Entomologists have described two new species of the nemesiid spider genus Chaco from Rocha Province, Uruguay. Chaco costai, male. Image credit: Montes de Oca L, Pérez-Miles F. The new species, scientifically named Chaco castanea and Chaco costai, are middle sized spiders that range between 1 and 2 cm in body size. These spiders have elongated body and robust legs with black-brownish coloration. Chaco castanea and Chaco costai are typically found...
