﻿382 F. W. EDWARDS — REVISED KEYS TO THE 



reveal any differences. It is therefore quite possible that the two are really 

 only forms of one species ; they generally occur together, but specimens bred 

 from one batch of larvae exhibit little variation. 



Fig. 7. — Culex annulioris, Theo. 

 Two ventral siphonal hair-tufts have been omitted in the figure : one about in the middle, the 

 other between it and the one shown ; there is also a lateral pair near the apex. Two out of 

 the three specimens had only four comb teeth. 



Fig. 8. — Culex invidiosus, Theo. 



The specimen drawn was abnormal in having the chitinous ring of the anal segment 

 incomplete. The siphon was damaged ; perfect specimens received from Lagos (Dr. A. C. Council) 

 show six pairs of hair -tufts. The hairs on the head and the antennal tuft are plumose. 



