Members of the tribe Vatellini occurring in the New World and south-east Asia are revised. A cladistic analysis of the tribe is presented including all New World and south-east Asian species and several species of African Derovatellus Sharp. The results indicate that Mesovatellus Trémouilles is nested within Derovatellus , that Vatellus Aubé is nested within Macrovatellus Sharp, and that D . ( Varodetellus ) Biström and Derovatellus are not mutually monophyletic. Therefore, the following genus-group synonymies are formally recognized; Mesovatellus and D . ( Varodetellus ) = Derovatellus ( syn. nov. ) and Macrovatellus = Vatellus ( syn. nov. ). Derovatellus floridanus is elevated from status as a synonym or subspecies of D. lentus (Wehncke) to species status ( stat. nov. ). The following eight new species are described: Derovatellus roosevelti , D. spangleri , Vatellus drymetes , V. amae , V. annae , V. pilacaudus , V. wheeleri and V. maculosus . The following species-group synonymies are formally recognized: Derovatellus ibarrai Spangler 1966 = D. floridanus Fall, 1932 ( syn. nov. ); and Macrovatellus rudis Sharp, 1882 and M. marginalis Sharp, 1882 = Vatellus lateralis (Sharp, 1882) ( syn. nov. ). A detailed revision of the morphology of members of the tribe is presented along with the description of an abdominal gland system (the ' speleum ') that is a synapomorphy for the Vatellini. Keys to species and type information, diagnoses, descriptions, distributions and phylogenetic information are provided for each extant New World and south-east Asian species in the tribe.