The morphology of the reproductive system of Colias fieldii

The male internal genitalia of Colias fieldii Menetries is comprised of testes,a pair of seminal vesicles,a couple of vasa deferentia,two ductus ejaculatorius duplex,a pair of accessory glands and ductus ejaculatorius simplex,in which the two testicular follicles are closely united as one and enclosed in the translucent scrotum. The ductus ejaculatorius simplex is relatively long and can be divided into four different sections. The male genitalia consisted of valvae,aedeagus and other accessory structures. The female internal genitalia is comprised of a pair of ovaries,two lateral oviducts and one common oviduct,kidney-shaped spermatheca,accessory glands,genital chamber and oviporus. The ovaries are symmetrical and consist of four polytrophic ovarioles. The genitalia include ductus seminalis,corpus bursae and associated parts,apophyses posteriores and papillae anales.