arr. 1. MOSQUITOES OF THE UNITED STATES—DYAR, 103 
8. Palpi of female with whitish rings at bases of joints______ walkeri Theobald, 
Without distinct white rings on palpi; body blackish; hairs of mesonotum 
CLEVIG KO ys ea a a atropos Dyar and Knab. 
Subgenus NySsORHYNCHUS Blanchard. 
ANOPHELES (NYSSORHYNCHUS) ALBIMANUS Wiedemann. 
Anopheles albimanus WIEDEMANN, Dipt. Exot., p. 10, 1821. 
Anopheles cubensis AGRAMONTE, El Prog. Med., T'rop., vol. 1, p. 17, 1900. 
Anopheles argyrotarsis albipes THEOBALD, Mon. Culic., vol. 1, p. 125, 1901. 
Anopheles dubius BLANCHARD, Les Moust., p. 205, 1905. 
Anopheles tarsimaculata Gortp1, Os Mosq. no Para, p. 133, 1905. 
Anopheles gorgasi Dyar and Knap, Journ. N. Y. Ent. Soc., vol. 15, p. 198, 
1907. 
A medium-sized black Anopheles, the tip of hind tarsi white 
with a black spot on last joint. Mesonotum shining gray, a small 
black spot on each side and a larger one at posterior end. Abdomen 
dark gray, the segments with lateral projecting tufts of scales. 
Legs blackish, the fore tarsi with white rings at apices of the first 
three joints; hind legs with apex of second, third to fifth joints 
white, a black mark on the fifth joint. Wings with black and yel- 
lowish scales, two large yellowish spots outwardly on costa; other 
veins with small dark spots alternating with pale scales. Palpi 
long, dark, last joint and base of penultimate one white. Sometimes 
the last two joints of palpi wholly white or nearly so (tarsimaculata). 
The larvae prefer stagnant water, exposed to the sun, with growth 
of algae. They occur readily in water of artificial production and 
readily associate with habitations. This is the principal vector of 
malaria in tropical America. 
Distribution—Tropical America, the Antilles, southern Florida. 
The forms albimanus and tarsimaculata have not the same distribu- 
tion; but they intermix in Panama and elsewhere, and probably 
represent races of one species. 
United States Records. 
FLormpA: Key West (C. H. Gardner). 
Subgenus ANOPHELES Meigen. 
ANOPHELES (ANOPHELES) PUNCTIPENNIS Say. 
Culex punctipennis Say, Journ. Acad. Nat. Sci. Phila., vol. 3, p. 9, 1823. 
Culex hyemalis Fircu, Amer. Journ. Agr. Sci., vol. 5, p. 281, 1847. 
Anopheles perplexens LupLow, Can. Ent., vol. 39, p. 267, 1907. 
Mesonotum elongate, hairy, broadly whitish in the integument 
in the middle, dark brown on the sides. Abdomen hairy, brown, the 
apices of the segments darker, in the integument. Legs long and 
slender, blackish; tips of femora and tibiae with small white spots. 
