68 
MALARIA 
Outer spines 
' Side piece 
Fig. 2a. Male terminalia of Anopheles punctipennis (after Boot, Amer. Jour. Hyg., 3: 264); b. 
claspette spines of Anopheles crucianus (after King, Amer. Jour. Trop. Med., 19: 461, 1939.) 
and the type form are present in these 
areas. 
Identification 
Brief keys are appended for the identifi¬ 
cation of the nearctic species by adult col¬ 
oration, male terminalia, and larval pi- 
lotaxy. A. albimanus, although occurring 
in extreme southern Texas, has not been 
included, as it is chiefly a tropical species 
and will be treated by other authors in the 
section covering tropical America. Both 
the larvae and adults are easily distin- 
