STUDIES ON THE SYSTEMATICS AND DISTRIBUTION OF THE SCORPION VAEJOVIS-BILINEATUS POCOCK (VAEJOVIDAE)

A revised diagnosis is given for the scorpion Vaejovis bilineatus Poco ck, a member of the eusthenura group, based on newer characters of tax onomic importance. New distributional records presented herein expand the known range of the species to cover much of northeastern Mexico, s pecifically the states of Coahuila, Nuevo Leon, Tamaulipas, Aguascalie ntes, Guanajuato, and San Luis Potosi. The results of an analysis of c haracter variation involving coloration, pectinal tooth counts, pedipa lp chela finger dentition, trichobothrial patterns, morphometrics, and setal counts of the pedipalps and metasoma are also provided.