FOUR NEW AFRICAN GALL MIDGES. 495 



the latter nearly as long as the entire segment. Palpi, 

 1st segment with a length 3 times its diameter, the 2nd 

 as long as the 1st, the 3rd a little longer than the 2nd, and 

 the 4th one-fourth longer than the 3rd, and somewhat 

 dilated near the distal foiirth. Mesonotum reddish-brown. 

 Wings hyaline, subcosta joining the anterior mai'gin near 

 the basal half, the area between it and costa more or less 

 distinctly chitinised, the 3rd vein uniting with the margin 

 at the apex of the wing and the 5th at the distal fourth, its 

 branch at the distal third. Halteres pale yellowish, legs 

 mostly dark brown. Claws strongly curved, unindentate, 

 the pulvilli rudimentary. Genitalia, basal clasp segment 

 moderately long, stout, and with a well-developed triangular 

 setose lobe at the basal third, terminal clasp segment 

 moderately long, stout, swollen basally, dorsal plate relatively 

 short, broad, deeply and triangularly emarginate, the lobes 

 tapering to a narrowly rounded apex. Ventral plate mode- 

 rately long, the basal portion broad, truncate mesially and 

 with long, rather slender, somewhat irregular processes 

 extending posteriorly from the lateral angles as far as the tip 

 of the style, the latter moderately long, stout. Type Cecid. 

 1806 B. 



Fbm ALE provisionally associated with Homobremia agilis, 

 described below, may be the opposite sex of this species, since 

 all were associated. 



Homobremia agilis, n. s-p. 



This specimen was labelled " Lonji, Cameroon, West Africa, 

 near the Ulou River, altitude about 1000 feet." This is a 

 locality about fifty miles north of Kribi. The insects, several 

 species, were recorded as resting in great numbers on spider- 

 webs in the trunk of a hollow tree. The type is deposited in 

 the New York State Museum, Albany, N.Y., U.S.A. 



Male. — Length 1*5 mm. Antennae ^ longer than the body, 

 thickly haired, dark brown, 14 segments, the 5th with stems 

 1;^ and 2^ times their diameters respectively. The basal 

 enlargement subglose, the distal enlargement with a length 



VOL. 4, PAKT 2. 34 



