New species of Amphiacustae (Orthoptera, Grylloidea, Phalangopsidae) are described in the genera Nemoricantor Desutter-Grandcolas & Hubbell, 1993 (N. dirussoi sp. n., N. lanquinensis sp. n. ), Arachnopsita Desutter-Grandcolas & Hubbell, 1993 (A. florensis sp. n., A. uncinata sp. n.), Prolonguripes Desutter-Grandcolas, 1993 (P. giganteus sp. n., P. izabalae sp. n., P. microxipha sp. n.) and Mayagryllus Desutter-Grandcolas & Hubbell, 1993 (M. petenensis sp. n.). The following species are redefined and illustrated: N. maya (Hubbell, 1938) (Amphiacusta), N. spectrum (Walker, 1869) (Phalangopsis) and P. phalangium (Saussure, 1874) (Amphiacusta). Additional information is thus provided on the taxa distributions: Nemoricantor is known from Southern Mexico to Costa Rica, Arachnopsita from Guatemala, Prolonguripes from Guatemala and Honduras, and Mayagryllus from Southern Mexico, Guatemala and Belize. For each genus a key is proposed for species identification.