High-level systematics and phylogeny of the extant scorpions (Scorpiones: Orthosterni) Author Soleglad, Michael E. Author Fet, Victor text Euscorpius 2003 2003-12-26 2003 11 1 175 http://dx.doi.org/10.18590/euscorpius.2003.vol2003.iss11.1 journal article 10.18590/euscorpius.2003.vol2003.iss11.1 1536-9307 13237351 86191695-B841-4C9D-BFF2-CBC76D1861BA Subfamily Scorpiopinae Kraepelin, 1905 Type Genus. Scorpiops Peters, 1861 . Composition. The subfamily includes two tribes, Scorpiopini and Troglocormini , and seven genera (Soleglad & Sissom, 2001). Distribution. North America ( Mexico ), Asia (south and southeast). Taxonomic history . This taxon was originally introduced as a subfamily of Vaejovidae (under Scorpiopsinae , incorrect original spelling) where it persisted for a long time ( Stahnke, 1974 ), although this placement was considered not satisfactory ( Sissom, 1990 ). The subfamily Scorpiopsinae was formally elevated to the family level by Stockwell (1992) , confirmed by Lourenço (1998c), and listed as a family in Fet (2000h) who corrected the name spelling to Scorpiopidae . A revision of this family was published by Kovařík (2000a). Most recently, Scorpiopidae was downgraded to a subfamily of Euscorpiidae by Soleglad & Sissom (2001), who also introduced two tribes, so that the content of family Scorpiopidae as given in Fet (2000h) and Kovařík (2000a) now corresponds to the tribe Scorpiopini . Biogeographic history . The scorpiopines exhibit a spectacular disjunction between their main range in tropical Asia (a diverse tribe Scorpiopini ), and the New World ( Mexico ) range of the tribe Troglocormini (which survives only as a cave genus Troglocormus ). Such a disjunction could indicate an ancient age of Scorpiopinae , and could be explained by the Laurasian origin of both groups and subsequent differential extinction. Diagnosis . See Soleglad & Sissom (2001) for details.