| Brillia flavifrons Johannsen, 1905 | |
| Brillia laculata Oliver & Rou..., 1983 | Lewis' mock orange |
| Brillia longifurca (Kieffer, 1921) | ⇒ Brillia flavifrons Johannsen, 1905 |
| Brillia parva Johannsen, 1934 | |
| Brillia retifinis Saether, 1969 | Alpine sweetvetch |
| Brillia sera Roback, 1957 | Cusp clover |
| Cardiocladius albiplumus Saether, 1969 | Alpine sweetvetch |
| Cardiocladius fulva Johannsen, 1908 | |
| Cardiocladius obscura Johannsen, 1903 | |
| Cardiocladius platypus Coquillett, 1902 | |
| Cricotopus (Cricotopus) absurdus Johannsen, 1905 | |
| Cricotopus (Cricotopus) annulator Goetghebuer, 1927 | Anglevein fern |
| Cricotopus (Cricotopus) baptistensis Boesel, 1983 | |
| Cricotopus (Cricotopus) bicinctus Meigen, 1818 | Midge |
| Cricotopus (Cricotopus) brunnicans Walley, 1928 | Redring milkweed |
| Cricotopus (Cricotopus) coronatus Hirvenoja, 1973 | Tree poppy |
| Cricotopus (Cricotopus) cumulatus Hirvenoja, 1973 | Tree poppy |
| Cricotopus (Cricotopus) cylindraceus Kieffer, 1908 | |
| Cricotopus (Cricotopus) diversus Boesel, 1983 | |
| Cricotopus (Cricotopus) edurus Sublette & S..., 1971 | Bottlebrush buckeye |
| Cricotopus (Cricotopus) elegans Johannsen, 1943 | Gray chickweed |
| Cricotopus (Cricotopus) ephippium Zetterstedt, 1838 | |
| Cricotopus (Cricotopus) festivellus Kieffer, 1906 | |
| Cricotopus (Cricotopus) flavocinctus Kieffer, 1924 | |
| Cricotopus (Cricotopus) fugax Johannsen, 1905 | |
| Cricotopus (Cricotopus) furtivus Sublette & S..., 1971 | Bottlebrush buckeye |
| Cricotopus (Cricotopus) fuscus Kieffer, 1909 | |
| Cricotopus (Cricotopus) gelidus Kieffer, 1922 | |
| Cricotopus (Cricotopus) geminatus Say, 1823 | |
| Cricotopus (Cricotopus) globistylus Roback, 1957 | Cusp clover |
| Cricotopus (Cricotopus) infuscatus Malloch, 1915 | |
| Cricotopus (Cricotopus) junus Roback, 1957 | Cusp clover |
| Cricotopus (Cricotopus) lestralis Edwards, 1924 | |
| Cricotopus (Cricotopus) luciae Lesage, 1980 | Swamp rose-mallow |
| Cricotopus (Cricotopus) mackenziensis Oliver, 1977 | Mearns' mock orange |
| Cricotopus (Cricotopus) macraei Saether, 1971 | Northern sweetvetch |
| Cricotopus (Cricotopus) obscurifuscus Sublette & S..., 1971 | Bottlebrush buckeye |
| Cricotopus (Cricotopus) oceanicus Packard, 1869 | |
| Cricotopus (Cricotopus) olivetus Boesel, 1983 | |
| Cricotopus (Cricotopus) parafuscatus Sublette & S..., 1971 | Bottlebrush buckeye |
| Cricotopus (Cricotopus) patens Hirvenoja, 1973 | |
| Cricotopus (Cricotopus) pedatus Sublette, 1967 | Maples |
| Cricotopus (Cricotopus) pilosellus Brundin, 1956 | |
| Cricotopus (Cricotopus) polaris (Kieffer, 1926) | ⇒ Cricotopus lestralis Edwards, 1924 |
| Cricotopus (Cricotopus) politus Coquillett, 1902 | |
| Cricotopus (Cricotopus) pulchripes Verrall, 1912 | |
| Cricotopus (Cricotopus) slossonae Malloch, 1915 | Maui bur cucumber |
| Cricotopus (Cricotopus) subfuscus Sublette & S..., 1971 | Bottlebrush buckeye |
| Cricotopus (Cricotopus) tibialis (Meigen, 1804) | ⇒ Cricotopus reversus Hirvenoja, 1973 |
| Cricotopus (Cricotopus) triannulatus Macquart, 1826 | |
| Cricotopus (Cricotopus) trifascia Edwards, 1929 | |
| Cricotopus (Cricotopus) tristis (Hirvenoja, 1973) | ⇒ Cricotopus varipes Coquillett, 1902 |
| Cricotopus (Cricotopus) varipes Coquillett, 1902 | |
| Cricotopus (Cricotopus) vierriensis Goetghebuer, 1935 | |
| Cricotopus (Isocladius) flavibasis Malloch, 1915 | Maui bur cucumber |
| Cricotopus (Isocladius) flavipes Johannsen, 1942 | Trans-Pecos chickweed |
| Cricotopus (Isocladius) intersectus Staeger, 1839 | |
| Cricotopus (Isocladius) laetus Hirvenoja, 1973 | Tree poppy |
| Cricotopus (Isocladius) laricomalis Edwards, 1932 | |
| Cricotopus (Isocladius) myriophylli Oliver, 1984 | Littleleaf mock orange |
| Cricotopus (Isocladius) obnixus Walker, 1856 | |
| Cricotopus (Isocladius) obtusus Hirvenoja, 1973 | |
| Cricotopus (Isocladius) ornatus Meigen, 1818 | |
| Cricotopus (Isocladius) pilitarsis Zetterstedt, 1850 | |
| Cricotopus (Isocladius) reversus Hirvenoja, 1973 | Tree poppy |
| Cricotopus (Isocladius) sylvestris Fabricius, 1794 | Phantom midge |
| Cricotopus (Isocladius) tricinctus Meigen, 1818 | |
| Cricotopus (Isocladius) trifasciatus Meigen, 1813 | Non-biting midge |
| Cricotopus (Nostococladius) fuscatus Wirth, 1957 | Downy phlox |
| Cricotopus (Nostococladius) nostocicola Wirth, 1957 | Downy phlox |
| Cricotopus abana Curran, 1929 | |
| Cricotopus belkini Dendy & Subl..., 1959 | |
| Cricotopus beringensis Oliver & Dillon, 1988 | |
| Cricotopus bifurcatus Cranston & O..., 1988 | |
| Cricotopus claripes Hirvenoja, 1973 | |
| Cricotopus curtis Hirvenoja, 1973 | |
| Cricotopus pillosellus Brundin, 1956 | |
| Cricotopus tremula Linnaeus, 1758 | |
| Cricotopus trilobus Oliver & Dillon, 1988 | |
| Eukiefferiella brehmi Gowin, 1943 | |
| Eukiefferiella brevinervis Malloch, 1915 | |
| Eukiefferiella claripennis Lundbeck, 1898 | |
| Eukiefferiella cyanea Thienemann, 1936 | |
| Eukiefferiella devonica Edwards, 1929 | |
| Eukiefferiella gracei Edwards, 1929 | |
| Eukiefferiella minor Edwards, 1929 | |
| Eukiefferiella unicalcar Saether, 1969 | |
| Nanocladius (Nanocladius) anderseni Saether, 1977 | Western sweetvetch |
| Nanocladius (Nanocladius) distinctus Malloch, 1915 | |
| Nanocladius (Nanocladius) parvulus Kieffer, 1909 | |
| Nanocladius (Nanocladius) rectinervis Kieffer, 1911 | |
| Nanocladius (Nanocladius) spiniplenus Saether, 1977 | Western sweetvetch |
| Nanocladius alternantherae Dendy & Subl..., 1959 | |
| Nanocladius branchicolus Saether, 1977 | Western sweetvetch |
| Nanocladius crassicornus Saether, 1977 | Western sweetvetch |
| Nanocladius downesi Steffan, 1965 | |
| Nanocladius incomptus Saether, 1977 | Western sweetvetch |
| Nanocladius mallochi Sublette, 1970 | Red maple |
| Nanocladius minimus Saether, 1977 | Western sweetvetch |
| Nanocladius sordens Johannsen, 1905 | |
| Orthocladius (Eudactylocladius) dubitatus Johannsen, 1942 | Trans-Pecos chickweed |
| Orthocladius (Eudactylocladius) gelidorum Kieffer, 1923 | |
| Orthocladius (Eudactylocladius) gelidus Kieffer, 1922 | |
| Orthocladius (Eudactylocladius) nanseni (Kieffer, 1926) | ⇒ Orthocladius gelidorum Kieffer, 1923 |
| Orthocladius (Euorthocladius) abiskoensis Edwards, 1937 | |
| Orthocladius (Euorthocladius) difficilis Lundbeck, 1898 | |
| Orthocladius (Euorthocladius) frigidus Zetterstedt, 1838 | |
| Orthocladius (Euorthocladius) rivicola Kieffer, 1911 | Quill fameflower |
| Orthocladius (Euorthocladius) rivulorum Kieffer, 1909 | Okanogan fameflower |
| Orthocladius (Euorthocladius) saxosus Tokunaga, 1939 | |
| Orthocladius (Euorthocladius) thienemanni Kieffer, 1906 | Pygmy fameflower |
| Orthocladius (Orthocladius) annectens Saether, 1969 | Alpine sweetvetch |
| Orthocladius (Orthocladius) appersoni Soponis, 1977 | Bittersweet |
| Orthocladius (Orthocladius) barbicornis Linnaeus, 1767 | |
| Orthocladius (Orthocladius) carlatus Roback, 1957 | |
| Orthocladius (Orthocladius) charensis Soponis, 1977 | Bittersweet |
| Orthocladius (Orthocladius) clarkei Soponis, 1977 | Bittersweet |
| Orthocladius (Orthocladius) cooki Soponis, 1977 | Bittersweet |
| Orthocladius (Orthocladius) decoratus Holmgren, 1869 | |
| Orthocladius (Orthocladius) dentifer Brundin, 1947 | Chironomid |
| Orthocladius (Orthocladius) dorenus Roback, 1957 | Cusp clover |
| Orthocladius (Orthocladius) ferringtoni Soponis, 1983 | |
| Orthocladius (Orthocladius) groenlandensis Goetghebuer, 1933 | |
| Orthocladius (Orthocladius) hazenensis Soponis, 1977 | Bittersweet |
| Orthocladius (Orthocladius) hellenthali Soponis, 1977 | Bittersweet |
| Orthocladius (Orthocladius) knabeni Goetghebuer, 1933 | |
| Orthocladius (Orthocladius) knuthi Soponis, 1977 | Bittersweet |
| Orthocladius (Orthocladius) lapponicus Goetghebuer, 1940 | Dotted polypody |
| Orthocladius (Orthocladius) mallochi Kieffer, 1919 | |
| Orthocladius (Orthocladius) manitobensis Saether, 1969 | Alpine sweetvetch |
| Orthocladius (Orthocladius) mixtus (Holmgren, 1869) | ⇒ Orthocladius decoratus Holmgren, 1869 |
| Orthocladius (Orthocladius) nigritus (Malloch, 1915) | ⇒ Paratrichocladius spiesi Ashe & O´Con..., 2012 |
| Orthocladius (Orthocladius) oblidens Walker, 1856 | |
| Orthocladius (Orthocladius) obumbratus Johannsen, 1905 | Disphyma |
| Orthocladius (Orthocladius) oliveri Soponis, 1977 | Bittersweet |
| Orthocladius (Orthocladius) robacki Soponis, 1977 | Bittersweet |
| Orthocladius (Orthocladius) rubicundus Meigen, 1818 | |
| Orthocladius (Orthocladius) smolandicus Brundin, 1947 | |
| Orthocladius (Orthocladius) spitzbergensis Kieffer, 1919 | |
| Orthocladius (Orthocladius) subletti Soponis, 1977 | Bittersweet |
| Orthocladius (Orthocladius) trigonolabis Edwards, 1924 | Palmer's asterella |
| Orthocladius (Orthocladius) wiensi Saether, 1969 | Alpine sweetvetch |
| Orthocladius (Pogonocladius) consobrinus Holmgren, 1869 | |
| Orthocladius (Symposiocladius) lignicola Kieffer, 1915 | Redmaids |
| Orthocladius albidohalteralis (Malloch, 1915) | ⇒ Orthocladiinae albidohalteralis Malloch, 1915 |
| Orthocladius anteilis Roback, 1957 | |
| Orthocladius bifasciatus (Malloch, 1918) | ⇒ Orthocladiinae bifasciatus Malloch, 1918 |
| Orthocladius clepsydrus (Coquillett, 1902) | ⇒ Orthocladiinae clepsydrus Coquillett, 1902 |
| Orthocladius coffmani Soponis, 1990 | |
| Orthocladius glacialis (Kieffer, 1926) | ⇒ Orthocladiinae glacialis Kieffer, 1922 |
| Orthocladius minutus (Zetterstedt, 1850) | ⇒ Orthocladiinae minutus Goetghebuer, 1934 |
| Orthocladius roussellae Soponis, 1990 | |
| Rheocricotopus (Psilocricotopus) chapmani Edwards, 1935 | |
| Rheocricotopus (Psilocricotopus) glabricollis Meigen, 1830 | |
| Rheocricotopus (Rheocricotopus) effusus Walker, 1856 | |
| Rheocricotopus amplicristatus Saether, 1985 | |
| Rheocricotopus conflusirus Saether, 1985 | |
| Rheocricotopus effusoides Saether, 1985 | |
| Rheocricotopus eminellobus Saether, 1969 | Alpine sweetvetch |
| Rheocricotopus pauciseta Saether, 1969 | Alpine sweetvetch |
| Rheocricotopus robacki Beck & Beck, 1964 | |
| Rheocricotopus tuberculatus Caldwell, 1984 | |
| Rheocricotopus unidentatus Saether & Sc..., 1988 | |
