The second confirmed record of the scorpion genus Chactas Gervais, 1844 (Scorpiones, Chactidae) from Ecuador with description of a new species from the Amazonian Province of Sucumbíos.
A new species, Chactas moreti sp. n., is described from Ecuadorian Amazonia. It can be distinguished from Chactas mahnerti Lourenço, 1995, the other known species of this genus from Ecuador by its smaller body size, distinct morphometric values, overall darker blackish-brown coloration, totally smooth vesicle, and a concave anterior margin of carapace. This is the second confirmed record of the genus Chactas Gervais from Ecuador. The geographical pattern of distribution of the genus is also discussed.
Muséum national d'Histoire naturelle, Département Systématique et Evolution, UMR7205, CP 053, 57 rue Cuvier, 75005 Paris, France.
Wilson R
WR
Lourenço
Amazon region; Chactas; Ecuador; Province of Sucumbíos; Scorpiones; new species