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

380 MOSQUITOES OF NORTH AMERICA
Larva. Head large, sub-quadrate, sides straight; antenna long,
slender, curved, slightly narrowed beyond tuft, spined all over; tuft
large, multiple, at base of outer fourth; upper dorsal head hairs
multiple, lower pair single. Abdominal lateral hairs of the first and
second segments multiple, double on the third to the fifth, single
on the sixth. Lateral comb of eight segments consists of about 23
scales in a single row. Anal segment longer than wide, ringed by
the plate, a small tuft on the posterior lateral margin of the plate;
dorsal brush a long hair and a multiple tuft on either side; ventral
brush rather short, confined by the plate. Air-tube long, scarcely
tapered, about five times as long as wide. Pecten consists of 12-14
small teeth on the basal third; hair tufts arranged as follows : (1)
a pair of small multiple tufts at base of tube between the two rows of
pecten; (2) a median ventral row of 8 to 14 short multiple tufts
beginning between the rows of pecten and reaching the apex; (3)
a double row of 5 to 6 minute double hairs on the dorsal aspect of
tube.
This species occurs in the eastern United States from the
Gulf of Mexico to Canada. It is rare and local. It over-win-
ters as larvae under the ice. It breeds, in permanent water in
swamps but there is nothing known of its habits.
THEOBALDIA MORSITANS Theobald
C&x morsitans Theobald, Mon. Culic. 2, 8. 1901.
CuCex d’yari Coquillett, Jour. N.Y. Ent. Sot. 10, 192. 1902.
C&x brittoni Felt, Ent. News, 16, 79. 1905.
Female. Length 6 mm.; wing 6 mm. Proboscis long, slender,
black. Occiput dark brown, with narrow yellowish-white curved
scales, cheeks with broad flat scales; numerous, erect, very slender,
forked black scales on vertex and nape. Mesonotum brown, red-
dish-brown in two rather broad submedian bare stripes and two
shorter bare stripes each side of the antescutellar space; vestiture
of narrow, curving, bronzy-brown scales, except along median line,
around the antescutellar space, on sides of disk anteriorly, along
posterior bare stripes and over roots of wings, of coarser yellowish-
white scales. The bronzy-brown scales are frequently intermingled
with the yellowish white. Abdomen blackish brown, segments with
narrow basal bands of white scales; venter with dirty yellow scales
and numerous dark hairs. Wing scales all black. Legs blackish with