Morphology and histology of the female reprodutive system of Abedus ovatus Stal (Belostomatidae: Hemiptera: Insecta)

ABSTRACT

In Abedus ovatus Stal, the female reprodutive system consists of a pair of ovaries leading to oviduct and opens out by genital aperture. Each ovary is composed of five telotrophic ovarioles, with four different regions, terminal filament, germarium, vitellarium and pedicel. Germarium and vitellarium are the germ tubes in which the development of oocyte occurs. In the germarium, the differentiation of trophocytes into young oocytes was observed in three zones, Z I, Z II and Z III. Further development of oocytes in the vitellarium could be divided into seven stages, ST I-ST VII. The development eggs are lodged in the pedicel.