| Achradocera arcuata Van Duzee, 1924 | Fly |
| Achradocera arcuatus Van Duzee, 1924 | |
| Achradocera barbata Loew, 1861 | |
| Achradocera barbatus Loew, 1861 | |
| Argyra abdominalis Say, 1829 | |
| Argyra albicans Loew, 1861 | |
| Argyra albicoxa Van Duzee, 1925 | Oregon yampah |
| Argyra albiventris Loew, 1864 | |
| Argyra aldrichi Johnson, 1904 | Columbian stitchwort |
| Argyra angustata Van Duzee, 1925 | Oregon yampah |
| Argyra argentiventris Van Duzee, 1925 | Oregon yampah |
| Argyra barbipes Van Duzee, 1925 | Oregon yampah |
| Argyra basalis Van Duzee, 1926 | |
| Argyra brevipes Aldrich, 1904 | Oregon yampah |
| Argyra calceata Loew, 1861 | |
| Argyra calcitrans Loew, 1861 | |
| Argyra californica Van Duzee, 1925 | Oregon yampah |
| Argyra ciliata Van Duzee, 1924 | Narrow-seeded yampah |
| Argyra cingulata Loew, 1861 | |
| Argyra condomina Harmston & K..., 1946 | |
| Argyra currani Van Duzee, 1925 | Oregon yampah |
| Argyra cylindrica Loew, 1861 | |
| Argyra dakotensis Robinson, 1960 | |
| Argyra fasciventris Van Duzee, 1930 | Parsley |
| Argyra femoralis Van Duzee, 1925 | Oregon yampah |
| Argyra flavicornis Van Duzee, 1925 | Oregon yampah |
| Argyra flavicoxa Van Duzee, 1925 | Oregon yampah |
| Argyra flavipes Van Duzee, 1925 | Oregon yampah |
| Argyra grayi Robinson, 1964 | Smooth yellow vetch |
| Argyra hirta Van Duzee, 1925 | Oregon yampah |
| Argyra idahona Harmston & K..., 1946 | |
| Argyra ilonae Gosseries, 1988 | |
| Argyra involuta Van Duzee, 1925 | Oregon yampah |
| Argyra johnsoni Van Duzee, 1925 | Oregon yampah |
| Argyra minuta Loew, 1861 | |
| Argyra nigricoxa Van Duzee, 1925 | Oregon yampah |
| Argyra nigripes Loew, 1864 | |
| Argyra nigriventris Van Duzee, 1925 | Oregon yampah |
| Argyra obscura Van Duzee, 1925 | Oregon yampah |
| Argyra pilosicornis Walker, 1849 | |
| Argyra robusta Johnson, 1906 | California sandwort |
| Argyra scutellaris Van Duzee, 1925 | Oregon yampah |
| Argyra sericata Van Duzee, 1925 | Oregon yampah |
| Argyra setipes Van Duzee, 1925 | Oregon yampah |
| Argyra similis Harmston & K..., 1940 | |
| Argyra spina Van Duzee, 1925 | Oregon yampah |
| Argyra splendens Van Duzee, 1933 | Masterwort |
| Argyra thoracia Van Duzee, 1925 | Oregon yampah |
| Argyra thoracica Van Duzee, 1925 | |
| Argyra utahna Harmston, 1951 | Higuillo |
| Argyra velutina Van Duzee, 1925 | Oregon yampah |
| Asyndetus ammophilus Loew, 1869 | Juniper globemallow |
| Asyndetus appendiculatus Loew, 1869 | Juniper globemallow |
| Asyndetus archboldi Robinson & D..., 1997 | |
| Asyndetus brevimanus Van Duzee, 1923 | |
| Asyndetus carcinophilus Parent, 1937 | Long-legged fly |
| Asyndetus caudatus Van Duzee, 1916 | California yampah |
| Asyndetus cornutus Van Duzee, 1916 | California yampah |
| Asyndetus crassipodus Harmston, 1968 | |
| Asyndetus disjunctus Van Duzee, 1923 | |
| Asyndetus flavipalpus Van Duzee, 1932 | |
| Asyndetus harbeckii Van Duzee, 1914 | Bolander's yampah |
| Asyndetus hardyi Robinson, 1964 | Smooth yellow vetch |
| Asyndetus interruptus Loew, 1861 | |
| Asyndetus johnsoni Van Duzee, 1916 | California yampah |
| Asyndetus latus Van Duzee, 1916 | California yampah |
| Asyndetus nevadenis | |
| Asyndetus nevadensis Harmston, 1968 | |
| Asyndetus nigripes Van Duzee, 1916 | California yampah |
| Asyndetus occidentalis Van Duzee, 1919 | Gairdner's yampah |
| Asyndetus oregonensis Harmston, 1966 | Marigold pepper |
| Asyndetus parvicornis Van Duzee, 1932 | |
| Asyndetus scopifer Harmston, 1952 | Guyanese pepper |
| Asyndetus scopiferus | |
| Asyndetus severeni | |
| Asyndetus severini Harmston & K..., 1939 | |
| Asyndetus singularis Van Duzee, 1923 | |
| Asyndetus spinitarsis Harmston, 1951 | Higuillo |
| Asyndetus spinosus Van Duzee, 1925 | |
| Asyndetus syntormoides Wheeler, 1899 | Heartleaf groundcherry |
| Asyndetus terminalis Van Duzee, 1923 | |
| Asyndetus texanus Van Duzee, 1916 | California yampah |
| Asyndetus utahensis Harmston & K..., 1942 | |
| Chrysotus (Chrysotus) austrotropicus Bickel, 2013 | |
| Chrysotus (Chrysotus) bellax Parent, 1933 | |
| Chrysotus (Chrysotus) crosbyi Van Duzee, 1924 | Longlegged fly |
| Chrysotus (Chrysotus) elegans (Meigen, 1830) | ⇒ Lamprochromus bifasciatus Macquart, 1827 |
| Chrysotus (Chrysotus) pallidipalpus (Van Duzee, 1933) | ⇒ Chrysotus longipalpus Edwards, 1932 |
| Chrysotus (Chrysotus) pilbarensis Bickel, 2013 | |
| Chrysotus (Chrysotus) vulgaris Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus affinis Loew, 1861 | |
| Chrysotus agalmus Harmston & Rapp, 1968 | |
| Chrysotus albohirtus Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus aldrichi Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus annulatus (Van Duzee, 1924) | ⇒ Diaphorus annulatus Macquart, 1842 |
| Chrysotus anomalus Malloch, 1914 | Gray's bur cucumber |
| Chrysotus arcuatus (Van Duzee, 1924) | ⇒ Achradocera arcuatus Van Duzee, 1924 |
| Chrysotus argentatus Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus arkansensis Van Duzee, 1930 | Parsley |
| Chrysotus atratus Van Duzee, 1930 | Parsley |
| Chrysotus auratus Loew, 1861 | |
| Chrysotus badius Van Duzee, 1932 | |
| Chrysotus bajaensis Harmston, 1968 | |
| Chrysotus barbatus Loew, 1861 | |
| Chrysotus barbipes Van Duzee, 1932 | |
| Chrysotus bellulus Van Duzee, 1932 | |
| Chrysotus bellus Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus bermudensis Johnson, 1914 | |
| Chrysotus caerulus Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus californicus Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus canadensis Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus carolinensis Robinson, 1964 | |
| Chrysotus caroliniensis Robinson, 1964 | Smooth yellow vetch |
| Chrysotus caudatulus Van Duzee, 1932 | |
| Chrysotus caudatus (Van Duzee, 1924) | ⇒ Chrysotus caudatulus Van Duzee, 1932 |
| Chrysotus chlanoflavus Harmston & K..., 1940 | |
| Chrysotus choricus Wheeler, 1890 | Coastal groundcherry |
| Chrysotus cilipes Meigen, 1824 | |
| Chrysotus clypeatus Robinson, 1967 | Pygmyflower vetch |
| Chrysotus coloradensis Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus contractus Van Duzee, 1929 | |
| Chrysotus convergens Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus cornutus Loew, 1862 | Jone's globemallow |
| Chrysotus costalis Loew, 1861 | |
| Chrysotus cressoni Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus currani Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus dakotensis Harmston, 1952 | Guyanese pepper |
| Chrysotus deremptus Walker, 1849 | |
| Chrysotus discolor Loew, 1861 | |
| Chrysotus distinctus Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus dividuus Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus dorsalis Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus dubius (Van Duzee, 1924) | ⇒ Chrysotus hirtipes Van Duzee, 1924 |
| Chrysotus emarginatus Van Duzee, 1928 | Parish's yampah |
| Chrysotus excisus Aldrich, 1896 | |
| Chrysotus exilis Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus flavicauda Van Duzee, 1928 | Parish's yampah |
| Chrysotus flavipalpis Van Duzee, 1930 | Parsley |
| Chrysotus flavisetus Malloch, 1914 | Gray's bur cucumber |
| Chrysotus furcatus Robinson, 1964 | Smooth yellow vetch |
| Chrysotus grandicornis Parent, 1930 | |
| Chrysotus halteralis Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus harmstoni Meuffels & G..., 1999 | |
| Chrysotus hastatus Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus hawaiiensis (Grimshaw, 1901) | ⇒ Eurynogaster hawaiiensis Grimshaw, 1901 |
| Chrysotus hilburni Woodley, 1996 | |
| Chrysotus hirtipes Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus humilis Parent, 1928 | |
| Chrysotus idahoensis Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus incertus Walker, 1849 | Largeflower milkweed |
| Chrysotus intrudus Harmston, 1951 | Higuillo |
| Chrysotus johnsoni Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus kansensis Harmston, 1952 | Guyanese pepper |
| Chrysotus laesus Wiedemann, 1817 | |
| Chrysotus lamellifer Robinson, 1964 | Smooth yellow vetch |
| Chrysotus litoralis Robinson, 1964 | Smooth yellow vetch |
| Chrysotus litorea | |
| Chrysotus longihirtus Van Duzee, 1932 | |
| Chrysotus longimanus Loew, 1861 | |
| Chrysotus longipalpus Edwards, 1932 | Long-legged fly |
| Chrysotus magnicornis (Van Duzee, 1924) | ⇒ Chrysotus grandicornis Parent, 1930 |
| Chrysotus major Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus megaloceras Meuffels & G..., 1999 | |
| Chrysotus mexicanus Robinson, 1967 | |
| Chrysotus millardi Meuffels & G..., 1999 | |
| Chrysotus neglectus Wiedemann, 1817 | |
| Chrysotus neopicticornis Robinson, 1967 | Pygmyflower vetch |
| Chrysotus nigriciliatus Van Duzee, 1933 | Masterwort |
| Chrysotus nigrifrons Parent, 1929 | |
| Chrysotus nubilus Say, 1829 | |
| Chrysotus nudipes Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus nudus Harmston & K..., 1963 | Black pepper |
| Chrysotus obliquus Loew, 1861 | |
| Chrysotus pallipes Loew, 1861 | |
| Chrysotus palpiger Wheeler, 1890 | |
| Chrysotus parthenus (Hardy & Kohn, 1964) | ⇒ Diaphorus parthenus Hardy & Kohn, 1964 |
| Chrysotus parvicornis Van Duzee, 1924 | |
| Chrysotus parvulus Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus pectoralis Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus philtrum Melander, 1903 | Horseradish |
| Chrysotus picticornis Loew, 1862 | Jone's globemallow |
| Chrysotus pomeroyi Parent, 1934 | Erect cinquefoil |
| Chrysotus rauterbergi Wheeler, 1890 | |
| Chrysotus robustus Robinson Rob..., 0 | |
| Chrysotus sagittarius Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus saxatilis (Grimshaw, 1901) | ⇒ Elmoia saxatilis Grimshaw, 1901 |
| Chrysotus silvicola Harmston, 1951 | Higuillo |
| Chrysotus simulans Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus spectabilis Loew, 1861 | |
| Chrysotus spiniger Grimshaw, 1901 | |
| Chrysotus spinigera (Grimshaw, 1901) | ⇒ Eurynogaster spiniger Grimshaw, 1901 |
| Chrysotus subcostatus Loew, 1864 | |
| Chrysotus subjectus Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus tarsalis Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus teapanus Aldrich, 1901 | |
| Chrysotus tennesseensis Robinson, 1964 | Smooth yellow vetch |
| Chrysotus terminalis Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus tibialis Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus triangularis Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus vanduzeei Robinson, 1964 | Spring vetch |
| Chrysotus varipes Van Duzee, 1924 | Narrow-seeded yampah |
| Chrysotus vividus Loew, 1864 | |
| Chrysotus wisconsinensis Wheeler, 1890 | Coastal groundcherry |
| Chrysotus xanthocal Harmston & K..., 1940 | |
| Diaphorus (Diaphorus) subsejunctus Loew, 1866 | |
| Diaphorus subsejunctus deceptivus Aldrich, 1901 | |
| Diaphorus adustus (Wiedemann, 1830) | ⇒ Diaphorus fuscus Van Duzee, 1921 |
| Diaphorus aldrichi Van Duzee, 1915 | Bolander's yampah |
| Diaphorus alienus Van Duzee, 1915 | Bolander's yampah |
| Diaphorus annulatus Macquart, 1842 | |
| Diaphorus antennatus Van Duzee, 1915 | |
| Diaphorus argentifacies Van Duzee, 1932 | |
| Diaphorus argentipalpis Van Duzee, 1923 | |
| Diaphorus australis Van Duzee, 1915 | Bolander's yampah |
| Diaphorus bakeri Robinson, 1967 | Pygmyflower vetch |
| Diaphorus basalis Van Duzee, 1915 | Bolander's yampah |
| Diaphorus blandus Parent, 1934 | |
| Diaphorus brevinervis Van Duzee, 1924 | Narrow-seeded yampah |
| Diaphorus californicus Van Duzee, 1917 | Red-root yampah |
| Diaphorus canus Robinson, 1964 | Smooth yellow vetch |
| Diaphorus coerulescens Loew, 1857 | |
| Diaphorus consanguineus Harmston & K..., 1963 | Black pepper |
| Diaphorus crinipes (Robinson, 1964) | ⇒ Diaphorus pseudopacus Robinson, 1964 |
| Diaphorus deceptivus (Aldrich, 1901) | ⇒ Diaphorus subsejunctus Loew, 1866 |
| Diaphorus dimidiatus Aldrich, 1896 | |
| Diaphorus funeralis Parent, 1929 | |
| Diaphorus fuscus Van Duzee, 1921 | Howell's yampah |
| Diaphorus garnetensis Bickel, 2013 | |
| Diaphorus gibbosus Van Duzee, 1915 | Bolander's yampah |
| Diaphorus hirsutus Van Duzee, 1921 | Howell's yampah |
| Diaphorus infuscatus (Van Duzee, 1915) | ⇒ Diaphorus leucostoma Loew, 1861 |
| Diaphorus inornatus Van Duzee, 1917 | Red-root yampah |
| Diaphorus intermedius (Robinson, 1964) | ⇒ Pseudaptinus intermedius Chaudoir, 1872 |
| Diaphorus iowensis Robinson, 1964 | Smooth yellow vetch |
| Diaphorus junctus Van Duzee, 1917 | Red-root yampah |
| Diaphorus karijini Bickel, 2013 | |
| Diaphorus laffooni Robinson, 1964 | Smooth yellow vetch |
| Diaphorus lamellatus Loew, 1864 | |
| Diaphorus latifacies Van Duzee, 1932 | |
| Diaphorus leucostoma Loew, 1861 | |
| Diaphorus lowensis | |
| Diaphorus millardi Meuffels & G..., 1999 | |
| Diaphorus mundus Loew, 1861 | |
| Diaphorus nigrescens Aldrich, 1901 | |
| Diaphorus nigricans Meigen, 1824 | Prostrate yellowcress |
| Diaphorus nudus Van Duzee, 1917 | Red-root yampah |
| Diaphorus occidentalis Van Duzee, 1915 | Bolander's yampah |
| Diaphorus opacus (Loew, 1861) | ⇒ Diaphorus nigricans Meigen, 1824 |
| Diaphorus parapraestans praestans Parent, 1933 | |
| Diaphorus parmatus Van Duzee, 1915 | Bolander's yampah |
| Diaphorus parthenus Hardy & Kohn, 1964 | |
| Diaphorus pseudopacus Robinson, 1964 | |
| Diaphorus quadratus Van Duzee, 1915 | Bolander's yampah |
| Diaphorus remulus Van Duzee, 1915 | Bolander's yampah |
| Diaphorus repandus Van Duzee, 1915 | Bolander's yampah |
| Diaphorus similis Van Duzee, 1915 | Bolander's yampah |
| Diaphorus simplex Aldrich, 1896 | |
| Diaphorus slossonae Van Duzee, 1932 | |
| Diaphorus snowii Van Duzee, 1917 | Red-root yampah |
| Diaphorus sodalis Loew, 1861 | |
| Diaphorus sparsus Van Duzee, 1917 | Red-root yampah |
| Diaphorus spectabilis Loew, 1861 | |
| Diaphorus spinitalus Van Duzee, 1923 | Lemmon's yampah |
| Diaphorus texanus Van Duzee, 1932 | |
| Diaphorus triangulatus Van Duzee, 1915 | Bolander's yampah |
| Diaphorus trivittatus Van Duzee, 1915 | Bolander's yampah |
| Diaphorus usitatus Van Duzee, 1915 | Bolander's yampah |
| Diaphorus variabilis Van Duzee, 1915 | Bolander's yampah |
| Diaphorus versicolor Van Duzee, 1932 | |
| Diaphorus vittatas (Van Duzee, 1915) | ⇒ Diaphorus leucostoma Loew, 1861 |
| Diaphorus vulsus Walker, 1861 | Red-root yampah |
| Keirosoma slossonae Van Duzee, 1933 | Masterwort |
| Nematoproctus cylindricus Van Duzee, 1924 | |
| Nematoproctus flavicoxa Van Duzee, 1930 | Parsley |
| Nematoproctus jucundus Van Duzee, 1927 | Parish's yampah |
| Nematoproctus metallicus Van Duzee, 1930 | Parsley |
| Nematoproctus terminalis Van Duzee, 1914 | |
| Nematoproctus varicoxa Van Duzee, 1930 | Parsley |
| Nematoproctus venustus Melander, 1900 | Mouseear cress |
