80 MISC. PUBLICATION 336, U. S. DEPT. OF AGRICULTURE 
a 
/ === Latera/ comb 
Co ? ~~ FB" segment 
I 
Dorsa/ | 
VCQOICA -—— ef 
ye SCGIICNT” 
\ 
Dorsal plate —— 1] WS 
Ded Aare -— ~ x WS. - Leptraf 
Dorsal hair tut? -- ai X\ | 
Ventral tuff E 
Fieure 24.—A, Posterior portion of abdomen of larva of Aedes verans; B, anal 
segment of larva of Aedes mitchellae; C, same of Wyeomyia mitchellit. 
