Megachilidae Schenk, 1860
Chelostoma aureocinctum (Bingham, 1897)
Chelostoma bernardinum Michener, 1938
Chelostoma bytinskii (Mavromoustakis, 1948)
Chelostoma californicum Cresson, 1878
Chelostoma campanularum (Kirby, 1802)
Chelostoma carinocaudatum Wu, 2004
Chelostoma carinoclypeatum Wu, 1992
Chelostoma carinulum Pérez, 1895
Chelostoma cockerelli Michener, 1938
Chelostoma confusum (Benoist, 1934)
Chelostoma diodon Schletterer, 1889
Chelostoma distinctum (Stoeckhert, 1929)
Chelostoma dolosum (Benoist, 1935)
Chelostoma edentulum Pérez, 1895
Chelostoma emarginatum (Nylander, 1856)
Chelostoma florisomne (Linnaeus, 1758)
Chelostoma forcipatum (Benoist, 1928)
Chelostoma foveolatum (Morawitz, 1868)
Chelostoma galeridum (Warncke, 1991)
Chelostoma garrulum (Warncke, 1991)
Chelostoma grande (Nylander, 1852)
Chelostoma handlirschi Schletterer, 1889
Chelostoma hebraeum (Benoist, 1935)
Chelostoma hellenicum (Benoist, 1938)
Chelostoma incertum Pérez, 1890
Chelostoma incisulum Michener, 1938
Chelostoma isabellinum (Warncke, 1991)
Chelostoma josefi Schwarz & Gusenleitner, 2000
Chelostoma lamellum Wu, 1992
Chelostoma laticaudum (Benoist, 1938)
Chelostoma longilabrare Wu, 2004
Chelostoma lucens (Benoist, 1928)
Chelostoma maidli (Benoist, 1935)
Chelostoma marginatum Michener, 1938
Chelostoma minutum Crawford, 1916
Chelostoma mocsaryi Schletterer, 1889
Chelostoma nasutum Pérez, 1895
Chelostoma orientale Schletterer, 1890
Chelostoma palaestinum (Benoist, 1935)
Chelostoma petersi (Tkalcu, 1984)
Chelostoma phaceliae Michener, 1938
Chelostoma philadelphi (Robertson, 1891)
Chelostoma proximum Schletterer, 1889
Chelostoma rapunculi (Lepeletier, 1841)
Chelostoma schlettereri (Friese, 1899)
Chelostoma styriacum Schwarz & Gusenleitner, 1999
Chelostoma sublamellum Wu, 1992
Chelostoma subnitidum (Benoist, 1935)
Chelostoma tetramerum Michener, 1942
Chelostoma torquillum (Warncke, 1991)
Chelostoma transversum (Friese, 1897)
Chelostoma ventrale Schletterer, 1889
Chelostoma xizangense Wu, 1982