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

CULICINI 187
GENUS PSOROPHORA
Psorophora Robineau-Desvoidy, Mem. Sot. Hist. Nat. Paris,
3, 412. 1827.
Janthinosowza Lynch Arribalzaga, Rev. Mus. de La Plata, 1,
374. 1891.
Conchyktes Howard, Mosquitoes, 155. 1901.
Grabhawzia Theobald, Mon. Culic., 3, 243. 1903.
Feltidia Dyar, Proc. Ent. Sot. Wash., 7, 47. 1905.
Ceratocystia Dyar and Knab, Jour. N.Y. Ent. Sot., 14, 178.
1906.
Lepidosia Coquillett, Science, n.s., 23, 314. 1906.
This genus may be separated from all our other genera by
the following,characters ; ( 1) the absence of setae on the post-
notum; (2) the trilobate condition of the scutellum ; (3) the
second marginal cell more than half as long as its petiole ; (4)
the presence of both spiracular and postspiracular bristles.
The larvae may be easily separated by the characters given in
the key, The species of this genus are found only in the
Americas and adjacent islands. They are found principally
in the tropics but a few species extend well into the temperate
regions. Of the eleven species recorded from North America
not a single one has been found in the Pacific Coast Region.
1.
2.
3.
KEYS TO SPECIES OF PSOROPHORA
Ad& ts
Mesonotum with smooth, nude areas. . . . . . . . . . . . . . 2
Mesonotum uniformly scaled. . . . . . . . . . . . . . . . . . . . . 3
Tarsi with white rings at bases of joints; mesonotum
with a central yellow line. . . . . . . . . . . . . . . . . . . . ciliata
Tarsi without white rings ; central line very narrow, of
dark scales and short setae. . . . . . . . . . . . . . . . . h,owardii ‘!
Claws of the female toothed; wings dark scaled, not
spotted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Claws of the female not toothed; wings often spotted
with black and white scales. . . . . . . . . . . . . . . . . . . . 5