DESCRIPTIONS OF NEW AMPHIACUSTAE (ORTHOPTERA, GRYLLOIDEA, PHALANGOPSIDAE) .1. GENERA NEMORICANTOR, ARACHNOPSITA, MAYAGRYLLUS AND PROLONGURIPES

New species of Amphiacustae (Orthoptera, Grylloidea, Phalangopsidae) a re described in the genera Nemoricantor Desutter-Grandcolas & Hubbell, 1993 (N. dirussoi sp. n., N. lanquinensis sp. n.), Arachnopsita Desut ter-Grandcolas & Hubbell, 1993 (A. florensis sp. n., A. uncinata sp. n .), Prolonguripes Desutter-Grandcolas, 1993 (P. giganteus sp. n., P. i zabalae sp. n., P. microxipha sp. n.) and Mayagryllus Desutter-Grandco las & Hubbell, 1993 (M. petenensis sp. n.). The following species are redefined and illustrated: N. maya (Hubbell, 1938) (Amphiacusta), N. s pectrum (Walker, 1869) (Phalangopsis) and P. phalangium (Saussure, 187 4) (Amphiacusta). Additional information is thus provided on the taxa distributions: Nemoricantor is known from Southern Mexico to Costa Ric a, Arachnopsita from Guatemala, Prolonguripes from Guatemala and Hondu ras, and Mayagryllus from Southern Mexico, Guatemala and Belize. For e ach genus a key is proposed for species identification.