72 
MALARIA 
Fig. 2. Anopheles crucians, A. bradleyi, A. georgi- 
anus, and A. atropos. 
tribution are indicated by shading with 
solid lines, while broken lines are used to 
indicate areas of probable or scattered oc¬ 
currence. Individual locality records are 
shown approximately by spot-marking 
around the periphery of the shaded areas 
to indicate the present available informa¬ 
tion as to the limits of range. For the less 
common species all the locality records have 
been spotted in, except that in the case of 
closely grouped localities, a single spot may 
represent several records. The specific 
localities represented by the spotting and 
the sources of the records (many unpub¬ 
lished) are given in the locality records, 
but for lack of space the complete litera¬ 
ture citations have had to be limited to the 
general mention of the works in other parts 
of the text. For the same reason locality 
records for most of the shaded areas have 
been omitted. In citing the authorities for 
the records given, the names of Howard, 
Dyar and Knab (1917a) have been abbre¬ 
viated to H. D. and K. 
An unexpectedly small number of rec¬ 
ords is to be found in these lists for such 
states as Pennsylvania, Ohio, Indiana, Mis¬ 
souri, Iowa, Kansas, and Oklahoma. Since 
endemic malaria is known to occur in por¬ 
tions of these states, the paucity of records 
may be attributed in part to lack of collec¬ 
tions or publication. There are almost no 
published records for some of the region 
east of the Rocky Mountains. 
While it is possible that a part of this 
region is free of anophelines, recent corre¬ 
spondence with workers in these states has 
brought out new records, included here, 
for certain parts of Nebraska, the Dakotas 
and Iowa. Of special interest is the discov¬ 
Fig. 4. Anopheles pseudopunctipennis, A. barberi, 
and A. wallceri. 
ery of Anopheles occidentalis in Iowa and 
northwestern Nebraska. 
Anopheles alhimanus Wied. 
Anopheles albimanus Wied. is princi¬ 
pally of tropical distribution and is known 
to occur at present in the United States 
only in the lower Rio Grande Valley of 
Texas. It was discovered in Key West, 
Fla., in 1904, but apparently was elimi¬ 
nated from that locality. Locality records 
are available as follows: 
Texas: Brownsville (Dyar 1928). Limited to 
Cameron and Hidalgo Counties (Kumm 1929). 
Cameron County and Brownsville (King 1937). 
Donna (P. T. Riherd coll. 12/24/39). Cameron, 
Hidalgo, Willacy, and Jim Wells Counties (notes 
from T. E. McGregor to F. C. Bishopp 1940). 
Florida: Key West (Gardner 1904; G. N. Mac- 
Donell; H. D. and K. 1918). Not found on the 
Florida Keys since 1904 (King 1937). 
