Three new species of Tettigoniidae from Mexico (Orthoptera: Tettigoniidae; Phaneropterinae; Insarini and Odonturini)

Three new species of Katydids from Mexico are described in Insara Walker, 1869: I. oaxacae and I. acutitegmina, respectively, collected in Oaxaca and Chiapas states and Arachnitus apterus n. sp. of Arachnitus Hebard, 1932 from Puebla and Oaxaca states.