| Oncocephalus acutangulus Reuter, 1882 | Jawleaf lupine |
| Oncocephalus acutangulus acutangulus Reuter, 1882 | |
| Oncocephalus acutangulus cubitalis Dispons, 1965 | |
| Oncocephalus acutangulus didymus Dispons, 1965 | |
| Oncocephalus acutangulus perfectus Dispons, 1965 | |
| Oncocephalus acutangulus radialis Dispons, 1965 | |
| Oncocephalus acutangulus tingitanus Dispons, 1950 | |
| Oncocephalus afghanus Hoberlandt, 1961 | |
| Oncocephalus alberti Schouteden, 1931 | |
| Oncocephalus albicostatus Kiritshenko, 1914 | |
| Oncocephalus albosetosus Villiers, 1971 | |
| Oncocephalus amen (Kirkaldy, 1905) | ⇒ Oncocephalus velutinus Montrouzier, 1864 |
| Oncocephalus angolensis Villiers, 1960 | |
| Oncocephalus angulatus Reuter, 1882 | Jawleaf lupine |
| Oncocephalus angustatus Horváth, 1892 | |
| Oncocephalus anniei Ambrose & Ve..., 1989 | |
| Oncocephalus annulipes Stål, 1855 | Springfishes |
| Oncocephalus annulirostris Reuter, 1882 | Jawleaf lupine |
| Oncocephalus annulirostris annulirostris Reuter, 1882 | |
| Oncocephalus annulirostris excelsus Dispons, 1972 | |
| Oncocephalus antipodus Reuter, 1882 | Jawleaf lupine |
| Oncocephalus apiculatus Reuter, 1882 | Jawleaf lupine |
| Oncocephalus armipes Herrich-Scha..., 1853 | |
| Oncocephalus asiranus Miller, 1954 | |
| Oncocephalus asper Miller, 1957 | |
| Oncocephalus aspericollis Reuter, 1861 | Jawleaf lupine |
| Oncocephalus assimilis Reuter, 1882 | Jawleaf lupine |
| Oncocephalus astridae Schouteden, 1929 | |
| Oncocephalus astutus Zhang & al., 1994 | |
| Oncocephalus aterrimus Distant, 1909 | |
| Oncocephalus aurivillii Reuter, 1882 | Jawleaf lupine |
| Oncocephalus baghdadus Linnavuori, 1986 | |
| Oncocephalus baramensis Miller, 1940 | Alpine false candytuft |
| Oncocephalus bastardi Villiers, 1948 | |
| Oncocephalus bengalensis Y.C.Gupta & ..., 2005 | Elk River crayfish |
| Oncocephalus beylensis Villiers, 1965 | |
| Oncocephalus biclavatus Dispons, 1972 | |
| Oncocephalus biguttula Horváth, 1901 | |
| Oncocephalus bipartitus Horváth, 1911 | |
| Oncocephalus bipunctatus Villiers, 1952 | |
| Oncocephalus borneensis Miller, 1940 | Alpine false candytuft |
| Oncocephalus bos Miller, 1940 | Alpine false candytuft |
| Oncocephalus brachymerus Reuter, 1882 | Jawleaf lupine |
| Oncocephalus breddini Miller, 1957 | |
| Oncocephalus breviscutum Reuter, 1882 | Jawleaf lupine |
| Oncocephalus buruensis Miller, 1954 | |
| Oncocephalus calcaratus Dispons, 1972 | |
| Oncocephalus celator Miller, 1948 | White princesplume |
| Oncocephalus chamundcus Livingstone ..., 1989 | |
| Oncocephalus cincticrus Reuter, 1882 | Jawleaf lupine |
| Oncocephalus cingalensis Walker, 1873 | Sidecluster milkweed |
| Oncocephalus clairi Schouteden, 1951 | |
| Oncocephalus clavipes Hesse, 1925 | |
| Oncocephalus cliens Miller, 1956 | |
| Oncocephalus coartatus Dispons, 1972 | |
| Oncocephalus collarti Schouteden, 1931 | |
| Oncocephalus confusus Reuter, 1882 | Jawleaf lupine |
| Oncocephalus crassus Dispons, 1972 | |
| Oncocephalus curvirostris Moulet, 2003 | |
| Oncocephalus curvispina (Reuter, 1882) | ⇒ Oncocephalus velutinus Montrouzier, 1864 |
| Oncocephalus dasycnemis Reuter, 1882 | Jawleaf lupine |
| Oncocephalus demangei Villiers, 1968 | |
| Oncocephalus dilatatus Reuter, 1882 | Jawleaf lupine |
| Oncocephalus disparilis Miller, 1948 | White princesplume |
| Oncocephalus dubius Miller, 1957 | |
| Oncocephalus duvivieri Schouteden, 1913 | |
| Oncocephalus electissimus Dispons, 1972 | |
| Oncocephalus elegans Villiers, 1948 | |
| Oncocephalus emmerizi Villiers, 1961 | |
| Oncocephalus enallus Swanson, 2017 | |
| Oncocephalus erectus Van Duzee, 1923 | Lemmon's yampah |
| Oncocephalus felix Miller, 1956 | |
| Oncocephalus femoratus Reuter, 1882 | Jawleaf lupine |
| Oncocephalus fleutiauxi Villiers, 1948 | |
| Oncocephalus fokkeri Horváth, 1896 | |
| Oncocephalus funeralis Distant, 1919 | |
| Oncocephalus fuscescens Reuter, 1882 | Jawleaf lupine |
| Oncocephalus fuscicornis Reuter, 1882 | Jawleaf lupine |
| Oncocephalus fuscinotum Reuter, 1882 | Jawleaf lupine |
| Oncocephalus fuscipes Reuter, 1882 | Jawleaf lupine |
| Oncocephalus fuscirostris Stål, 1874 | |
| Oncocephalus ganalensis Schouteden, 1906 | |
| Oncocephalus gedrosiae Dispons, 1964 | |
| Oncocephalus geniculatus Stål, 1872 | |
| Oncocephalus germari Reuter, 1882 | Jawleaf lupine |
| Oncocephalus gillonae Villiers, 1965 | |
| Oncocephalus gilvostriatus Moulet, 2005 | |
| Oncocephalus gryps Miller, 1948 | White princesplume |
| Oncocephalus gularis Reuter, 1882 | Jawleaf lupine |
| Oncocephalus gutturosus Dispons, 1965 | |
| Oncocephalus heissi Ishikawa, Ca..., 2006 | |
| Oncocephalus herzi Jakovlev, 1893 | Jack pine budworm |
| Oncocephalus hierosolymensis Moulet, 2001 | |
| Oncocephalus hirsutus Giacchi, 1984 | |
| Oncocephalus ifanus Villiers, 1963 | |
| Oncocephalus iguchii Iguchi, 1908 | |
| Oncocephalus impavidus Miller, 1948 | White princesplume |
| Oncocephalus impexus Miller, 1948 | White princesplume |
| Oncocephalus impictipes Jakovlev, 1885 | |
| Oncocephalus impudicus Reuter, 1882 | Jawleaf lupine |
| Oncocephalus impurus Hsiao, 1977 | |
| Oncocephalus infuscatus Giacchi, 1984 | |
| Oncocephalus insignis Gerstaecker, 1892 | |
| Oncocephalus internuntius Giacchi, 1984 | |
| Oncocephalus israelensis Moulet, 2001 | |
| Oncocephalus jakowleffi Bergroth, 1890 | |
| Oncocephalus kerkvoordeae Schouteden, 1951 | |
| Oncocephalus klugi Distant, 1904 | |
| Oncocephalus lagaei Schouteden, 1951 | |
| Oncocephalus langkawiensis Miller, 1940 | Alpine false candytuft |
| Oncocephalus larvaeformis Villiers, 1964 | |
| Oncocephalus leopoldi Schouteden, 1929 | |
| Oncocephalus lineosus Distant, 1904 | |
| Oncocephalus linnavuorii Moulet, 2001 | |
| Oncocephalus luluae Schouteden, 1951 | |
| Oncocephalus lutulentus Miller, 1956 | |
| Oncocephalus magnus Moulet, 2003 | |
| Oncocephalus maiusculus Giacchi, 1984 | |
| Oncocephalus maroccanus Wagner, 1961 | |
| Oncocephalus mesopotamicus Dispons, 1970 | |
| Oncocephalus micropterus Horváth, 1889 | |
| Oncocephalus milleri Lindberg, 1953 | Texas poppy mallow |
| Oncocephalus milloti Villiers, 1948 | |
| Oncocephalus minimus Miller, 1950 | Oregon princesplume |
| Oncocephalus mirei Villiers, 1960 | |
| Oncocephalus misellus Dispons, 1968 | |
| Oncocephalus mitis Ren, 1985 | |
| Oncocephalus mochis Maldonado, 1995 | |
| Oncocephalus modestus Reuter, 1882 | Jawleaf lupine |
| Oncocephalus montalbanus Miller, 1948 | White princesplume |
| Oncocephalus morosus Distant, 1904 | |
| Oncocephalus muelleri Mancini, 1946 | |
| Oncocephalus mygdonius Dispons, 1968 | |
| Oncocephalus naboides Walker, 1873 | Sidecluster milkweed |
| Oncocephalus nigricollis Horváth, 1911 | |
| Oncocephalus nigricornis Linnavuori, 1986 | |
| Oncocephalus nigrispinus Stål, 1871 | |
| Oncocephalus nimbensis Villiers, 1948 | |
| Oncocephalus notatus Klug, 1830 | |
| Oncocephalus nubilus Van Duzee, 1914 | Bolander's yampah |
| Oncocephalus obscurus Reuter, 1882 | Jawleaf lupine |
| Oncocephalus obsoletus Klug, 1830 | |
| Oncocephalus ocularis Horváth, 1898 | |
| Oncocephalus ovatus Villiers, 1961 | |
| Oncocephalus pacificus (Kirkaldy, 1908) | ⇒ Oncocephalus velutinus Montrouzier, 1864 |
| Oncocephalus paganus Miller, 1957 | |
| Oncocephalus painei Miller, 1940 | Alpine false candytuft |
| Oncocephalus parvulus Reuter, 1882 | Jawleaf lupine |
| Oncocephalus paternus P.V. Putshkov, 1984 | |
| Oncocephalus pauliani Villiers, 1961 | |
| Oncocephalus pauper Schouteden, 1913 | |
| Oncocephalus peninsularis Maldonado, 1995 | |
| Oncocephalus pennatulus Dispons, 1962 | |
| Oncocephalus pericarti Moulet, 2001 | |
| Oncocephalus philippinus Lethierry, 1877 | |
| Oncocephalus picturatus Distant, 1904 | |
| Oncocephalus pilicornis Herrich-Scha..., 1835 | |
| Oncocephalus pilosulus Reuter, 1882 | Jawleaf lupine |
| Oncocephalus plumicornis Germar, 1822 | |
| Oncocephalus plumipes Puton, 1884 | |
| Oncocephalus posthi Villiers, 1948 | |
| Oncocephalus pubiventris Miller, 1950 | Oregon princesplume |
| Oncocephalus pudicus Hsiao, 1977 | |
| Oncocephalus purus Hsiao, 1977 | |
| Oncocephalus pusillus Miller, 1956 | |
| Oncocephalus putoni Reuter, 1882 | Jawleaf lupine |
| Oncocephalus quadrivittatus Giacchi & Ma..., 1983 | |
| Oncocephalus quinquedecimspinulosus Reuter, 1882 | Jawleaf lupine |
| Oncocephalus quotidianus Bergroth, 1916 | |
| Oncocephalus regulus Miller, 1956 | |
| Oncocephalus remaudierei Villiers, 1954 | |
| Oncocephalus ribesi Moulet, 2011 | |
| Oncocephalus rodhaini Schouteden, 1931 | |
| Oncocephalus rutshuricus Schouteden, 1944 | St. Croix Racer |
| Oncocephalus sahelensis Villiers, 1948 | |
| Oncocephalus sarawakensis Miller, 1940 | Alpine false candytuft |
| Oncocephalus scaber Miller, 1948 | White princesplume |
| Oncocephalus schioedtei Reuter, 1882 | Jawleaf lupine |
| Oncocephalus schmitzi Villiers, 1972 | |
| Oncocephalus schoutedeni Villiers, 1960 | |
| Oncocephalus scutellaris Reuter, 1882 | Jawleaf lupine |
| Oncocephalus semiramidae Kirkaldy, 1873 | Seashore orach |
| Oncocephalus signoreti Reuter, 1882 | Jawleaf lupine |
| Oncocephalus simillimus Reuter, 1888 | Soft lupine |
| Oncocephalus sordidus Stål, 1855 | Springfishes |
| Oncocephalus squalidus Herrich-Scha..., 1848 | |
| Oncocephalus stalii Wallengren, 1875 | |
| Oncocephalus straeleni Villiers, 1954 | |
| Oncocephalus striaticollis Villiers, 1964 | |
| Oncocephalus striatus Villiers, 1960 | |
| Oncocephalus stysi Moulet, 2008 | Pacific Townsend's big-eared bat |
| Oncocephalus subangulatus Villiers, 1961 | |
| Oncocephalus subspinosus Amyot & Serv..., 1843 | |
| Oncocephalus sufflavus Villiers, 1952 | |
| Oncocephalus taurus Miller, 1940 | Alpine false candytuft |
| Oncocephalus termezanus Kiritshenko, 1914 | |
| Oncocephalus thoracatus Dispons, 1972 | |
| Oncocephalus thoracicus Fieber, 1861 | |
| Oncocephalus tibialis Reuter, 1882 | Jawleaf lupine |
| Oncocephalus trichocnemis Horváth, 1911 | |
| Oncocephalus trochantericus Bergroth, 1914 | |
| Oncocephalus validispinis Reuter, 1882 | Jawleaf lupine |
| Oncocephalus vaneyeni Schouteden, 1951 | |
| Oncocephalus variabilis Maldonado, 1995 | |
| Oncocephalus variegatus Reuter, 1882 | Jawleaf lupine |
| Oncocephalus vaulogeri Montandon, 1892 | |
| Oncocephalus velutinus Montrouzier, 1864 | |
| Oncocephalus ventralis Walker, 1873 | Sidecluster milkweed |
| Oncocephalus vescerae Dispons, 1965 | |
| Oncocephalus viator Miller, 1950 | Oregon princesplume |
| Oncocephalus vicinalis Dispons, 1882 | |
| Oncocephalus walkeri Miller, 1952 | |
| Oncocephalus wangi Ren, 1992 | |
| Oncocephalus wittei Schouteden, 1944 | St. Croix Racer |
| Oncocephalus woodroffei Putshkov, 19..., 1987 | |
| Oncocephalus yashpali Livingstone ..., 1989 | |
| Oncocephalus zavattarii Mancini, 1939 | |
| Oncocephalus zumpti Schouteden, 1943 | |
