upper /lead haic..^ 

 /ou/er Aead naic^ j 



anrennai 



Uf,. - _ £2nTe nncL 



.preanrennal 



-~^4/errfral Tuffs 

 ecren 



ijf'' 



Fig. 125 — Larval diagram. Culicinae. (After King, Bradley, 

 & McNeel 1939.) 



132). Found attached by its air tube to roots of 

 succulent vegetation in marshes with soft bottom; 

 seldom seen at surface Mansonia perturbans 



Air tube without apical stout spurlike processes, its 

 apical sclerites fiat or conical (Fig. 127/4, \19A) 



3 



3. Ventral brush of anal segment represented by only 

 a single pair of double ( Fig. 1 30/4 ) or triple hairs. 

 Found only in the liquid inside the bladder-like 

 leaves of pitcher plants Wyeomyia smithi 



Ventral brush of anal segment consisting of several 

 tufts of hairs (Fig. 127/4, 129/4) 4 



1 Anal segment with sclerotized plate not meeting on 



ventral surface (Fig. 140/4, 141/4) Aedes 



Anal segment completely ringed by sclerotized plate 

 (Fig, 127/4) 5 



5. Air tube cylindrical and without a pecten (Fig. 127/4, 



129/4) 6 



Air tube either greatly swollen (Fig. 176) or with a 

 pecten ( Fig. 145/4, 165/4 ) 7 



6. Abdominal segments 3-7 each with 3 spine-bearing 



sclerous plates on each side (as on segment 7, Fig. 

 129/4); head quadrate, with most of dorsal hairs 

 single, and with hairs of mouth brushes coarse ( Fig. 

 129B' Occurring in tree holes; predacious on 



Fig. 126. — Anopheles larva. Left figure, dorsal 

 view of entire larva; upper right ligure, details of 

 thorax; lower right figure, apex of abdomen, lateral 

 aspect. (After Ross & Roberts 1943.) 



27 



