Abstract
Three new species of Katydids from Mexico are described in Insara Walker, 1869:1, 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.The Mexican Orthoptera fauna numbers approximately one thousand species. This figure is continuously increasing, of course, due to the description of new taxa. During our field trips in Mexico, we had the chance to collect three new species of Ensifera,all belonging to the subfamily Phaneropterinae of the Tettigoniidae: two belong to the Insarini Rehn & Hebard, 1914 and one to the Odonturini Brunner von Wattenwyl, 1878. The two new species of Insarini are represented by very few specimens (although wecollected in their localities several times).
NSTL