Taxonomic study on the Occurrence of Trilophidia annulata (Thunberg) (Oedipodinae: Acrididae: Orthoptera) from Pakistan

Abstract

The species of Trilophidia are the severe pest of cereal crops; vegetables, and agricultural field in Pakistan including India. Its external morphology, phallic complex and distributions of Trilophidia annulata was also provided. Its numbers increased at peak level in April to September until December. During the present study characteristics of taxonomic importance, such as the structure of pronotum, number of antennal segments, number of tibial spines and significant features of phallic complex was studied in detail in order to determine the distribution and status of pest in agricultural fields. Beside this, its distribution and occurrence at the district level are also studied.