ANATOMY AND PHYSIOLOGY I4l 
Homologies.—<As in other animals, the reproductive or- 
gans are homologous in the two sexes. Thus: 
Mate. FEMALE. 
Testes = Ovaries 
Seminal ducts = Oviducts 
Ejaculatory duct = Vagina 
Seminal vesicle = Seminal receptacle 
Accessory glands = Accessory glands 
Penis and accessories = Ovipositor 
Male Organs.—Each testis, though sometimes a single 
blind tube, is usually a group of tubes or sacs (Fig. 178), 
testicular follicles, which open into a seminal duct (vas defer- 
Fic. 180. Fic. 181. 
{ Mg) ; if 
MA 
ih 
C 
Reproductive system of queen 
honey bee. a, accessory sac of 
vagina; b, bulb of stinging ap- 
paratus; c, colleterial, or cement, 
Spermatozoa. A, locustid gland; o, ovary; od, oviduct; p, 
grasshopper; B, cockroach, poison glands; pr, poison reser- 
Blatta; C, beetle, Copris. voir; r, receptaculum seminis; 
After BuUrscuii and Bat- re, rectum; v, vagina.—After 
LOWITZ. LEUCKART. 
ens). In most Lepidoptera the testes are secondarily united 
into a single mass (Fig. 179) as also in Acridide. The two 
seminal ducts enter the common ejaculatory duct, which ter- 
