TRANSMISSION OF MALARIA BY ANOPHELES IN NORTH AMERICA 
129 
TABLE III 
Anophelines Considered or Suspected as Effective Vectors of Malaria 
Experimental 
infection 
Epidemiological data 
g 
Infec¬ 
i 
Species 
§ 
§ 
tions in 
a 
u 
% s 
S £ 
i CD 
m 0 © 
J 
•f 
i 
nature 
0 
© 
3> 
B-J 
© O O 0 
ie ° 'p 
fl « ® S h 
g 
•3 
■Si 
£}* c3 
■ ' 8 S & Jl pH 
Ah' 
8 
Ph 
H -1 
P to 
m os 
3 Is -a £,.§ 
Nearctie region 
A. quadrimaculatus . 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
Southern and Eastern U. S. 
A. maculipennis (U. S.) ... 
+ 
+ 
+ 
+ 
+ 
+ 
Pacific Coast and South¬ 
west U. S. 
A. punctipennis . 
+ 
+ 
+ 
(1) ? 
+ 
+ - 
+ 
A. crucians . 
+ 
+ 
- 
+ 
+ 
+ - 
+ 
(1) Inland type . 
+ 
+ 
- 
+ 
+ - 
+ 
(2) Coastal type . 
+ 
+ 
+ 
+ - 
+ 
Neotropical region 
A. albimanus . 
+ 
+ 
+ 
+ 
+ 
+ 
Central Am., W. Indies & 
Northern So. Am. 
A. pseudopunctipennis . 
+ 
+ 
+ 
+ 
+ 
+ 
Mexico, Argentina 
A. tarsimaculatus . 
+ 
+ 
+ 
+ 
+ 
+ 
Trinidad, Grenada, St. 
Lucia, French Guiana 
A. argyritarsis . 
f 
+ 
+ 
f 
i 
+ 
Bio de Janeiro, Brazil 
A. darlingi . 
+ 
+ 
+ 
+ 
Brazil, British Guiana, and 
Venezuela 
A. albitarsis (Panama 
type) . 
+ 
T 
? 
- 
(Brazil type) . 
- 
+ 
+ 
+ 
+ 
Brazil and Venezuela 
A. punctimacula . 
+ 
+ 
+ 
• J r 
+ 
+ 
Panama Jungle Areas 
A. hectoris . 
+ 
+ 
+ 
+ 
Guatemala Highlands 
A. bellator . 
+ 
I 
+ 
Trinidad 
Conclusion 
In this chapter data have been presented 
which, though incomplete, serve to indicate 
the scope of our knowledge of the roles 
played by North American anophelines in 
the transmission of malarial fevers. Seven 
nearctie and 23 neotropical species have 
been included, and in each instance con¬ 
sideration has been given to the published 
information concerning the relation of the 
mosquito to malaria as indicated by labora¬ 
tory infections, natural infections, and epi¬ 
demiological data. Tables III and IV pro¬ 
vide an index summarizing certain infor¬ 
mation about the more important species, 
but they do not indicate the adequacy of the 
studies made of these species. 
Considered as a whole, the information 
now at hand fails to indicate the relative 
importance of all the anophelines named. 
Certain species believed to be the most im¬ 
portant vectors, such as A. quadrimaculatus 
in the temperate zone and A. albimanus in 
the tropics, have been studied extensively, 
while others have been neglected on the 
assumption that they are unimportant. 
Even with the former group, the experi¬ 
mental information is somewhat restricted 
to investigations made in a few localities. 
Thus it fails to indicate the relative sus¬ 
ceptibility of the different strains of the 
mosquito species to the different strains of 
malarial plasmodia which may be encoun¬ 
tered in each of the various regions of its 
geographical distribution. Finally, much 
of the data collected is of questionable 
value because of the present confusion as to 
the identity of certain of the North Ameri- 
