lyo 



The Wing 



The wings shew : — 



1. An anterior straight, thick, and strong 

 border or costa. . 



2. A posterior curved and tliin border, 

 carrying a fringe. 



3. Two small folds at the base of the wing 

 (squama and alula). 



4. Nervures, or veins. 



The costa in Anophelines is generally covered in 

 part with white, and in part with black, scales 

 (spotted). 



Cat/li 





/V„.,,/j^,„.^ 



3 ■ (i\oilodii,ui 



i^j>ocir^^ 



'i f.Uiry^r 



jiyk»-it cclL 



Fig. 44. Wing of Anophelinae : — 



Upper = Supevnumary cross-vein 



Lower = Posterior cross-vein 



Anterior forked cell = First forked cell 



First posterior forked cell = Second posterior cell 



Second posterior forked cell ^= Anal cell 



The fringe in Anophelines has most frequently 

 light and darker portions, the number and position 

 of which are of specific importance (Fig. 51). 



