Comparison of oogenesis of three species of Arcypteridae (Orthoptera: Acridoidea)

By using measure and analysis in biological software, we observe the histological changes in ovarian development of three species of Arcypteridae (Orthoptera: Acridoidea), which are Omocestus viridulus (Linnaeus), Euchorthippus unicolor (Ikonn.) and Euchorthippus vittatus Zheng. The results show that the volume and shape of oocyte of the three species have an acute changes in oogenesis, especially in vitellogenesis, and the increasing of oocyte volume shows a growing model of a power series. The nuclear development of oocyte has great changes at the beginning and without significant changes at the end. Follicles also show acute and periodical changes in the different stages of oogenesis. Furthermore, biological statistics and analysis show significant difference among three species by comparing their changes at every stage in oogenesis.