International Journal of Entomology Research

Authors
Heba A S Elelimy, Afaf A Meguid, Nirvina A Ghazawy, Aziza H Omar

Abstract
The growth zone, maturation zone and differentiation zone were the three developmental zones observed in the male testis of Spilostethus pandurus. In the growth zone, spermatogonia increase by cell mitosis to differentiate into spermatocytes. Two meiotic divisions take place in the maturation zone, and the spermatid differentiation takes place within the cysts. Spermatids grow and alter shape in the differentiation zone, resulting in the formation of spermatozoa. The greater part of the head region of the mature sperm is occupied by the nucleus. The axonemal complex, two mitochondrial derivatives, the reticular appendage, and a centriolar adjunct near to the axoneme constitute the tail region. The present study's objective is to use transmission electron microscopy to examine the reproductive morphology of male S. pandurus.