418 NEW YORK STATE MUSEUM 
abdominal segment with 30 to 52 teeth arranged in about three 
irregular rows. Caudad of this comb is a tuft of nine feathered 
hairs, and dorsad and ventrad of it are several small bristles. 
‘On the dorsal margin of the ninth segment are three or four 
long bristles, and on the apical third of the ventral surface is a 
brush of long hairs consisting of from nine to 12 tufts. In most 
specimens the blood or tracheal gills are long, extending beyond 
the tip of the breathing tube. 
Pupa. The breathing trumpet [fig.11] is somewhat widened 
-at the top, about five times as long as wide, its apical margin 
oblique. On the most posterior of the thoracic sclerites are 
three pairs of short, stout, branched hairs; on the dorsal surface 
of the first abdominal segment, are the usual pair of stellate 
hairs; the remaining segments each have about three pairs of 
lateral discal hairs and two pairs of small branched marginal 
ones, one of the marginal pairs on the eighth segment being 
many branched. - 
Culex pipiens Linnaeus 
Plate 43 
Male. Length 4mm. Antennal joints grayish white, the tips 
black, the long hairs brown; proboscis and palpi pale fuscous, 
the latter darker at the tip with long, dark brown hairs; occiput 
‘with yellowish hairs; dorsum of thorax yellowish brown, with 
five indistinct, darker brown stripes, on each of which is a row 
of a few black or brown bristles, elsewhere covered with yellow 
scales; pleura metanotum and scutellum yellowish brown, the 
last slightly darker, with a few long brownish hairs; abdomen 
long haired, segments fuscous, at the base rather widely fas- 
ciated with yellow scales; ventral surface paler fuscous; 
genitalia vellowish, not very prominent [fig.11]; legs fuscous, 
quite pale on the coxae and base of femora, gradually becoming 
darker distally, the tarsi being quite dark; the knees and ex- 
treme tip of tibiae, yellowish. The fore and middle pairs of 
claws unequal, the longer one inside, each claw with a distinct 
tooth [fig.8]. The hind claws simple. Wings hyaline, scales 
fuscous [fig.10]. Halteres pale. 
Female. Length 4mm. Antennae, proboscis and palpi uni- 
formly fuscous; abdomen fuscous, with a very narrow basal 
fascia of yellow scales on each segment; ventral surface paler; 
femora with basal half and flexor surface yellow, gradually 
becoming darker distally, tibiae and tarsi as with the male. All 
tarsal claws simple [fig.9]. Wings with fuscous scales. Vena- 
tion as in figure 12. Allelse as with the male. Bred specimens. 
July 18, Aug. 31, and Sep. 7, 1901. . Ithaca N. Y. 
Larva. Length 7to8mm. The head is nearly circular in out- 
line, color pale fuscous, with six moderately long tufts of hair on 
