OF WASHINGTON. 183 
black and yellow, those on the apex white. Scales of proboscis mixed 
black and yellow and with several white ones beyond its middle, almost 
forming a band. Scales of occiput light yellow, those along the sides 
white, the upright ones chiefly brown. Thorax brown, its scales golden 
yellow. Abdomen purple-scaled, a patch of pale yellow ones near middle 
of sides of each segment; venter black-scaled, front angles of the seg- 
ments whitish-scaled. Femora and tibiae black-scaled and with many 
patches of light yellow ones, the under side of the hind femora and inner 
side of their tibiae chiefly yellow-scaled; front and middle tarsi black- 
scaled, the first joint with many small patches of yellow ones, both ends 
of the first three joints and the whole of the last two, yellow-scaled; 
hind tarsi the same except that the third joint is wholly yellowish-scaled I 
tarsal claws simple. Wings hyaline, the scales black, yellow, and white, 
the latter collected into about seven spots, several narrow lateral scales 
on most of the veins. Length 5 mm. 
Puntarenas, Costa Rica. Four females collected by Mr. 
F. Knab. 
Type. No. 8296, U. S. National Museum. 
Gymnometopa, new genus. 
Near Stegomyia, but the clypeus is wholly bare and the scutellum bears 
many narrow scales in addition to the broad ones. Scales of occiput broad, 
appressed and with several narrow, forked, nearly erect ones. Scales 
of legs appressed. Venation normal, the lateral scales of the veins rather 
narrow. Palpi of the male about as long as the proboscis, those of the 
female less than one-third as long. 
Type: Stegomyia mediomttata Coq., from the West Indies. 
The larva differs widely from that of Stegomyia fasciata 
in having many spreading tufts of rather long hairs scattered 
over the body, nearly as in the genus Uranotcenia. Stegomyia 
busckii Coq. and S. sexlineata Theob. also belong to this new 
genus. 
Gymnometopa albonotata, new species. 
Like busckii, the only apparent differences being the presence of a silvery 
dot in middle of front margin of the mesonotum, and a distinct white 
band at base of first two joints of the front and middle tarsi and of each 
joint in the palpi of the male; the broad apices of the palpi of the female 
are white-scaled. 
San Francisco Mts., Santo Domingo, West Indies. Five 
males and three females collected by Mr. A. Busck. 
Type. No. 8297, U. S- National Museum. 
Dr. Dyar informs me that the larva is readily separable 
from that of busckii. 
Culex knabi, new species. 
Proboscis and palpi black-scaled; head, thorax and scutellum yellow, 
