Rare or poorly known scorpions from Colombia. I. Redescription of \u3cem\u3eTityus macrochirus\u3c/em\u3e Pocock, 1897 (Scorpiones: Buthidae)

A fully illustrated redescription is herein presented of Tityus macrochirus Pocock, 1897, based upon a series of specimens of both sexes recently collected in a new location near the type locality. We include an update of its geographical distribution and detailed information about age-related individual variation