SUBFAMILIES OF CULICID&. jiah 
The following table exhibits the relationships and differences exist- 
ing inthe various subfamilies of the family Culicidee at present known 
to occur in North and Middle America; the latter term, as employed 
by Jordan and Evermann in their admirable work on the fishes of this 
region, is intended to include Mexico, Central America, and the West 
Indies. There are characters in the eggs and larve also which sup- 
port the differentiation of these subfamilies, but these are not given 
here, since the larve will be considered in another publication of this 
Bureau: 
TABLE OF THE SUBFAMILIES. 
A. Scutellum convex behind, never distinctly three-lobed; posterior end of the thorax 
bare; small crossvein usually situated considerably before 
the root of the third vein and connected with it by a stump 
of a vein; claws of the female simple. : 
B. Proboscis straight or almost so; back of the head devoid of broad appressed 
scales, but with many narrow outstanding ones; body never 
with metalescent scales; first submarginal cell longer than 
its petiole; claws simple in both sexes. 
1. ANOPHELIN#E (p. 12) 
BB. Proboscis strongly decurved; back of the head wholly covered with broad 
appressed scales, but devoid of narrow, outstanding ones; 
body covered with broad appressed metalescent scales; 
first submarginal cell less than half as long as its petiole; 
some of the claws of the male toothed. 
2. MEGARHININ® (p. 14) 
AA. Scutellum distinctly three-lobed; small crossvein usually situated beyond the 
root of the third vein. 
C. Posterior end of the thorax bare. 
D. First submarginal cell at least nearly as long as its petiole; some of 
the claws of the male toothed; thorax never with metallic 
bluish scales arranged in lines or spots. 
E. Second joint of the antennze less than eight times as long as 
wide in both sexes, with many long hairs, longer and more 
numerous in the male. 
F. Femora bearing many outstanding scales; wing scales narrow. 
3. PsoROPHORIN ® (p. 14) 
FF, Femora devoid of outstanding scales @. 4. Cutrcrn (p. 15) 
EE. Second joint of the antennze unusually long, in both sexes 
over fourteen times as long as wide; antennze in both sexes 
with a few short hairs only.... 5. DerNocreritin® (p. 26) 
DD. First submarginal cell less than half as long as its petiole; claws 
simple in both sexes; thorax with metallic bluish scales 
which form lines or spots... --- 6. URANOTNIIN®E (p. 26) 
CC. Posterior end of the thorax behind the scutellum bearing several bristles 
and sometimes with a few scales; claws simple in both 
sexes; antenne similar in the two sexes, bearing many long 
[NT tose eccebe nod sea ee 7. TRICHOPROSOPONIN® (p. 26) 
«Except in the genus Aédeomyia, which has broad wing scales. 
