus Coquillett, 1901 | |
| Leptomorphus magnificus Johannsen, 1910 | |
| Leptomorphus subcaerulea Coquillett, 1901 | |
| Leptomorphus ypsilon Johannsen, 1912 | |
| Loicia basifurca Vockeroth, 1980 | |
| Megalopelma glabana Johannsen, 1910 | |
| Megophthalmidia occidentalis Johannsen, 1909 | Panal |
| Monoclona conspicua Zaitzev, 1983 | Prickly gilia |
| Monoclona floridensis Fisher, 1946 | |
| Monoclona furcata Johannsen, 1910 | Carpobrotus |
| Monoclona rufilatera Walker, 1837 | |
| Monoclona simplex Garrett, 1925 | |
| Mycomya (Calomycomya) pulchella Dziedzicki, 1885 | |
| Mycomya (Lycomya) pectinifera Edwards, 1924 | |
| Mycomya (Mycomya) bicolor Dziedzicki, 1885 | |
| Mycomya (Mycomya) cinerascens Macquart, 1826 | |
| Mycomya (Mycomya) danielae Matile, 1972 | Gunnison's rockcress |
| Mycomya (Mycomya) denmax Vaisanen, 1979 | Texas spreadwing |
| Mycomya (Mycomya) fuscata Winnertz, 1863 | Snake River phlox |
| Mycomya (Mycomya) griseovittata Zetterstedt, 1852 | |
| Mycomya (Mycomya) islandica Vaisanen, 1984 | |
| Mycomya (Mycomya) kaurii Vaisanen, 1979 | |
| Mycomya (Mycomya) lambi Edwards, 1941 | |
| Mycomya (Mycomya) leporina Vaisanen, 1984 | |
| Mycomya (Mycomya) levis Dziedzicki, 1885 | |
| Mycomya (Mycomya) maculata Meigen, 1804 | |
| Mycomya (Mycomya) neohyalinata Vaisanen, 1984 | |
| Mycomya (Mycomya) nigricornis (Zetterstedt, 1852) | ⇒ Mycomya pectinifera Edwards, 1924 |
| Mycomya (Mycomya) nitida Zetterstedt, 1852 | |
| Mycomya (Mycomya) polleni Garrett, 1924 | |
| Mycomya (Mycomya) ruficollis Zetterstedt, 1852 | Harkness' flaxflower |
| Mycomya (Mycomya) safena Vaisanen, 1984 | |
| Mycomya (Mycomya) shermani Garrett, 1924 | |
| Mycomya (Mycomya) shewelli Vaisanen, 1984 | |
| Mycomya (Mycomya) sigma Johannsen, 1910 | Carpobrotus |
| Mycomya (Mycomya) subarctica Vaisanen, 1979 | Texas spreadwing |
| Mycomya (Mycomya) terminata Garrett, 1924 | |
| Mycomya (Mycomya) thula Vaisanen, 1984 | |
| Mycomya (Mycomya) trivittata Zetterstedt, 1838 | |
| Mycomya (Mycomya) wankowiczii Dziedzicki, 1885 | |
| Mycomya (Mycomya) winnertzi Dziedzicki, 1885 | |
| Mycomya (Mycomya) woodi Vaisanen, 1984 | |
| Mycomya (Mycomyopsis) affinis (Staeger, 1840) | ⇒ Mycomya fimbriata Meigen, 1818 |
| Mycomya (Mycomyopsis) frequens Johannsen, 1910 | Carpobrotus |
| Mycomya (Mycomyopsis) neolittoralis Vaisanen, 1984 | |
| Mycomya (Mycomyopsis) permixta Vaisanen, 1984 | |
| Mycomya (Neomycomya) fimbriata Meigen, 1818 | |
| Mycomya abegena Vaisanen, 1984 | |
| Mycomya accrescens Vaisanen, 1984 | |
| Mycomya aluco Vaisanen, 1984 | |
| Mycomya amica Vaisanen, 1984 | |
| Mycomya ampla Garrett, 1924 | |
| Mycomya aneura Vaisanen, 1984 | |
| Mycomya angulata Adams, 1903 | |
| Mycomya arcuata Vaisanen, 1984 | |
| Mycomya arnaudi Vaisanen, 1984 | |
| Mycomya atus Garrett, 1924 | |
| Mycomya autumnalis Garrett, 1924 | |
| Mycomya biseriata Loew, 1869 | |
| Mycomya bryanti Vaisanen, 1984 | |
| Mycomya byersi Vaisanen, 1984 | |
| Mycomya calcarata Coquillett, 1904 | |
| Mycomya canoak Vaisanen, 1984 | |
| Mycomya comesa Vaisanen, 1984 | |
| Mycomya cranbrooki Garrett, 1924 | |
| Mycomya dentata Fisher, 1937 | Compact conardia moss |
| Mycomya dichaeta Fisher, 1937 | Compact conardia moss |
| Mycomya difficilis Garrett, 1924 | |
| Mycomya durus Garrett, 1924 | |
| Mycomya echinata Garrett, 1924 | |
| Mycomya electa Vaisanen, 1984 | |
| Mycomya elephas Vaisanen, 1984 | |
| Mycomya esox Vaisanen, 1984 | |
| Mycomya fasciata (Zetterstedt, 1838) | ⇒ Mycomya griseovittata Zetterstedt, 1852 |
| Mycomya fuscipalpis Van Duzee, 1928 | Parish's yampah |
| Mycomya gimmerthali Landrock, 1925 | |
| Mycomya hirticollis Say, 1824 | |
| Mycomya humidus Garrett, 1924 | |
| Mycomya imperatrix Vaisanen, 1984 | |
| Mycomya kiamichii Shaw, 1940 | Lewis River suncup |
| Mycomya littoralis Say, 1824 | |
| Mycomya lividella Vaisanen, 1984 | |
| Mycomya lutealis Vaisanen, 1984 | |
| Mycomya macateei Vaisanen, 1984 | |
| Mycomya magnifica Vaisanen, 1984 | |
| Mycomya marginalis Johannsen, 1910 | Carpobrotus |
| Mycomya matrona Vaisanen, 1984 | |
| Mycomya mendax Johannsen, 1910 | Carpobrotus |
| Mycomya midea Vaisanen, 1984 | |
| Mycomya monosta Vaisanen, 1984 | |
| Mycomya montalba Vaisanen, 1984 | |
| Mycomya muscovita Vaisanen, 1984 | |
| Mycomya mutabilis Sherman, 1921 | Walker's suncup |
| Mycomya nigricauda Adams, 1903 | |
| Mycomya notabilis Staeger, 1840 | |
| Mycomya novagallica Vaisanen, 1984 | |
| Mycomya obliqua Say, 1824 | |
| Mycomya onusta Loew, 1869 | |
| Mycomya oreades Vaisanen, 1984 | |
| Mycomya ostensackeni Vaisanen, 1984 | |
| Mycomya pini Vaisanen, 1984 | |
| Mycomya praeda Vaisanen, 1984 | |
| Mycomya pura Vaisanen, 1984 | |
| Mycomya pyriformis Vaisanen, 1984 | |
| Mycomya rebellicosa Vaisanen, 1984 | |
| Mycomya recurva Johannsen, 1910 | Carpobrotus |
| Mycomya saga Vaisanen, 1984 | |
| Mycomya scopula Fisher, 1937 | Compact conardia moss |
| Mycomya simplex Coquillett, 1905 | |
| Mycomya sphagnicola Shaw, 1941 | Wingfruit suncup |
| Mycomya stares Vaisanen, 1984 | |
| Mycomya sublittoralis Shaw, 1941 | Wingfruit suncup |
| Mycomya tantilla Loew, 1869 | |
| Mycomya triacantha Shaw, 1941 | Wingfruit suncup |
| Mycomya ultima Vaisanen, 1984 | |
| Mycomya unicolor Walker, 1848 | |
| Mycomya wirthi Vaisanen, 1984 | |
| Neoempheria balioptera Loew, 1869 | |
| Neoempheria didyma Loew, 1869 | Juniper globemallow |
| Neoempheria gainesvillensis Khalaf, 1971 | Akulikuli-kula |
| Neoempheria illustris Johannsen, 1910 | Carpobrotus |
| Neoempheria impatiens Johannsen, 1910 | Carpobrotus |
| Neoempheria indulgens Johannsen, 1910 | Carpobrotus |
| Neoempheria macularis Johannsen, 1910 | Carpobrotus |
| Neoempheria nepticula Loew, 1869 | |
| Neuratelia abrevena Garrett, 1925 | |
| Neuratelia coxalis Coquillett, 1905 | |
| Neuratelia desidiosa Johannsen, 1912 | |
| Neuratelia distincta Garrett, 1925 | |
| Neuratelia eminens Johannsen, 1912 | |
| Neuratelia flexa Van Duzee, 1928 | Parish's yampah |
| Neuratelia grandis Garrett, 1925 | |
| Neuratelia insignifica Shaw, 1941 | Wingfruit suncup |
| Neuratelia nemoralis Meigen, 1818 | Fungus gnat |
| Neuratelia obscura Garrett, 1925 | |
| Neuratelia sayi Aldrich, 1897 | |
| Neuratelia scitula Johannsen, 1912 | |
| Neuratelia scituloides Shaw, 1941 | Wingfruit suncup |
| Neuratelia silvatica Johannsen, 1912 | |
| Paratinia recurva Johannsen, 1910 | Carpobrotus |
| Phthinia carolina Loew, 1869 | |
| Phthinia catawbiensis Loew, 1869 | Lewis River suncup |
| Phthinia curta (Johannsen, 1912) | ⇒ Coelophthinia curta Johannsen, 1912 |
| Phthinia lobata Zaitzev, 1984 | California prickly phlox |
| Phthinia miranda Zaitzev, 1984 | California prickly phlox |
| Phthinia tanypus Loew, 1869 | Juniper globemallow |
| Polylepta guttiventris Zetterstedt, 1852 | |
| Polylepta modesta Van Duzee, 1928 | Parish's yampah |
| Polylepta nigellus Johannsen, 1910 | |
| Rondaniella sororcula Loew, 1869 | |
| Saigusaia cincta Johannsen, 1912 | |
| Sciophila acuta Garrett, 1925 | |
| Sciophila adamsi Edwards, 1925 | |
| Sciophila agassis Garrett, 1925 | |
| Sciophila arizonensis Zaitzev, 1982 | Great Basin langloisia |
| Sciophila bicuspidata Zaitzev, 1982 | Great Basin langloisia |
| Sciophila bifida Garrett, 1925 | |
| Sciophila californiensis Zaitzev, 1982 | Great Basin langloisia |
| Sciophila canadensis Zaitzev, 1982 | Great Basin langloisia |
| Sciophila cliftoni Edwards, 1925 | |
| Sciophila conformis Zaitzev, 1982 | Great Basin langloisia |
| Sciophila cordata Zaitzev, 1982 | Great Basin langloisia |
| Sciophila distincta Garrett, 1925 | |
| Sciophila emarginata Zaitzev, 1982 | Great Basin langloisia |
| Sciophila exserta Zaitzev, 1982 | Great Basin langloisia |
| Sciophila fasciata (Say, 1823) | ⇒ Mycomya winnertzi Dziedzicki, 1885 |
| Sciophila fenestella (Curtis, 1837) | ⇒ Sciophila cliftoni Edwards, 1925 |
| Sciophila festiva Zaitzev, 1982 | Great Basin langloisia |
| Sciophila fridolini Stackelberg, 1943 | Petty spurge |
| Sciophila fuliginosa Holmgren, 1883 | |
| Sciophila gagnei Zaitzev, 1982 | Great Basin langloisia |
| Sciophila garretti Zaitzev, 1982 | |
| Sciophila grisea (Walker, 1848) | ⇒ Manota grisea Walker, 1848 |
| Sciophila habilis Johannsen, 1910 | Carpobrotus |
| Sciophila hebes Johannsen, 1910 | Carpobrotus |
| Sciophila hirta (Meigen, 1818) | ⇒ Taxicnemis flava Edwards, 1927 |
| Sciophila impar Johannsen, 1910 | Carpobrotus |
| Sciophila incallida Johannsen, 1910 | Carpobrotus |
| Sciophila insignis Zaitzev, 1982 | Great Basin langloisia |
| Sciophila insueta Zaitzev, 1982 | Great Basin langloisia |
| Sciophila iowensis Zaitzev, 1982 | Great Basin langloisia |
| Sciophila karelica Zaitzev, 1982 | Great Basin langloisia |
| Sciophila laffooni Zaitzev, 1982 | Great Basin langloisia |
| Sciophila longua (Garrett, 1925) | ⇒ Sciophila nitens Winnertz, 1863 |
| Sciophila minuta Zaitzev, 1982 | Great Basin langloisia |
| Sciophila mississippiensis Khalaf, 1971 | Akulikuli-kula |
| Sciophila modesta Zaitzev, 1982 | Great Basin langloisia |
| Sciophila montana Zaitzev, 1982 | Great Basin langloisia |
| Sciophila neohebes Garrett, 1925 | |
| Sciophila nigronitida Landrock, 1925 | Thymeleaf buckwheat |
| Sciophila nitens Winnertz, 1863 | |
| Sciophila nonnisilva Hutson, 1979 | Western paper birch |
| Sciophila notabilis (Zaitzev, 1982) | ⇒ Mycomya wankowiczii Dziedzicki, 1885 |
| Sciophila novata Johannsen, 1910 | Carpobrotus |
| Sciophila ochracea Walker, 1856 | Slimleaf milkweed |
| Sciophila pallipes Say, 1824 | |
| Sciophila parahebes Zaitzev, 1982 | Great Basin langloisia |
| Sciophila pluridentata Zaitzev, 1982 | Great Basin langloisia |
| Sciophila plurisetosa Edwards, 1921 | |
| Sciophila quadratula Loew, 1869 | |
| Sciophila septentrionalis Zaitzev, 1982 | Great Basin langloisia |
| Sciophila setosa Garrett, 1925 | |
| Sciophila severa Johannsen, 1910 | Carpobrotus |
| Sciophila sublimbatella Zaitzev, 1982 | Great Basin langloisia |
| Sciophila vakulenkoi Stackelberg, 1943 | Petty spurge |
| Sciophila vockerothi Zaitzev, 1982 | Great Basin langloisia |
| Speolepta leptogaster Winnertz, 1863 | |
| Stenophragma similis Johannsen, 1910 | |
| Synapha astacys Garrett, 1924 | |
| Synapha bicolor Shaw & Fisher, 1952 | Small evening primrose |
| Synapha disjuncta Garrett, 1925 | |
| Synapha tibialis Coquillett, 1901 | |
| Syntemna hungarica Lundbeck, 1912 | |
| Syntemna immaculata Cole, 1919 | |
| Syntemna vernalis Sherman, 1921 | |
| Taxicnemis flava Edwards, 1927 | |
| Tetragoneura arcuata Sherman, 1921 | Walker's suncup |
| Tetragoneura atra Sherman, 1921 | Walker's suncup |
| Tetragoneura fallax Sherman, 1921 | Walker's suncup |
| Tetragoneura longicauda Van Duzee, 1928 | Parish's yampah |
| Tetragoneura marceda Sherman, 1921 | Walker's suncup |
| Tetragoneura nitida Adams, 1903 | |
| Tetragoneura pimpla Coquillett, 1901 | |
| Tetragoneura quintana Cole, 1921 | |
| Tetragoneura robur Garrett, 1925 | |
| Tetragoneura similis Garrett, 1925 | |
