Three new species and one subspecies of Mouriri are described, with one new species of Votomita. Mouriri peruviana sp. nov. and Votomita pubescens sp. nov. occur in northeast Peru, Mouriri praceana sp. nov. is from the elevated regions of southeast Para and north Mato Grosso, Brazil, and M. viridicosta sp. nov. is from French Guiana. Relations of the first three are clear but M. viridicosta has no close relatives and does not fit well in any of the existing sections of the genus. Mouriri cearensis subsp. carajasica ssp. nov. is a distinct inland form of the species.