harpasus mulsant, 1850 was studied based on the morphology of the exoskeleton and genitalia. the type material of harpasus aureus almeida & carvalho, 2006, h. quadrifolium gonzález, corrêa & almeida, 2008 and a homotype of h. zonatus (mulsant, 1850) were examined. the lectotype of h. eversmanni (mulsant, 1850) was designated and two new species were described, harpasus unifasciatus sp. nov. (teresópolis, rj, brazil) and harpasus ferrugineus sp. nov. (puerto carre？o, vichada, colombia). herein a diagnosis for the genus and its seven species, identification key and information about biological aspects are presented.