58 



Male Organs of Insects. 



If we except bees and wasps, there are no true insects that 

 need be feared ; nor need we except them, for with fair usage 

 even they are seldom provoked to use their cruel weapon. 



SEX OEGANS OF INSECTS. 



The male organs consist of the testes (Fig. 12, a), which 

 are double. There may be from one, as in the drone bee, to 



Fig. 12. 



Male Organs of Drone, much magnified. 



a— Testes. 



&, 6 — Vasa deferentia. 

 c, c— Seminal sacks, 

 d— Glandular sacks. 



e— Common duct. 



/, !7— EJaculatory sack. 



n — Penis. 



i — Yellow saccules. 



several, as in some beetles, on each side the abdominal cavity. 

 In these vesicles grow the sperm cells or spermatozoa, which, 

 when llber-it^rl, pass through a long convoluted tube, the vas- 

 defereus (Fig. 12, b, h), into the seminal sack (Fig. 12, c, c) 



