| Ablautus arnaudi Wilcox, 1966 | Smartweed dodder |
| Ablautus basini Wilcox, 1966 | Smartweed dodder |
| Ablautus californicus Wilcox, 1935 | Harper's dodder |
| Ablautus coachellus Wilcox, 1966 | Smartweed dodder |
| Ablautus colei Wilcox, 1966 | Smartweed dodder |
| Ablautus coquilletti Wilcox, 1935 | Harper's dodder |
| Ablautus flavipes Coquillett, 1904 | |
| Ablautus linsleyi Wilcox, 1966 | Smartweed dodder |
| Ablautus mimus Osten Sacken, 1877 | |
| Ablautus mimus mimus | |
| Ablautus mimus squamipes | |
| Ablautus rubens (Coquillett, 1904) | ⇒ Parataracticus rubens Coquillett, 1904 |
| Ablautus rufotibialis Back, 1909 | |
| Ablautus schlingeri Wilcox, 1966 | Smartweed dodder |
| Ablautus trifarius Loew, 1866 | Scarlet globemallow |
| Ablautus vanduzeei Wilcox, 1935 | Harper's dodder |
| Afromochtherus megastylus Londt, 2002 | |
| Albibarbefferia albibarbis Macquart, 1838 | |
| Albibarbefferia bicolor Bellardi, 1861 | |
| Albibarbefferia grandis Hine, 1919 | |
| Albibarbefferia leucocomus Williston, 1885 | |
| Albibarbefferia peralta Wilcox, 1966 | |
| Albibarbefferia vertebrata Bromley, 1940 | |
| Albibarbefferia zonata Hine, 1919 | |
| Amphisbetetus norrisi Paramonov, 1966 | |
| Amphisbetetus primus Paramonov, 1966 | |
| Amphisbetetus westralicus Paramonov, 1966 | |
| Andrenosoma cinerea Bellardi, 1861 | |
| Andrenosoma dayi Paramonov, 1958 | |
| Andrenosoma erax Bromley, 1934 | |
| Andrenosoma erythrogaster Wiedemann, 1828 | |
| Andrenosoma fulvicaudum Say, 1823 | |
| Andrenosoma hesperium Martin, 1966 | Twisted cleomella |
| Andrenosoma sarcophaga Hermann, 1912 | |
| Apachekolos confusio Martin, 1957 | MacBride cleomella |
| Apachekolos crinita Martin, 1957 | MacBride cleomella |
| Apachekolos scapularis Bigot, 1878 | |
| Apachekolos tenuipes Loew, 1862 | |
| Apoclea conicera Loew, 1856 | |
| Aporema praestrictum ♰ S. H. Scudder, 1890 | |
| Archilestes californica (McLachlan, 1895) | ⇒ Archilestes californicus McLachlan, 1895 |
| Archilestes californicus McLachlan, 1895 | California Spreadwing |
| Archilestes grandis Rambur, 1942 | Great Spreadwing |
| Aridefferia apache Wilcox, 1966 | |
| Aridefferia arida Williston, 1893 | |
| Aridefferia basingeri Wilcox, 1966 | |
| Aridefferia coulei Wilcox, 1966 | |
| Aridefferia harveyi Hine, 1919 | |
| Aridefferia snowi Hine, 1919 | |
| Aridefferia subarida Bromley, 1940 | |
| Aridefferia subpilosa Schaeffer, 1916 | |
| Aridefferia tolandi Wilcox, 1966 | |
| Asilopsis fusculus ♰ T. D. A. Coc..., 1921 | |
| Asilus amelanchieris ♰ Cockerell, 1911 | |
| Asilus astutus (Williston, 1893) | ⇒ Negasilus astutus Williston, 1893 |
| Asilus comosus (Hine, 1918) | ⇒ Neomochtherus comosus Hine, 1918 |
| Asilus curculionis ♰ Melander, 1947 | |
| Asilus delicatula Hine, 1918 | |
| Asilus florissantinus ♰ James, 1939 | |
| Asilus occidentalis (Philippi, 1865) | ⇒ Machimus occidentalis Hine, 1909 |
| Asilus palaeolestes ♰ Cockerell, 1921 | |
| Asilus peritulus ♰ Cockerell, 1909 | |
| Asilus platyceras (Hine, 1922) | ⇒ Negasilus platyceras Hine, 1922 |
| Asilus sackeni (Banks, 1920) | ⇒ Machimus vescus Hine, 1918 |
| Asilus sericeus Say, 1823 | |
| Asilus vescus (Hine, 1918) | ⇒ Machimus vescus Hine, 1918 |
| Asilus wickhami ♰ Cockerell, 1915 | |
| Asiola blasio Walker, 1849 | |
| Asiola lemniscata Daniels, 1977 | |
| Atomosia melanopogon Hermann, 1912 | Long spur columbine |
| Atomosia mucida Osten-sacken, 1887 | |
| Atomosia puella Wiedemann, 1828 | |
| Atomosia pusilla Macquart, 1838 | Melonleaf |
| Atomosiella antennata Banks, 1920 | |
| Bachomyia schlingeri | |
| Backomyia anomala Wilcox & Martin, 1957 | Rope dodder |
| Backomyia hannai Wilcox & Martin, 1957 | Rope dodder |
| Backomyia limpidipennis Wilcox, 1936 | |
| Backomyia schlingeri Wilcox & Martin, 1957 | Rope dodder |
| Backomyia seminoensis Lavigne, 1971 | American waterwort |
| Bathypogon chionthrix Hull, 1958 | |
| Bathypogon cinereus Hull, 1959 | |
| Bathypogon macrodonturus Hull, 1959 | |
| Bathypogon pedanus Walker, 1849 | |
| Bathypogon rubellus Hull, 1956 | |
| Bathypogon tristis White, 1914 | |
| Bathypogon uncinatus Hull, 1956 | |
| Beameromyia bifida Hardy, 1942 | |
| Beameromyia disfascia Martin, 1957 | MacBride cleomella |
| Beameromyia lacinia Martin, 1957 | MacBride cleomella |
| Beameromyia pictipes Loew, 1862 | |
| Beameromyia vulgaris Martin, 1957 | MacBride cleomella |
| Blepharepium borealis James, 1939 | |
| Blepharepium sonorensis Papavero & B..., 1973 | Norwegian cinquefoil |
| Blepharotes coriarius Wiedemann, 1830 | Giant Yellow Robber Fly |
| Blepharotes flavus Ricardo, 1913 | |
| Bohartia bromleyi Hull, 1958 | English oak |
| Bohartia isabella Adisoemarto ..., 1975 | |
| Bohartia martini Adisoemarto ..., 1975 | |
| Bohartia munda Adisoemarto ..., 1975 | |
| Bohartia nitor Adisoemarto ..., 1975 | |
| Brachyrhopala aurimaculata Clements, 2000 | |
| Brachyrhopala danielsi Clements, 2000 | |
| Broticosia calabyi Paramonov, 1964 | |
| Broticosia rapax Hull, 1958 | |
| Callinicus calcaneus Loew, 1872 | Juniper globemallow |
| Callinicus pictitarsis Bigot, 1878 | |
| Callinicus pollenius Cole, 1919 | |
| Callinicus quadrinotatus Bigot, 1878 | |
| Callinicus vittatus Wilcox, 1936 | |
| Carinefferia caliente Wilcox, 1966 | |
| Carinefferia costalis Williston, 1885 | |
| Carinefferia cressoni Hine, 1919 | |
| Carinefferia jubata (Williston, 1885) | ⇒ Efferia jubata Williston, 1885 |
| Carinefferia latruncula Williston, 1885 | |
| Carinefferia subcuprea Schaeffer, 1916 | |
| Carinefferia willistoni Hine, 1919 | |
| Ceraturgopsis praecursor James, 1939 | |
| Ceraturgus cruciatus Say, 1823 | |
| Ceraturgus elizabethae Brimley, 1924 | |
| Ceraturgus fasciatus (Walker, 1849) | ⇒ Ceraturgus cruciatus Say, 1823 |
| Ceraturgus praecursor ♰ James, 1939 | |
| Cerdistus cygnis Dakin & Fordham, 1922 | |
| Cerdistus hudsoni Lavigne, 2011 | |
| Cerdistus maculatus White, 1914 | |
| Cerotainia macrocera Say, 1823 | |
| Cerotainia ornatipes James, 1953 | |
| Cerotainiops abdominalis Brown, 1897 | |
| Cerotainiops kernae Martin, 1959 | Mojave cleomella |
| Cerotainiops lucyae Martin, 1959 | Mojave cleomella |
| Cerotainiops mcclayi Martin, 1959 | Mojave cleomella |
| Cerotainiops omus Pritchard, 1942 | Harrison milk-vetch |
| Cerotainiops wilcoxi Pritchard, 1942 | Harrison milk-vetch |
| Chrysopogon (Von) crabroniformis Von Roeder, 1881 | |
| Chrysopogon albopunctatus Macquart, 1846 | |
| Chrysopogon albosetosus Clements, 1985 | |
| Chrysopogon brunnipes Clements, 1985 | |
| Chrysopogon castaneus Clements, 1985 | |
| Chrysopogon dialeucus Clements, 1985 | |
| Chrysopogon diaphanes Clements, 1985 | |
| Chrysopogon melanorrhinus Clements, 1985 | |
| Chrysopogon micrus Clements, 1985 | |
| Chrysopogon parvus Clements, 1985 | |
| Chrysopogon pilosifacies Clements, 1985 | |
| Chrysopogon rubidipennis White, 1918 | |
| Chrysopogon rufulus White, 1914 | |
| Chrysopogon rutilus Clements, 1985 | |
| Chrysopogon sphecodes Clements, 1985 | |
| Chrysopogon splendidissimus Ricardo, 1912 | |
| Chrysopogon whitei Hull, 1958 | |
| Chrysopogon xanthus Clements, 1985 | |
| Codula occidentalis Clements, 1985 | |
| Coleomyia albula Melander, 1924 | |
| Coleomyia alticola James, 1941 | |
| Coleomyia crumborum Martin, 1953 | Hillman's stinkweed |
| Coleomyia hinei Wilcox & Martin, 1935 | Greater dodder |
| Coleomyia rainieri Wilcox & Martin, 1935 | Greater dodder |
| Coleomyia rubida Martin, 1953 | Hillman's stinkweed |
| Coleomyia sculleni Wilcox & Martin, 1935 | Greater dodder |
| Coleomyia setigera Cole, 1919 | |
| Colepia rufiventris Macquart, 1838 | |
| Comantella cristata Coquillett, 1893 | |
| Comantella fallei Back, 1909 | |
| Comantella pacifica Curran, 1926 | |
| Comantella rotgeri James, 1937 | |
| Cophura albosetosa (Hine, 1908) | ⇒ Cophura scitula Williston, 1883 |
| Cophura antiquella ♰ Cockerell, 1913 | |
| Cophura brevicornis Williston, 1883 | |
| Cophura brevicornis flavus | |
| Cophura brevicornis luteus | |
| Cophura brevicornis melanochaeta | |
| Cophura brevicornis rubidus | |
| Cophura clausa Coquillett, 1893 | |
| Cophura cristatus | |
| Cophura dammersi Wilcox, 1965 | Prairie dodder |
| Cophura dora Pritchard, 1943 | Dana's milkvetch |
| Cophura fergusoni Wilcox, 1965 | Prairie dodder |
| Cophura ferugsoni Wilcox, 1965 | |
| Cophura fisheri Wilcox, 1965 | Prairie dodder |
| Cophura flavus (Wilcox, 1965) | ⇒ Cophura brevicornis Williston, 1883 |
| Cophura fur Williston, 1885 | |
| Cophura getzendaneri Wilcox, 1959 | Peruvian dodder |
| Cophura hennei Wilcox & Martin, 1945 | Bushclover dodder |
| Cophura hurdi Hull, 1960 | Robust oak |
| Cophura luteus (Wilcox, 1965) | ⇒ Cophura brevicornis Williston, 1883 |
| Cophura lutzi (Curran, 1931) | ⇒ Cophura pollinosa Curran, 1930 |
| Cophura luzti Curran, 1931 | |
| Cophura melanochaeta (Williston, 1924) | ⇒ Cophura brevicornis Williston, 1883 |
| Cophura painteri Pritchard, 1943 | Dana's milkvetch |
| Cophura pollinosa Curran, 1930 | |
| Cophura powersi Wilcox, 1965 | Prairie dodder |
| Cophura rozeni Wilcox, 1965 | Prairie dodder |
| Cophura rubidus (Wilcox, 1965) | ⇒ Cophura brevicornis Williston, 1883 |
| Cophura scitula Williston, 1883 | Oval-leaf clustervine |
| Cophura stylosa Curran, 1931 | |
| Cophura tanbarki Wilcox, 1965 | Prairie dodder |
| Cophura timberlakei Wilcox, 1965 | Prairie dodder |
| Cophura tolandi Wilcox, 1959 | Peruvian dodder |
| Cophura trunca Coquillett, 1893 | |
| Cophura vanduzeei Wilcox, 1965 | Prairie dodder |
| Cophura vandykei Wilcox, 1965 | Prairie dodder |
| Cophura vitripennis Curran, 1927 | |
| Ctenodontina baleta Walker, 1849 | |
| Cyrtopogon ablautoides Melander, 1923 | Roadside false madwort |
| Cyrtopogon albifacies Johnson, 1942 | Slender stitchwort |
| Cyrtopogon albifrons Wilcox & Martin, 1936 | Tall dodder |
| Cyrtopogon aldrichi Wilcox & Martin, 1936 | Tall dodder |
| Cyrtopogon anomalus Cole, 1919 | |
| Cyrtopogon auratus Cole, 1919 | |
| Cyrtopogon aurifex Osten-sacken, 1877 | |
| Cyrtopogon auripilosus Wilcox & Martin, 1936 | Tall dodder |
| Cyrtopogon banksi Wilcox & Martin, 1936 | Tall dodder |
| Cyrtopogon basingeri Wilcox & Martin, 1936 | Tall dodder |
| Cyrtopogon bimaculus Walker, 1851 | |
| Cyrtopogon caesius Melander, 1923 | Roadside false madwort |
| Cyrtopogon californicus (Wilcox & Martin, 1936) | ⇒ Cyrtopogon semitarius Melander, 1923 |
| Cyrtopogon callipedilus Loew, 1874 | |
| Cyrtopogon callipedilus nigritarsus | |
| Cyrtopogon culminus Bigot, 1885 | |
| Cyrtopogon curtipennis Wilcox & Martin, 1936 | Tall dodder |
| Cyrtopogon curtistylus Curran, 1923 | |
| Cyrtopogon cymbalista Osten-sacken, 1877 | |
| Cyrtopogon dasyllis Williston, 1893 | |
| Cyrtopogon dasylloides Williston, 1883 | |
| Cyrtopogon dubius Williston, 1883 | |
| Cyrtopogon evidens Osten-sacken, 1877 | |
| Cyrtopogon fallei Back, 1909 | |
| Cyrtopogon fumipennis Wilcox & Martin, 1936 | Tall dodder |
| Cyrtopogon glarealis Melander, 1923 | Roadside false madwort |
| Cyrtopogon hollandi Lavigne & De..., 2019 | |
| Cyrtopogon idahoensis Wilcox & Martin, 1936 | Tall dodder |
| Cyrtopogon infuscatus Cole, 1919 | |
| Cyrtopogon inversus Curran, 1923 | |
| Cyrtopogon jemezi Wilcox & Martin, 1936 | Tall dodder |
| Cyrtopogon leptotarsus Curran, 1923 | |
| Cyrtopogon leucozona Loew, 1874 | |
| Cyrtopogon lineotarsus Curran, 1923 | |
| Cyrtopogon longimanus Loew, 1874 | Emory's globemallow |
| Cyrtopogon martini Lavigne & De..., 2019 | |
| Cyrtopogon montanus (Loew, 1874) | ⇒ Cyrtopogon culminus Bigot, 1885 |
| Cyrtopogon montanus wilcoxi James, 1942 | |
| Cyrtopogon nigritarsus (Wilcox & Martin, 1936) | ⇒ Cyrtopogon callipedilus Loew, 1874 |
| Cyrtopogon nitidus Cole, 1924 | |
| Cyrtopogon nugator Osten-sacken, 1877 | |
| Cyrtopogon perspicax Cole, 1919 | |
| Cyrtopogon planitarsus Wilcox & Martin, 1936 | Tall dodder |
| Cyrtopogon plausor Osten-sacken, 1877 | |
| Cyrtopogon praepes Williston, 1883 | |
| Cyrtopogon princeps Osten-sacken, 1877 | |
| Cyrtopogon profusus Osten-sacken, 1877 | |
| Cyrtopogon pulcher Back, 1909 | |
| Cyrtopogon rainieri Wilcox & Martin, 1936 | Tall dodder |
| Cyrtopogon rattus Osten-sacken, 1877 | |
| Cyrtopogon rejectus Osten-sacken, 1877 | |
| Cyrtopogon rufotarsus Back, 1909 | |
| Cyrtopogon sabroskyi Lavigne & Bu..., 1981 | Waterwort |
| Cyrtopogon semitarius Melander, 1923 | |
| Cyrtopogon semitarius californicus | |
| Cyrtopogon stenofrons Wilcox & Martin, 1936 | Tall dodder |
| Cyrtopogon sudator Osten-sacken, 1877 | |
| Cyrtopogon swezeyi Wilcox & Martin, 1936 | Tall dodder |
| Cyrtopogon thompsoni Cole, 1919 | |
| Cyrtopogon tibialis Coquillett, 1904 | |
| Cyrtopogon vanduzeei Wilcox & Martin, 1936 | Tall dodder |
| Cyrtopogon vandykei Wilcox & Martin, 1936 | Tall dodder |
| Cyrtopogon varipennis (Coquillett, 1904) | ⇒ Eucyrtopogon varipennis Coquillett, 1904 |
| Cyrtopogon wilcoxi James, 1942 | |
| Cyrtopogon willistoni Curran, 1923 | |
| Dakinomyia froggattii Dakin & Fordham, 1922 | |
| Dasylechia atrox Williston, 1883 | |
| Dasyllis astur Osten Sacken, 1877 | |
| Dasypogon quadrinotatus Bigot, 1878 | |
| Dicolonus medius Adisoemarto ..., 1975 | |
| Dicolonus nigricentrus Adisoemarto ..., 1975 | |
| Dicolonus pulchrum (Adisoemarto ..., 1975) | ⇒ Dicolonus sparsipilosus Back, 1909 |
| Dicolonus simplex Loew, 1866 | Scarlet globemallow |
| Dicolonus sparsipilosus Back, 1909 | |
| Dicropaltum alamosae (Martin, 1975) | ⇒ Dicropaltum mesae Tucker, 1907 |
| Dicropaltum mesae Tucker, 1907 | |
| Dicropaltum pawneeae (Martin, 1975) | ⇒ Dicropaltum mesae Tucker, 1907 |
| Dioctria (Dioctria) hyalipennis (Fabricius, 1794) | ⇒ Leptarthrus vitripennis Meigen, 1820 |
| Dioctria (Dioctria) rufipes (De Geer, 1776) | ⇒ Taracticus octopunctatus Say, 1823 |
| Dioctria albicornis Wilcox & Martin, 1941 | Clustered dodder |
| Dioctria florissantina ♰ Cockerell, 1909 | |
| Dioctria henshawi Johnson, 1918 | Howell's stitchwort |
| Dioctria jamesi ♰ Lewis, 1972 | |
| Dioctria parvula Coquillett, 1893 | |
| Dioctria pleuralis Banks, 1917 | |
| Dioctria pulveris ♰ Cockerell, 1917 | |
| Dioctria pusio Osten-sacken, 1877 | |
| Dioctria tenuis (Walker, 1851) | ⇒ Mirolestes tenuis Walker, 1851 |
| Dioctria vera Back, 1909 | |
| Dioctria wilcoxi Adisoemarto ..., 1975 | |
| Diogmites angustipennis Loew, 1866 | Scarlet globemallow |
| Diogmites basalis Walker, 1851 | |
| Diogmites coloradensis James, 1933 | |
| Diogmites contortus Bromley, 1936 | |
| Diogmites discolor Loew, 1866 | Scarlet globemallow |
| Diogmites grossus (Bromley, 1936) | ⇒ Diogmites angustipennis Loew, 1866 |
| Diogmites lindigii Schiner, 1868 | |
| Diogmites misellus Loew, 1866 | Scarlet globemallow |
| Diogmites neoternatus Bromley, 1931 | |
| Diogmites perplexus Back, 1909 | |
| Diogmites platypterus Loew, 1866 | Scarlet globemallow |
| Diogmites pulcher Back, 1909 | |
| Echthodopa pubera Loew, 1866 | Scarlet globemallow |
| Echthopoda pubera Loew, 1866 | |
| Efferia aestuans Linnaeus, 1763 | |
| Efferia albibarbis Macquart, 1838 | |
| Efferia anacapai Wilcox & Martin, 1945 | |
| Efferia anomala Bellardi, 1861 | |
| Efferia antiochi Wilcox, 1966 | Smartweed dodder |
| Efferia anza Forbes, 1988 | |
| Efferia apache Wlicox, 1966 | |
| Efferia argyrosoma Hine, 1911 | |
| Efferia arida Williston, 1893 | |
| Efferia azteci Wilcox, 1966 | Smartweed dodder |
| Efferia basingeri Wilcox, 1966 | Smartweed dodder |
| Efferia basini Wilcox, 1966 | Smartweed dodder |
| Efferia benedicti Bromley, 1940 | |
| Efferia bexarensis Bromley, 1934 | |
| Efferia bicaudata Hine, 1919 | |
| Efferia caliente Wilcox, 1966 | |
| Efferia californica Schaeffer, 1916 | |
| Efferia cana Hine, 1916 | |
| Efferia candida Coquillett, 1893 | |
| Efferia clementei Wilcox & Martin, 1945 | |
| Efferia coquillettii Hine, 1919 | |
| Efferia costalis Williston, 1885 | |
| Efferia coulei Wilcox, 1966 | Smartweed dodder |
| Efferia cressoni Hine, 1919 | |
| Efferia davisi Wilcox, 1966 | Smartweed dodder |
| Efferia deserti Wilcox, 1966 | Smartweed dodder |
| Efferia dubia Williston, 1885 | |
| Efferia ehrenbergi Wilcox, 1966 | Smartweed dodder |
| Efferia frewingi Wilcox, 1966 | Smartweed dodder |
| Efferia halli Wilcox, 1966 | Smartweed dodder |
| Efferia harveyi Hine, 1919 | |
| Efferia helenae Bromley, 1951 | |
| Efferia imperialis Forbes, 1988 | |
| Efferia inflata Hine, 1911 | |
| Efferia jubata Williston, 1885 | |
| Efferia knowltoni Bromley, 1937 | |
| Efferia latruncula Williston, 1885 | |
| Efferia macroxipha Forbes, 1988 | |
| Efferia macroxyipha | |
| Efferia neoinflata Wilcox, 1966 | Smartweed dodder |
| Efferia pallidula Hine, 1911 | |
| Efferia peralta Wilcox, 1966 | Smartweed dodder |
| Efferia pernicis Coquillett, 1893 | |
| Efferia pogonias Wiedemann, 1821 | |
| Efferia producta Hine, 1919 | |
| Efferia prolifica Osten Sacken, 1887 | |
| Efferia rapax Osten Sacken, 1887 | |
| Efferia setigera Wilcox, 1966 | Smartweed dodder |
| Efferia snowi Hine, 1919 | |
| Efferia staminea Williston, 1885 | Oval-leaf clustervine |
| Efferia subarida Bromley, 1940 | |
| Efferia subcuprea Schaeffer, 1916 | |
| Efferia subpilosa Schaeffer, 1916 | |
| Efferia tolandi Wilcox, 1966 | Smartweed dodder |
| Efferia tricella Bromley, 1951 | |
| Efferia tuberculata Coquillett, 1904 | |
| Efferia tucsoni Wilcox, 1966 | Smartweed dodder |
| Efferia utahensis Bromley, 1937 | |
| Efferia varipes Williston, 1885 | |
| Efferia vertebrata Bromley, 1940 | |
| Efferia willistoni Hine, 1919 | |
| Efferia yermo Wilcox, 1966 | Smartweed dodder |
| Efferia yuma Wilcox, 1966 | Smartweed dodder |
| Efferia zonata Hine, 1919 | |
| Eucyrtopogon albibarbus Curran, 1923 | |
| Eucyrtopogon calcaratus Curran, 1923 | |
| Eucyrtopogon comantis Curran, 1923 | |
| Eucyrtopogon diversipilosis Curran, 1923 | |
| Eucyrtopogon maculosus Coquillett, 1904 | |
| Eucyrtopogon nebulo Osten-sacken, 1877 | |
| Eucyrtopogon punctipennis Melander, 1923 | |
| Eucyrtopogon varipennis Coquillett, 1904 | |
| Eudioctria beameri Wilcox & Martin, 1941 | |
| Eudioctria denuda Wilcox & Martin, 1941 | |
| Eudioctria dissimilis Adisoemarto ..., 1975 | |
| Eudioctria doanei Melander, 1924 | |
| Eudioctria media Banks, 1917 | |
| Eudioctria monrovia Wilcox & Martin, 1941 | |
| Eudioctria nitida Williston, 1883 | |
| Eudioctria sackeni Williston, 1883 | |
| Eudioctria tibialis Banks, 1917 | |
| Eudioctria unica Adisoemarto ..., 1975 | |
| Glaphyropyga aristata Carrera, 1950 | |
| Haplopogon dicksoni Wilcox, 1966 | Smartweed dodder |
| Haplopogon utahensis Wilcox, 1966 | Smartweed dodder |
| Heteropogon arizonensis Wilcox, 1941 | Slender dodder |
| Heteropogon cirrhatus Osten-sacken, 1877 | |
| Heteropogon crabroides | |
| Heteropogon davisi Wilcox, 1965 | Prairie dodder |
| Heteropogon fisheri Wilcox, 1965 | Prairie dodder |
| Heteropogon johnsoni Back, 1904 | |
| Heteropogon ludius Coquillett, 1893 | |
| Heteropogon macerinus Walker, 1849 | |
| Heteropogon maculinervis James, 1937 | |
| Heteropogon martini Wilcox, 1965 | Prairie dodder |
| Heteropogon rubidus Coquillett, 1893 | |
| Heteropogon senilis Bigot, 1878 | |
| Heteropogon stonei Wilcox, 1965 | Prairie dodder |
| Heteropogon tolandi Wilcox, 1965 | Prairie dodder |
| Heteropogon wilcoxi James, 1934 | |
| Hodophylax aridus James, 1933 | Engelmann's hedgehog cactus |
| Hodophylax basingeri Pritchard, 1938 | Hall's milkvetch |
| Hodophylax halli Wilcox, 1961 | Santa Rita Mountain dodder |
| Holcocephala abdominalis Say, 1823 | |
| Holcocephala calva Loew, 1872 | |
| Holopogon acropennis Martin, 1959 | Mojave cleomella |
| Holopogon albipilosus Curran, 1923 | |
| Holopogon appendiculatum Bigot, 1878 | |
| Holopogon appendiculatus Bigot, 1878 | |
| Holopogon archilestes ♰ Hull, 1960 | |
| Holopogon archilestris Hull, 1960 | |
| Holopogon atrifrons Cole, 1924 | |
| Holopogon atripennis Back, 1909 | |
| Holopogon caesariatus Martin, 1959 | Mojave cleomella |
| Holopogon crinitus Martin, 1959 | Mojave cleomella |
| Holopogon currani Martin, 1959 | Mojave cleomella |
| Holopogon guttulus Wiedemann, 1821 | |
| Holopogon mingusae Martin, 1959 | Mojave cleomella |
| Holopogon nitidiventris Bigot, 1878 | |
| Holopogon seniculus Loew, 1866 | Scarlet globemallow |
| Holopogon stellatus Martin, 1959 | Mojave cleomella |
| Holopogon umbrinus Back, 1909 | |
| Holopogon vockerothi Martin, 1959 | Mojave cleomella |
| Holopogon wilcoxi Martin, 1959 | Mojave cleomella |
| Hullia commoni Paramonov, 1964 | |
| Itolia atripes Wilcox, 1949 | |
| Itolia timberlakei Wilcox, 1949 | |
| Lampria aurifex Osten-sacken, 1887 | |
| Lampria bicolor Wiedemann, 1828 | |
| Lampria clavipes Fabricius, 1805 | |
| Lampria rubriventris Macquart, 1834 | |
| Lamyra ignea Meigen, 1820 | |
| Laphria aeatus Walker, 1849 | Largeflower milkweed |
| Laphria aimatis Mcatee, 1919 | Purple bittercress |
| Laphria asackeni Wilcox, 1965 | Prairie dodder |
| Laphria astur Osten-sacken, 1877 | |
| Laphria asturina Bromley, 1951 | |
| Laphria carbonaria Snow, 1896 | |
| Laphria columbica Walker, 1866 | Mahogany milkweed |
| Laphria coquilletti Mcatee, 1919 | Purple bittercress |
| Laphria coquillettii (Mcatee, 1919) | ⇒ Laphria coquilletti Mcatee, 1919 |
| Laphria engelhardti Bromley, 1931 | |
| Laphria felis Osten-sacken, 1877 | Black hawthorn |
| Laphria fernaldi Back, 1904 | |
| Laphria ferox Williston, 1883 | |
| Laphria flava Linnaeus, 1761 | Bumblebee robberfly |
| Laphria franciscana Bigot, 1878 | |
| Laphria gilva (Linnaeus, 1758) | ⇒ Lamyra ignea Meigen, 1820 |
| Laphria index Mcatee, 1919 | Purple bittercress |
| Laphria insignis Banks, 1917 | |
| Laphria janus Mcatee, 1919 | Purple bittercress |
| Laphria lata Macquart, 1850 | Ivy gourd |
| Laphria lukinsi Paramonov, 1958 | |
| Laphria milvina Bromley, 1929 | |
| Laphria partitor Banks, 1917 | |
| Laphria rapax Osten-sacken, 1877 | |
| Laphria rufifemorata Macquart, 1846 | |
| Laphria sackeni (Banks, 1917) | ⇒ Laphria asackeni Wilcox, 1965 |
| Laphria sadales Walker, 1849 | Largeflower milkweed |
| Laphria saffrana Fabricius, 1805 | |
| Laphria scorpio Mcatee, 1919 | Purple bittercress |
| Laphria sericea Say, 1823 | |
| Laphria sicula Mcatee, 1919 | Purple bittercress |
| Laphria telecles Walker, 1849 | |
| Laphria thoracica Fabricius, 1805 | Bumble Bee Mimic Robber Fly |
| Laphria trux Mcatee, 1919 | Purple bittercress |
| Laphria unicolor Williston, 1883 | |
| Laphria ventralis Williston, 1885 | Pineland clustervine |
| Laphria vivax Williston, 1883 | |
| Laphria vultur Osten-sacken, 1877 | |
| Laphystia actius Melander, 1923 | |
| Laphystia annulata Hull, 1957 | |
| Laphystia annulata annulata Hull, 1957 | |
| Laphystia brookmani Wilcox, 1960 | |
| Laphystia canadensis Curran, 1927 | |
| Laphystia cazieri Wilcox, 1960 | |
| Laphystia confusa Curran, 1927 | |
| Laphystia duncani Wilcox, 1960 | |
| Laphystia flavipes Coquillett, 1904 | |
| Laphystia howlandi Wilcox, 1960 | |
| Laphystia jamesi Wilcox, 1960 | |
| Laphystia lanhami James, 1941 | |
| Laphystia limatula Coquillett, 1904 | |
| Laphystia litoralis Curran, 1931 | |
| Laphystia martini Wilcox, 1960 | |
| Laphystia rubra Hull, 1957 | |
| Laphystia rufiventris Curran, 1931 | |
| Laphystia rufofasciata Curran, 1931 | |
| Laphystia texensis Curran, 1931 | |
| Laphystia tolandi Wilcox, 1960 | |
| Laphystia torpida Hull, 1957 | |
| Laphystia utahensis Wilcox, 1960 | |
| Lasiopogon actius (Melander, 1923) | ⇒ Laphystia actius Melander, 1923 |
| Lasiopogon albidus Cole & Wilcox, 1938 | |
| Lasiopogon aldrichii Melander, 1923 | Roadside false madwort |
| Lasiopogon apache Cannings, 2002 | |
| Lasiopogon arenicola Osten-sacken, 1877 | |
| Lasiopogon arenicolus Osten Sacken, 1877 | |
| Lasiopogon bivittatus Loew, 1866 | Scarlet globemallow |
| Lasiopogon californicus Cole & Wilcox, 1938 | |
| Lasiopogon canus Cole & Wilcox, 1938 | |
| Lasiopogon chaetosus Cole & Wilcox, 1938 | |
| Lasiopogon cinereus Cole, 1919 | |
| Lasiopogon delicatulus Melander, 1923 | Roadside false madwort |
| Lasiopogon dimicki Cole & Wilcox, 1938 | |
| Lasiopogon drabicola Cole, 1916 | |
| Lasiopogon fumipennis Melander, 1923 | Roadside false madwort |
| Lasiopogon gabrieli Cole & Wilcox, 1938 | |
| Lasiopogon hinei Cole & Wilcox, 1938 | |
| Lasiopogon lavignei Cannings, 2002 | |
| Lasiopogon littoris Cole, 1924 | |
| Lasiopogon martinorum Cole & Wilcox, 1938 | |
| Lasiopogon monticola (Melander, 1923) | ⇒ Lasiopogon monticolus Melander, 1923 |
| Lasiopogon monticolus Melander, 1923 | Roadside false madwort |
| Lasiopogon pacificus Cole & Wilcox, 1938 | |
| Lasiopogon polensis Lavigne, 1969 | |
| Lasiopogon pugeti Cole & Wilcox, 1938 | |
| Lasiopogon quadrivittatus Jones, 1907 | Hooker's silene |
| Lasiopogon ripicola (Melander, 1923) | ⇒ Lasiopogon ripicolus Melander, 1923 |
| Lasiopogon ripicolus Melander, 1923 | Roadside false madwort |
| Lasiopogon terricolus Johnson, 1900 | |
| Lasiopogon testaceus Cole & Wilcox, 1938 | |
| Lasiopogon trivittatus Melander, 1923 | Roadside false madwort |
| Lasiopogon willametti Cole & Wilcox, 1938 | |
| Lasiopogon zonatus Cole & Wilcox, 1938 | |
| Leptogaster arborcola Martin, 1957 | MacBride cleomella |
| Leptogaster arenicola James, 1937 | |
| Leptogaster arida Cole, 1919 | |
| Leptogaster atridorsalis Back, 1909 | |
| Leptogaster brevicornis Loew, 1872 | Juniper globemallow |
| Leptogaster californica Martin, 1957 | MacBride cleomella |
| Leptogaster coloradensis James, 1937 | |
| Leptogaster cultaventris Martin, 1957 | MacBride cleomella |
| Leptogaster eudicrana Loew, 1874 | Emory's globemallow |
| Leptogaster flavipes Loew, 1862 | Jone's globemallow |
| Leptogaster fornicata Martin, 1957 | MacBride cleomella |
| Leptogaster hirtipes Coquillett, 1904 | |
| Leptogaster incisuralis Loew, 1862 | Jone's globemallow |
| Leptogaster lanata Martin, 1957 | MacBride cleomella |
| Leptogaster murina Loew, 1862 | Jone's globemallow |
| Leptogaster nitoris Martin, 1957 | MacBride cleomella |
| Leptogaster occidentalis White, 1914 | |
| Leptogaster parvoclava Martin, 1957 | MacBride cleomella |
| Leptogaster patula Martin, 1957 | MacBride cleomella |
| Leptogaster prior ♰ Melander, 1947 | |
| Leptogaster salvia Martin, 1957 | MacBride cleomella |
| Leptogaster virgata Coquillett, 1904 | |
| Leptopteromyia americana Hardy, 1947 | Thickleaf peperomia |
| Lestomyia atripes Wilcox, 1937 | |
| Lestomyia fraudigera Williston, 1883 | |
| Lestomyia miocenica ♰ James, 1939 | |
| Lestomyia montis Cole, 1916 | |
| Lestomyia sabulona Osten-sacken, 1877 | |
| Lestomyia strigipes Curran, 1931 | |
| Machimus adustus Martin, 1975 | |
| Machimus alticolus (Martin, 1975) | ⇒ Machimus latapex Martin, 1975 |
| Machimus aridalis Adisoemarto, 1967 | |
| Machimus atricapillus (Fallen, 1814) | ⇒ Tolmerus atricapillus Fallen, 1814 |
| Machimus autumnalis Banks, 1914 | |
| Machimus callidus Williston, 1893 | |
| Machimus coleus Martin, 1975 | |
| Machimus convexus (Martin, 1975) | ⇒ Machimus latapex Martin, 1975 |
| Machimus delusus Tucker, 1907 | |
| Machimus erythocnemius Hine, 1909 | |
| Machimus formosus Hine, 1918 | |
| Machimus gilvipes Hine, 1918 | |
| Machimus grantae Martin, 1975 | |
| Machimus griseus Hine, 1906 | Bluestem pricklypoppy |
| Machimus hinei Fisher and W..., 1987 | |
| Machimus latapex Martin, 1975 | |
| Machimus latipex Martin, 1975 | |
| Machimus latipex alticolus | |
| Machimus latipex convexus | |
| Machimus lecythus Walker, 1849 | |
| Machimus longipenis Martin, 1975 | |
| Machimus maneei Hine, 1909 | |
| Machimus notatus Wiedemann, 1828 | |
| Machimus notialis Martin, 1975 | |
| Machimus occidentalis Hine, 1909 | |
| Machimus paropus Walker, 1849 | |
| Machimus prairiensis Tucker, 1907 | Eryngo |
| Machimus sestertius Martin, 1975 | |
| Machimus sestertius davidsonae | |
| Machimus sestertius triton | |
| Machimus stanfordae Martin, 1975 | |
| Machimus triton (Martin, 1975) | ⇒ Machimus sestertius Martin, 1975 |
| Machimus vescus Hine, 1918 | |
| Maira leei Paramonov, 1958 | |
| Mallophora fautrix Osten-sacken, 1887 | |
| Mallophora leschenaultii Macquart, 1838 | |
| Martintella lestes Williston, 1901 | |
| Mauropteron pelago Walker, 1849 | |
| Megaphorus acrus Curran, 1931 | |
| Megaphorus clausicellus Macquart, 1850 | |
| Megaphorus clausicellus intermedius | |
| Megaphorus flavidus Cole, 1964 | |
| Megaphorus frustra Cole & Pritc..., 1964 | |
| Megaphorus frustrus Pritchard, 1935 | |
| Megaphorus guildiana Williston, 1885 | |
| Megaphorus guildianus Williston, 1885 | |
| Megaphorus intermedius Tucker, 1907 | |
| Megaphorus martinorum Cole, 1964 | |
| Megaphorus megachile Coquillett, 1893 | |
| Megaphorus pallidus Johnson, 1958 | |
| Megaphorus prudens Pritchard, 1935 | |
| Megaphorus pulchra Pritchard, 1935 | |
| Megaphorus willistoni Cole, 1964 | |
| Metadioctria parvula Coquillett, 1893 | |
| Metadioctria resplendens Loew, 1872 | |
| Metadioctria rubida Coquillett, 1893 | |
| Metapogon albulus (Melander, 1924) | ⇒ Coleomyia albula Melander, 1924 |
| Metapogon amargosae Wilcox, 1972 | Saltmarsh dodder |
| Metapogon carinatus Wilcox, 1964 | Bush-clover dodder |
| Metapogon gibber Williston, 1883 | |
| Metapogon gilvipes Coquillett, 1904 | |
| Metapogon hurdi Wilcox, 1964 | Bush-clover dodder |
| Metapogon obispae Wilcox, 1972 | Saltmarsh dodder |
| Metapogon pictus Cole, 1916 | |
| Metapogon punctipennis Coquillett, 1904 | |
| Metapogon tarsalus Wilcox, 1964 | Bush-clover dodder |
| Metapogon tricellus Wilcox, 1964 | Bush-clover dodder |
| Microstylum destructum ♰ Cockerell, 1909 | |
| Microstylum galactodes Loew, 1866 | Scarlet globemallow |
| Microstylum morosum Loew, 1872 | Juniper globemallow |
| Microstylum wheeleri ♰ Cockerell, 1908 | |
| Myelaphus lobicornis Osten-sacken, 1877 | |
| Myelaphus melas Bigot, 1882 | |
| Nannocyrtopogon antennatus Wilcox & Martin, 1957 | Rope dodder |
| Nannocyrtopogon aristatus James, 1942 | |
| Nannocyrtopogon arnaudi Wilcox & Martin, 1957 | Rope dodder |
| Nannocyrtopogon atripes Wilcox & Martin, 1936 | Tall dodder |
| Nannocyrtopogon bruneri Wilcox & Martin, 1957 | Rope dodder |
| Nannocyrtopogon cerussatus Osten-sacken, 1877 | |
| Nannocyrtopogon deserti Wilcox & Martin, 1957 | Rope dodder |
| Nannocyrtopogon howlandi Wilcox & Martin, 1957 | Rope dodder |
| Nannocyrtopogon inyoi Wilcox & Martin, 1957 | Rope dodder |
| Nannocyrtopogon irvinei Wilcox & Martin, 1957 | Rope dodder |
| Nannocyrtopogon irwini Wilcox & Martin, 1957 | |
| Nannocyrtopogon jbeameri Wilcox & Martin, 1957 | Rope dodder |
| Nannocyrtopogon lestomyiformis Wilcox & Martin, 1936 | Tall dodder |
| Nannocyrtopogon mingusi Wilcox & Martin, 1957 | Rope dodder |
| Nannocyrtopogon minutus Wilcox & Martin, 1936 | Tall dodder |
| Nannocyrtopogon monrovia Wilcox & Martin, 1936 | Tall dodder |
| Nannocyrtopogon neoculatus Wilcox & Martin, 1957 | Rope dodder |
| Nannocyrtopogon nevadensis Wilcox & Martin, 1957 | Rope dodder |
| Nannocyrtopogon nigricolor Coquillett, 1904 | |
| Nannocyrtopogon nitidus Wilcox & Martin, 1957 | Rope dodder |
| Nannocyrtopogon oculatus Wilcox & Martin, 1936 | Tall dodder |
| Nannocyrtopogon richardsoni Wilcox & Martin, 1957 | Rope dodder |
| Nannocyrtopogon sequoia Wilcox & Martin, 1957 | Rope dodder |
| Nannocyrtopogon stonei Wilcox & Martin, 1957 | Rope dodder |
| Nannocyrtopogon timberlakei Wilcox & Martin, 1957 | Rope dodder |
| Nannocyrtopogon tolandi Wilcox & Martin, 1957 | Rope dodder |
| Nannocyrtopogon vanduzeei Wilcox & Martin, 1936 | Tall dodder |
| Nannocyrtopogon vandykei Wilcox & Martin, 1957 | Rope dodder |
| Nannodioctria albicornis Wilcox & Martin, 1941 | |
| Negasilus astutus Williston, 1893 | |
| Negasilus belli Curran, 1934 | |
| Negasilus gramalis Adisoemarto, 1967 | |
| Negasilus platyceras Hine, 1922 | |
| Neoitamus affinis Williston, 1893 | |
| Neoitamus brevicomus Hine, 1909 | |
| Neoitamus coquillettii Hine, 1909 | |
| Neoitamus cyanurus Loew, 1849 | Common awl robberfly |
| Neoitamus flavofemoratus Hine, 1909 | |
| Neoitamus hardyi (Bromley, 1938) | ⇒ Regasilus auriannulatus Hine, 1906 |
| Neoitamus orphne Walker, 1849 | Arizona milkweed |
| Neoitamus socius Loew, 1871 | |
| Neoitamus terminalis Hine, 1909 | |
| Neolophonotus zopherus Londt, 1986 | |
| Neomochtherus albicomus Hine, 1909 | |
| Neomochtherus auricomus Hine, 1909 | |
| Neomochtherus californicus Hine, 1909 | |
| Neomochtherus comosus Hine, 1918 | |
| Neomochtherus hypopygialis Schaeffer, 1916 | |
| Neomochtherus idahoae Martin, 1975 | |
| Neomochtherus lassenae Martin, 1975 | |
| Neomochtherus lepidus Hine, 1909 | |
| Neomochtherus montanus Hine, 1909 | |
| Neomochtherus olympiae (Martin, 1975) | ⇒ Neomochtherus willistoni Hine, 1909 |
| Neomochtherus oregonae (Martin, 1975) | ⇒ Neomochtherus californicus Hine, 1909 |
| Neomochtherus willistoni Hine, 1909 | |
| Neosaropogon (Lycotherates) harlequinus Hull, 1962 | |
| Neoscleropogon agave Walker, 1849 | |
| Neoscleropogon digentius Walker, 1849 | |
| Neoscleropogon nicoteles Walker, 1849 | |
| Neoscleropogon thalpius Walker, 1849 | |
| Nerax aestuans Linnaeus, 1763 | |
| Nevadasilus auriannulatus | |
| Nevadasilus blantoni Bromley, 1951 | |
| Nicocles abdominalis Williston, 1883 | |
| Nicocles aemulator Loew, 1872 | |
| Nicocles argentatus Coquillett, 1893 | |
| Nicocles canadensis Curran, 1923 | |
| Nicocles dives Loew, 1866 | |
| Nicocles lomae Cole, 1916 | |
| Nicocles miocenicus ♰ Cockerell, 1909 | |
| Nicocles pictus Loew, 1866 | |
| Nicocles pollinosus Wilcox, 1946 | |
| Nicocles rufus Williston, 1883 | |
| Nicocles utahensis Banks, 1920 | |
| Nyximyia nigra Hull, 1962 | |
| Ommatius ademon Walker, 1849 | |
| Ommatius chrysopilus Oldroyd, 1972 | |
| Ommatius humatus Scarbrough, 1993 | |
| Ommatius lema Walker, 1849 | |
| Ommatius orus Oldroyd, 1968 | |
| Omninablautus nigripes Wilcox, 1966 | |
| Omninablautus nigronotum Wilcox, 1935 | |
| Omninablautus tolandi Wilcox, 1966 | |
| Opseostlengis insignis White, 1914 | |
| Orthogonis clavata White, 1914 | |
| Ospriocerus abdominalis Say, 1823 | |
| Ospriocerus aeacidinus Williston, 1886 | |
| Ospriocerus brevis Martin, 1968 | |
| Ospriocerus latipennis Loew, 1866 | |
| Ospriocerus longulus Loew, 1866 | |
| Ospriocerus minos (Osten-sacken, 1887) | ⇒ Stenopogon minos Osten Sacken, 1877 |
| Ospriocerus vallensis Martin, 1968 | |
| Palaeomolobra antiqua ♰ James, 1939 | |
| Parataracticus cuyamus Wilcox, 1967 | |
| Parataracticus niger Martin, 1955 | Chiricahua Mountain stinkweed |
| Parataracticus rubens Coquillett, 1904 | |
| Parataracticus rubidus Cole, 1924 | |
| Parataracticus wyliei Martin, 1955 | Chiricahua Mountain stinkweed |
| Pegesimallus oralis Wulp, 1884 | |
| Phellus glaucus Walker, 1851 | |
| Phellus olgae Paramonov, 1953 | Giant robber fly |
| Phellus piliferus Dakin & Fordham, 1922 | |
| Philonicus arizonensis Williston, 1893 | |
| Philonicus fuscatus Hine, 1909 | |
| Philonicus limpidipennis Hine, 1909 | |
| Philonicus obscurus (Hine, 1907) | ⇒ Philonicus fuscatus Hine, 1909 |
| Philonicus persimilis Banks, 1920 | |
| Philonicus plebeius Osten-sacken, 1887 | Black hawthorn |
| Philonicus saxorum ♰ James, 1939 | |
| Philonicus truquii Bellardi, 1861 | |
| Pogonioefferia anza Forbes, 1988 | |
| Pogonioefferia argyrosoma Hine, 1911 | |
| Pogonioefferia basini Wilcox, 1966 | |
| Pogonioefferia benedicti Bromley, 1940 | |
| Pogonioefferia bicaudata Hine, 1919 | |
| Pogonioefferia californicus Schaeffer, 1916 | |
| Pogonioefferia cana Hine, 1916 | |
| Pogonioefferia clementei Wilcox & Martin, 1945 | |
| Pogonioefferia coquilletti Hine, 1919 | |
| Pogonioefferia deserti Wilcox, 1966 | |
| Pogonioefferia dubius Williston, 1885 | |
| Pogonioefferia ehrenbergi Wilcox, 1966 | |
| Pogonioefferia frewingi Wilcox, 1966 | |
| Pogonioefferia helenae Bromley, 1951 | |
| Pogonioefferia inflata Hine, 1911 | |
| Pogonioefferia kelloggi Wilcox, 1966 | |
| Pogonioefferia mortensoni Wilcox, 1966 | |
| Pogonioefferia neoinflata Wilcox, 1966 | |
| Pogonioefferia pallidula Hine, 1911 | |
| Pogonioefferia rapax Osten-sacken, 1887 | |
| Pogonioefferia staminea Williston, 1885 | |
| Pogonioefferia truncata Hine, 1911 | |
| Pogonioefferia utahensis Bromley, 1937 | |
| Pogonioefferia varipes Williston, 1885 | |
| Pogonioefferia yermo Wilcox, 1966 | |
| Pogonioefferia yuma Wilcox, 1966 | |
| Pogonosoma ridingsi Cresson, 1920 | |
| Polacantha composita Hine, 1918 | |
| Polacantha pegma Martin, 1975 | |
| Pritchardomyia vespoides Bigot, 1878 | |
| Proctacanthella cacopiloga Hine, 1909 | |
| Proctacanthella exquisita Osten-sacken, 1887 | |
| Proctacanthella leucopogon Williston, 1893 | |
| Proctacanthella tolandi Wilcox, 1965 | Prairie dodder |
| Proctacanthus brevipennis Wiedemann, 1828 | |
| Proctacanthus coquillettii Hine, 1911 | Chisos Mountain pricklypoppy |
| Proctacanthus duryi Hine, 1911 | Chisos Mountain pricklypoppy |
| Proctacanthus hinei Bromley, 1928 | |
| Proctacanthus micans Schiner, 1867 | Farwell's watermilfoil |
| Proctacanthus milbertii Macquart, 1838 | Melonleaf |
| Proctacanthus nearno Martin, 1962 | Rocky Mountain stickweed |
| Proctacanthus occidentalis Hine, 1911 | |
| Proctacanthus rodecki James, 1933 | Engelmann's hedgehog cactus |
| Proctocantha coquillettii | |
| Proctocantha leucopogon | |
| Proctocanthella tolandi | |
| Prolepsis tristis Walker, 1851 | |
| Promachus albifacies Williston, 1885 | Pineland clustervine |
| Promachus aldrichii Hine, 1911 | Chisos Mountain pricklypoppy |
| Promachus bastardii Macquart, 1838 | |
| Promachus dimidiatus Curran, 1927 | |
| Promachus hinei Bromley, 1931 | |
| Promachus nigrialbus Martin, 1970 | |
| Promachus nigripes (Hine, 1911) | ⇒ Promachus nigrialbus Martin, 1970 |
| Promachus nigropilosus Schaeffer, 1916 | Sidebeak pencilflower |
| Promachus oklahomensis Pritchard, 1935 | Gypsum milk-vetch |
| Promachus princeps Williston, 1885 | Pineland clustervine |
| Promachus rufipes Fabricius, 1775 | Red-footed cannibal fly |
| Promachus sackeni Hine, 1911 | Chisos Mountain pricklypoppy |
| Promachus truquii Bellardi, 1861 | |
| Promachus vertebratus Say, 1823 | |
| Pseudoryclus bicolor Bellardi, 1861 | |
| Psilonyx annulatus Say, 1823 | |
| Psilozona albitarsis Ricardo, 1912 | |
| Psilozona lukinsi Paramonov, 1966 | |
| Questopogon affinis Daniels, 1976 | |
| Questopogon clarkii Dakin & Fordham, 1922 | |
| Questopogon guttatus Daniels, 1976 | |
| Rachiopogon rubescens White, 1914 | |
| Reburrus aquilonius Daniels, 1987 | |
| Regasilus auriannulatus Hine, 1906 | |
| Regasilus blantoni Bromley, 1951 | |
| Rhadiurgus variabilis Zetterstedt, 1838 | Northern robberfly |
| Saropogon (Lycomax) flavofacialis Hull, 1956 | |
| Saropogon abbreviatus Johnson, 1903 | |
| Saropogon albifrons Back, 1904 | |
| Saropogon combustus Loew, 1874 | Emory's globemallow |
| Saropogon hyalinus Coquillett, 1904 | |
| Saropogon luteus Coquillett, 1904 | |
| Saropogon mohawki Wilcox, 1966 | Smartweed dodder |
| Saropogon oblitescens ♰ Cockerell, 1914 | |
| Saropogon semiustus Coquillett, 1904 | |
| Scarbroughia delicatula Hine, 1918 | |
| Scleropogon bradleyi Bromley, 1937 | |
| Scleropogon coyote Bromley, 1931 | |
| Scleropogon duncani Bromley, 1937 | |
| Scleropogon helvolus Loew, 1874 | Emory's globemallow |
| Scleropogon indistinctus Bromley, 1937 | |
| Scleropogon neglectus Bromley, 1931 | |
| Scleropogon picticornis Loew, 1866 | Scarlet globemallow |
| Scleropogon uhleri Banks, 1920 | |
| Senobasis antiqua James, 1939 | |
| Senobasis borealis James, 1939 | |
| Senoprosopis (Eosenoprosopis) antiquus ♰ M. T. James, 1939 | |
| Senoprosopis (Eosenoprosopis) borealis ♰ James, 1939 | |
| Senoprosopis (Eosenoprosopis) romeri ♰ Hull, 1958 | |
| Senoprosopis beckeri ♰ Lewis, 1972 | |
| Senoprosopis eureka ♰ Melander, 1949 | |
| Sintoria cazieri Wilcox, 1972 | Saltmarsh dodder |
| Sintoria cyanea Wilcox, 1972 | Saltmarsh dodder |
| Sintoria mojavae (Wilcox, 1972) | ⇒ Sintoria cyanea Wilcox, 1972 |
| Stackelberginia cerberus Mcknight & C..., 2017 | |
| Stenocinclis anomala ♰ Scudder, 1878 | |
| Stenopogon adelantae Wilcox, 1971 | Runyon's dodder |
| Stenopogon aeacidinus (Williston, 1886) | ⇒ Ospriocerus aeacidinus Williston, 1886 |
| Stenopogon aeacus Wiedemann, 1828 | |
| Stenopogon albibasis Bigot, 1878 | |
| Stenopogon antoniae Wilcox, 1971 | Runyon's dodder |
| Stenopogon bakeri Wilcox, 1971 | Runyon's dodder |
| Stenopogon bartonae Wilcox, 1971 | Runyon's dodder |
| Stenopogon blaisdelli Wilcox, 1971 | Runyon's dodder |
| Stenopogon boharti Bromley, 1951 | |
| Stenopogon breviusculoides Bromley, 1937 | |
| Stenopogon breviusculus Loew, 1872 | Juniper globemallow |
| Stenopogon bromleyi Wilcox, 1971 | Runyon's dodder |
| Stenopogon brookmani Wilcox, 1971 | Runyon's dodder |
| Stenopogon californiae Walker, 1849 | |
| Stenopogon californioides Bromley, 1937 | |
| Stenopogon cazieri Brookman, 1941 | |
| Stenopogon diablae Wilcox, 1971 | Runyon's dodder |
| Stenopogon duncani (Bromley, 1937) | ⇒ Scleropogon duncani Bromley, 1937 |
| Stenopogon engelhardti Bromley, 1937 | |
| Stenopogon englandi Wilcox, 1971 | Runyon's dodder |
| Stenopogon felis Bromley, 1931 | |
| Stenopogon figueroae Wilcox, 1971 | Runyon's dodder |
| Stenopogon graminis Lavigne & De..., 2019 | |
| Stenopogon gratus Loew, 1872 | Juniper globemallow |
| Stenopogon indistinctus (Bromley, 1937) | ⇒ Scleropogon indistinctus Bromley, 1937 |
| Stenopogon inquinatus Loew, 1866 | Scarlet globemallow |
| Stenopogon inyae Wilcox, 1971 | Runyon's dodder |
| Stenopogon jubatoides Bromley, 1937 | |
| Stenopogon jubatus Coquillett, 1904 | |
| Stenopogon jurupae Wilcox, 1971 | Runyon's dodder |
| Stenopogon kirkwoodi Wilcox, 1971 | Runyon's dodder |
| Stenopogon latipennis (Loew, 1866) | ⇒ Ospriocerus latipennis Loew, 1866 |
| Stenopogon linsleyi Wilcox, 1971 | Runyon's dodder |
| Stenopogon lomae Wilcox, 1971 | Runyon's dodder |
| Stenopogon macswaini Wilcox, 1971 | Runyon's dodder |
| Stenopogon martini Bromley, 1937 | |
| Stenopogon melanderi Wilcox, 1971 | Runyon's dodder |
| Stenopogon minos Osten Sacken, 1877 | |
| Stenopogon mojavae Wilcox, 1971 | Runyon's dodder |
| Stenopogon neojubatus Wilcox & Martin, 1945 | Bushclover dodder |
| Stenopogon nigritulus Coquillett, 1904 | |
| Stenopogon obispae Wilcox, 1971 | Runyon's dodder |
| Stenopogon obscuriventris Loew, 1872 | Juniper globemallow |
| Stenopogon ozenae Wilcox, 1971 | Runyon's dodder |
| Stenopogon pinyonae Wilcox, 1971 | Runyon's dodder |
| Stenopogon powelli Wilcox, 1971 | Runyon's dodder |
| Stenopogon propinquus Bromley, 1937 | |
| Stenopogon rafaelae Wilcox, 1971 | Runyon's dodder |
| Stenopogon rufibarbis Bromley, 1931 | |
| Stenopogon rufibarboides Bromley, 1937 | |
| Stenopogon tolandi Wilcox, 1971 | Runyon's dodder |
| Stenopogon utahensis Bromley, 1951 | |
| Stenopogon vallensis Martin, 1968 | |
| Stenopogon wilcoxi Bromley, 1937 | |
| Stenopogon williamsi Wilcox, 1971 | Runyon's dodder |
| Stichopogon argenteus Say, 1823 | |
| Stichopogon coquilletti Bezzi, 1910 | |
| Stichopogon coquillettii Bezzi, 1910 | |
| Stichopogon fragilis Back, 1909 | |
| Stichopogon pritchardi Bromley, 1951 | |
| Stichopogon sabroskyi | |
| Stichopogon salinus Melander, 1924 | |
| Stichopogon trifasciatus Say, 1823 | Three-banded Robber Fly |
| Stilpnogaster auriannulatus (Hine, 1906) | ⇒ Regasilus auriannulatus Hine, 1906 |
| Taracticus contusus ♰ Cockerell, 1910 | |
| Taracticus hypogaeus ♰ Cockerell, 1909 | |
| Taracticus octopunctatus Say, 1823 | |
| Taracticus paulus Pritchard, 1938 | Hall's milkvetch |
| Taracticus renovatus ♰ Cockerell, 1911 | |
| Taracticus ruficaudus Curran, 1930 | |
| Tolmerus maneei Hine, 1909 | |
| Triorla interrupta Macquart, 1834 | |
| Tuberculefferia producta Hine, 1919 | |
| Tuberculefferia setigera Wilcox, 1966 | |
| Tuberculefferia tuberculata (Coquillett, 1904) | ⇒ Efferia tuberculata Coquillett, 1904 |
| Tuberculefferia tucsoni Wilcox, 1966 | |
| Wilcoxia cinerea James, 1941 | |
| Wilcoxia martinorum Wilcox, 1972 | Saltmarsh dodder |
| Wilcoxia monae Wilcox, 1972 | Saltmarsh dodder |
| Wilcoxia painteri Wilcox, 1972 | Saltmarsh dodder |
| Wilcoxia pollinosa Wilcox, 1972 | Saltmarsh dodder |
| Willistonina bilineata Williston, 1883 | |
| Willistonina bilineata nigrofemorata Wilcox, 1935 | |
| Willistonina bilineatus Williston, 1883 | |
| Willistonina nigrofemorata (Wilcox, 1935) | ⇒ Willistonina bilineatus Williston, 1883 |
| Zabrops argutus Fisher, 1977 | |
| Zabrops arroyalis Fisher, 1977 | |
| Zabrops playalis Fisher, 1977 | |
| Zabrops tagax Williston, 1883 | |
| Zabrops tagax argutus | |
| Zabrops wilcoxi Fisher, 1977 | |
| Zabrops wilcoxi arroyalis | |
| Zabrops wilcoxi playalis | |
| Zosteria fulvipubescens Macquart, 1850 | |
