AQUATIC INSECTS IN NEW YORK ‘STATE 423 
two or three short teeth near the base, the two or three elongate 
distal spines being separate from the others and from each 
other. Breathing tube about two and one half times longer than 
wide. The setae of the ninth segment extend forward from the 
barred area. | 
Pupa. The plane of the margin of the breathing trumpet 
makes about a 30° angle with its long axis. Specimens taken 
duly 10, 1902, Ithaca N. Y. 
Culex triseriatus Say 
Plate 46 
Acad. Sci. Phila. Jour. 3:12. 4 Compl. Wr. 2:40; Wiedemann, 1:11, 12 
Female. Length 44mm. Antennae uniformly grayish, the 
large basal joint yellowish, the joints of the flagellum ver- 
ticillate, with a few long, black hairs, besides which the 
shaft is covered with sparse grayish white, downy hair; pro- 
boscis fuscous, including its base and the epistome. Palpi 
one fourth as long as proboscis, cylindric. Occiput covered 
with silvery white scales; dorsum of thorax with a very 
broad black stripe, widened posteriorly, where it covers the 
Space to the base of the wing excepting a spot of white 
scales in the middle line on a line with the bases of the 
wing; scutellum and metanotum black; the sides of the an- 
terior part of the dorsum, and the pleura, covered with white 
scales; abdomen covered with deep black scales. The anterior 
margin of the dorsal surface of the segments are fasciate with 
dark brown scales, and the anterior margin of all segments on 
the ventral surface fasciate with white scales. These latter 
fasciae extend to the sides and their extremities are just visible 
on the dorsal aspect. The last segment is yellow, genitalia 
black; the legs black, the coxae, the flexor surface of all the fem- 
ora, the bases of the first and second pairs, the basal two thirds 
of the hind pair, and all the knees, white; tarsi sometimes dark 
brown. The fore and middle pair of tarsal claws each with a 
tooth, those of the hind pair simple. Wings smoky, the scales 
black, those on the posterior margin brown. Venation as in 
figure 7. Halteres white. 
Male. Antennae wanting. Like the female in all respects 
excepting as follows. The black dorsal stripe slightly narrower; 
the long palpi are black, hypopygium prominent, the front tar- 
sal claws of unequal size, one long and curved, the other shorter 
and nearly straight; both with a single tooth on the underside, 
the middle claws each with a tooth, hind ones simple. Described 
from specimens bred July 1901. Ithaca N. Y. 
Larva. Length 7 to 8 mm. Head [fig.3] is round, in color 
brown; in the transverse row between the bases of the anten- 
