Neischnocolus iquitos sp. nov. from Loreto region, Peru, is described, diagnosed
and figured. Males of N. iquitos sp. nov. differ from all known congeners in the
presence of two retrolateral processes on palpal tibia, in combination with the
presence of a retrolateral keel on embolus and the absence of granulation or
microspikes on embolus or tegulum. Females of N. iquitos sp. nov. differ from all
known Neischnocolus females in the morphology of the genitalia consisting of a
lower sclerotized part with two short, separate seminal receptacles, and an upper
part, which is transparent and notched.