author(s)
Raheela Shah and Riffat Sultana

abstract
Mating behavior is a very fascinating aspect in acrididae it is very peculiar in Acrididae which usually not occur in other groups of orthoptera. During this study mating behaviour of 03 species i-e Truxalis fitzgeraldi Dirsh, 1950, T. eximia eximia Eichwald, 1830 and Acrida exaltata (Walker,1859) was investigated under laboratory condition it was noted that non-mated female become active after 12 to 15 days. Maturation period in male was 6.5±0.61 days and 9.8±2.77 days in females. Duration of mating was noted 94 mints in Truxalis fitzgeraldi and 61 mints in Acrida exaltata. Maximum number of mating was observed sixth in these species. Mating not stopped after 1^st mating it continued after oviposition. It was also observed that virgin females live longer than non-virgin. There was significant variation in size and weight of female before and after mating. Length of femur and abdomen of mated female was (4.1±40.11mm) and (3.74±0.19 mm). Non-mated was (3.68±0.14 mm) and (3.34±0.08 mm). Whereas non-mated male and female having the same size. Weight of mated and non-mated female was 1532±166.11 (mg) and 1275±6.09 (mg). Weight of mated and non-mated male was 249.2±22.12 (mg) and 246.4±22.63 (mg). During copulation soliciting behavior, was also noticed.