AbstractThe genusBosminacan be differentiated into four subgenera: 1.Bosminas. str.BAIRD, 1845, 2.EubosminaSELIGO, 1900, 3.NeobosminaLIEDER, 1957, and 4.SinobosminaLIEDER, 1957. Subgeneric discrimination is based upon several features of the females (postabdominal claw, serration of the mucro, patterns of the lateral head pores) and, mainly, upon certain differences in the morphology of the male (postabdomen and, according toLILLJEBORG1900,BURCKHARDT1924 andKOŘINEK1971, the first leg). The distribution of theBosminasubgenera throughout the world varies:Bosminas. str. is distributed worldwide (except for Australia?),Eubosminais holarctic,Neobosminahas been found in Africa, the neotropical zone, Australia and Oceania, andSinobosminaoccurs in East and South‐East As