448 C. GORDON HEWITT. 



PLATE 26. 



Fig. 23. — Female reproductive organs in situ; tlie left ovary and Hie 

 viscera have been removed. Tlie ovipositor (ovp.) is shown retracted, in 

 which state the common oviduct {c.o.d.) is doubled back. 



ac.g. Accessory gland, a.c.v. Accessory copulatory vesicle, ov. Ovary 

 composed of about seventy ovarioles, and containing ova in various stages of 

 development, ov.d. Oviduct, reir.vi. Retractor muscles of the ovipositor. 

 Sp. Spermathecai or vesiculae seminales. 



Fig. 24. — The male reproductive organs. They have been slightly spread 

 out, and tlie rectum {red.) has been turned over to the right side. 



d.e. Ejaculatory duct. e.a. Ejaculatory apodeme. e.s. Ejaculatory sac. 

 te. Testis, v.d. Vas deferens. 



Fig. 25. — Vertical section of one of the rectal glands, to show its struc- 

 ture. X 56. (Camera lucida drawing.) 



sh. Perforate chitinous sheath, r.gl. Gland cell. tr. Trachea. 



Fig. 26. — Terminal region of the female reproductive organs, showing the 

 accessory glands, etc. 



sac. Sacculus. vag. The muscular vagina which evaginates during copula- 

 tion ; a pair of retractor muscles are shown. Other lettering as in Fig. 23. 



