1918] Brues—New Species of Evania from Cameroons (Hymenoptera; Evaniide) 93 
0.032 mm.; II, 0.032 mm.; III, 0.128 mm.; IV (0.032 mm.+ 0.176 
mm.). Beak reaching to the hind coxe, cornicles 0.048 mm. 
Second instar. Similar to the last in general color. Antenne of 
five segments with the measurements as follows: Segment I, 0.048 
mm.; II, 0.048 mm.; III, 0.112 mm.; IV, 0.08 mm.; V (0.048 
mm.+0.224 mm.). Cornicles 0.08 mm. Beak reaching beyond 
the second cox. Hind tibia 0.272 mm. 
Third instar. General color similar to that of the previous in- 
star, excepting that it is somewhat darker in color. Antenne of 
five segments, with measurements as follows: Segment I, 0.064 
mm.; II, 0.048 mm.; III, 0.176 mm.; IV, 0.112 mm.; V (0.048 
mm.+0.272 mm.); cornicles 0.112 mm. Hind tibia 0.368 mm. 
Fourth instar. General color similar to that of the last instar. 
Antenne of six segments with measurements as follows: Segment 
III, 0.224 mm.; IV, 0.16 mm.; V, 0.144 mm.; VI(0.08 mm.+ 0.368 
mm.). Segments imbricated but without secondary sensoria. 
Cornicles 0.192 mm. long, tapering, but slightly swollen on the 
distal third and distinctly imbricated and flanged. Hind tibia 0.64 
mm. long; slightly swollen and thickly covered with nearly circular, 
tuberculate sensoria; length from vertex to tip of cauda 1.76 mm. 
Type in U. S. National Museum. 
A NEW SPECIES OF EVANIA FROM THE CAMEROONS 
(HYMENOPTERA; EVANIID£). 
By Cuyarwes T. BrvuEs, 
Bussey Institution, Harvard University. 
In working over a collection of Evaniidz from South Africa, I 
have had occasion to examine a very interesting species from West- 
ern Africa. This was contained in a collection of Parasitic Hymen- 
optera given me by Prof. R. Thaxter, and the type has been de- 
posited in the Museum of Comparative Zodlogy in Cambridge. 
Evania flavocoxalis sp. nov. 
Length 5 mm. Black, the antenne brown at the base; 
palpi, four anterior coxz and trochanters, anterior side of anterior 
tibize and posterior cox below, except at apex, yellow. Wings 
hyaline with a brown tinge. Body very thinly pubescent, almost 
