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

CULICINI 201
Fellzale. Length 3 mm.; wing 2.5 mm. Proboscis very long, some-
what enlarged at the apex, dark scaled. Occiput clothed with broad,
flat scales, bright metallic violet blue in front and at the side, dark
brown and black on the rest. Mesonotum yellowish-brown clothed
with fine bronzy-brown scales ; a narrow median line of broad flat,
brilliant metallic blue scales extending from near the anterior margin
to the scutellum where it broadens into a small patch; on each side in
front of the roots of the wings there is a narrow line of metallic
blue scales extending forward to about the middle of the mesonotum.
Scutellum trilobate, the median lobe very large and clothed with
brilliant blue scales, lateral lobes small with brownish scales; each
lobe with a tuft of long black bristles. Abdomen short, truncate,
with broad, flat, brownish scales which have a bluish iridescence;
apices of third, fifth and sixth segments with a median patch of dirty
white scales; venter clothed with dirty whitish scales. Wing-scales
brown; basal half of fifth vein with pale blue scales and a similar
short patch at the root of first. Legs slender, dark brown; apices
of femora and tibiae white scaled.
Male lzypopygizinz. Side-piece short, a little longer than wide;
apical lobes absent; basal lobe short, conical, crowned with two strong
spines and several smaller ones. Clasper short, expanded at the
middle, constricted before the apex. Tenth sternite apparently ab-
sent unless represented by a very thin membrane; the tergite is
represented by two stout projections extending forward from beneath
the large lobe of the ninth segment. Mesosome stout, heavily chitin-
ized, of two lateral plates, each plate with three ventral hooks; the
plates are united at their basal ends by a broad band of chitin;
apex ends in two stout hooks and several small denticles. The ninth
segment is well developed with a pair of large median rectangular
lobes extending to near the apex of the mesosome.
Larva. Head elongate, longer than wide. Antenna small, spined
on one side, a single small hair on basal third; upper and lower head
hairs single, stout and thick like heavy spines; anteantennal tuft of
four hairs. Abdomen rather small; lateral tufts of the first and
second segment long, in threes, nearly obsolete on the other segments;
numerous small hairs and tufts scattered over the abdominal seg-
ments. Lateral comb of the eighth segment of a row seven to ten
teeth on the distal edge of a large, transverse, chitinous plate, single
tooth spine-like. Anal segment about as long as wide, completely
ringed by the dorsal plate; posterior margin of dorsal plate with a
row of very fine spines; dorsal brush a tuft of three hairs on each
side; ventral brush well developed, confined behind the dorsal plate,