a handbook of the mosquitoes of north america - Systematic Catalog ...

CULICINI 111
usually occurs in late August and September and frequently
makes life in our recreation parks, playgrounds, gardens, etc.,
almost unendurable. It not infrequently invades houses even
though screened, and is extremely annoying on unscreened
porches biting during the early morning, late afternoon and
well into the night. Its migratory habit renders this species a
difficult one to deal with in areas where the breeding grounds
are not known or when they are at some distance from the cen-
ters of population.
AEDES STIMULANS Walker
Culex stimulaalzs Walker, List. Dipt. Brit. Mus. 1, 4. 1848.
Culicada sztbcantam Felt, Bull. 97, N.Y. State Mus., 448. 1905.
Aedcs classiczts Dyar, Proc. U.S. Nat. Mus. 62, 77. 1922.
Aedes wzercurator Dyar, Ins. Ins. Mens. 8, 13. 1920.
Acdes nzi.s.si.ssippii Dyar, Proc. U.S. Nat. Mus. 62, 77. 1922.
Aedes albertce Dyar, Proc. U.S. Nat. Mus. 62, 76. 1922.
Female. Length 5 mm.; wing 5 mm. Proboscis black. Palpi
short, brownish-black. Occiput black, with numerous yellowish-white
appressed scales and many slender, erect, blunt, scales intermixed;
cheeks with broad whitish scales. Mesonotum dark brown, densely
clothed with narrow curved scales, bronzy-brown on the disk, the
scales of the antescutelar space, lateral margins and a sub-dorsal
line each side of disk whitish. Abdomen black; each segment with
broad basal bands of white scales; venter densely clothed with white
scales. Wing scales black to brown intermixed with dull white ones,
the black scales predominating. Legs black, femora and tibiae with
white and black scales intermixed; tarsi black, each hind tarsal seg-
ment broadly ringed with white scales; rings of white scales on
middle and front tarsi narrow, the last two segments of front tarsi
and the last one of middle usually wholly back.
IVale hypopygiuvz. (Fig. 6.) Side-pieces nearly three times as
long as wide, slender; apical lobe large, rounded with rather long
setae directed outwardly ; basal lobe quadrately expanded bearing
numerous short setae and a stout curved marginal spine. Claspers
lorig, medianly expanded. Claspette with slender, hirsute cylindrical
stem ; filament sickle-shaped, slightly expanded at middle. Mesosome
stout, cylindrical, widely open along the ventral surface, closed on