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

194 MOSQUITOES OF NORTH AMERICA
PSOROPHORX CYMXUCENS Coquillett
Czllex cyamscem Coquillett, Jour. N.Y. Ent. Sot., 10, 137.
1902.
Female. Length 5.5 mm.; wing 4.5 mm. Proboscis slender, black
with bluish reflections. Occiput black, with yellowish-brown scales.
Mesonotum black rather evenly clothed with yellowish-brown scales,
those at the sides paler, almost gray. Abdomen purplish dorsally, with
apical segmental bands of golden yellow scales; venter yellowish
scaled. Legs black with violet reflections, the femora yellowish.
Wing scales brownish black.
Male lzypopygiunt. “Side-piece cylindrical, roundedly truncate at
tip, hairy. Cl aspette slender, cemented to the side-piece except at
base and tip ; tip triangularly expanded and with an inner arm; six
or seven flattened narrow filaments along the margin arising from
conical tubercles. Tenth sternites rather large, inner margin thick-
ened, tip with laterally projecting point. Clasper swollen mesially,
base and tip narrow, a terminal retrorse spine. Ninth tergites un-
developed. Mesosome a small basal cylinder.” (Dyar, 1928.)
Larva. “Head rounded, wider than long; antennae stout, long,
but not longer than the head, sinuate, a two-haired tuft near middle.
Head-hairs single ; anteantennal tuft in three. Lateral comb of the
eighth segment, of five scales on a weakly chitinized area, each scale
trifid, with long central tooth. Air-tube strongly inflated, three times
as long as basal width; a small pecten of four teeth at base of tube.
Two long terminal reflexed hairs. Anal segment longer than wide,
ringed by the plate; dorsal tuft a long hair and tuft on each side.
Ventral brush running the length of the segment. Anal gills slender,
longer than the segment, tapered.
This species is distributed iron1 the Gulf States south to
Argentina. It breeds in telnporary rain-pools.
PSOROPIIORA HOWARDII Coquillett
Psor.oplzora lzowardii Coquillett, Can. Ent. 33, 258. 1901.
Psoroplzora G4esccm Dyar and Knab, Proc. Biol. Sot.
Wash., 19, 133. 1906.
Female. Length 8 mm.; wing 5.5 mm. Proboscis slender, bluish
black. Occiput black with broad, flat white scales and setae. Meso-
notum brown and black, shining; a narrow median line of small