DISTRIBUTION OF THE NEARCTIC SPECIES 
OF ANOPHELES 
By W. V. KING and G. H. BRADLEY 
BUBMU OF ENTOMOLOGY AND PLANT QUARANTINE, UNITED STATES DEPARTMENT OF AGRICULTURE, 
WASHINGTON, D. C. 
A considerable list of locality records of 
North American Anopheles was published 
by Howard, Dyar, and Knab (1917a) and 
Dyar (1922), to which many others have 
been added. Kumm (1929b), in recording 
the distribution of malaria-carrying mos¬ 
quitoes of the world, assembled most of the 
available records for six of the species of 
Anopheles covered in the present article, 
quadrimaculatus, maculipennis, punctipen- 
nis, crucians, pseudopunctipennis, and al- 
bimanus. Small-scale maps showing their 
distribution were included. Since Kumm’s 
publication, additional records have become 
available, and maps showing State-wide 
distributions of anophelines have been pub¬ 
lished for Mississippi by Perez (1930), for 
California by Herms (1929), for New 
Mexico by Barber and Forbrich (1933), 
and for Minnesota by Owen (1937). 
The recognition and classification of mos¬ 
quitoes have had a gradual development 
since about 1900, but some of the earlier 
identifications are questionable. During 
recent years there has been some activity in 
the separation of closely related species or 
subspecies, which also complicates the mat¬ 
ter of previous records. 
For the present article small-scale maps 
(Figs. 1 to 4) have been prepared to show 
the distribution of the species in the United 
States and southern Canada. For the com¬ 
moner species the areas in which they are 
known to have a more or less general dis- 
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