WINGLESS REPRODUCTIVE TYPE OF TERMITES 611 
Fig. 11 Reticulitermes virginicus. Third-form adult, female, optical sec- 
tion of head. 
Fig. 12 Reticulitermes virginicus. Third-form nymph, female, immature. 
ov, ovary; s.r, seminal receptacle; c.g, colleterial gland. The three parts of the 
reproductive system, though fused, are still embryonic in character. Spencer 
oc. 6, obj. 16 mm., stage level. 
