REVISION OF THE SOUTH AMERICAN GENERA ALLOTRUXALIS REHN AND EUTRYXALIS BRUNER (ORTHOPTERA: ACRIDIDAE: HYALOPTERYGINI)

DONATO, MARIANO

CALDASIA

Año: 2003 vol. 25 p. 381 - 402

0366-5232

In this study Allotruxalis and Eutryxalis are re-described based on characters from the external morphology and genitalia. The genus Allotruxalis comprised two species: A. gracilis and A. strigata, that were described based mostly on characters from external morphology. The morphological analysis conducted in this study showed that external morphological characters do not permit separation of these two species. Characters from internal genitalia are decisive to postulate A. strigataAllotruxalis and Eutryxalis are re-described based on characters from the external morphology and genitalia. The genus Allotruxalis comprised two species: A. gracilis and A. strigata, that were described based mostly on characters from external morphology. The morphological analysis conducted in this study showed that external morphological characters do not permit separation of these two species. Characters from internal genitalia are decisive to postulate A. strigataAllotruxalis comprised two species: A. gracilis and A. strigata, that were described based mostly on characters from external morphology. The morphological analysis conducted in this study showed that external morphological characters do not permit separation of these two species. Characters from internal genitalia are decisive to postulate A. strigataA. gracilis and A. strigata, that were described based mostly on characters from external morphology. The morphological analysis conducted in this study showed that external morphological characters do not permit separation of these two species. Characters from internal genitalia are decisive to postulate A. strigataA. strigata as a junior synonym of A. gracilis. The genus Eutryxalis comprised one species: E. filata, and three subspecies: E. f. filata, E. f. minor, and E. f. bellula, that also were described based mostly on characters from external morphology. A multivariate analysis was carried out and showed that these characters do not allow one to distinguish the three entities. Therefore, I postulate these subespecies as junior synonyms of E. filata.A. gracilis. The genus Eutryxalis comprised one species: E. filata, and three subspecies: E. f. filata, E. f. minor, and E. f. bellula, that also were described based mostly on characters from external morphology. A multivariate analysis was carried out and showed that these characters do not allow one to distinguish the three entities. Therefore, I postulate these subespecies as junior synonyms of E. filata., and three subspecies: E. f. filata, E. f. minor, and E. f. bellula, that also were described based mostly on characters from external morphology. A multivariate analysis was carried out and showed that these characters do not allow one to distinguish the three entities. Therefore, I postulate these subespecies as junior synonyms of E. filata.E. filata.