LATHYROPHTHALMUS. 83 
black hair; frontal triangle entirely shining black, clothed with long 
blaek hair; frons of female rather narrow, densely covered with 
dark grey pollen, with long dark hairs (which become paler towards 
the antennz) in the middle, shining black around the ocelli and 
above the base of the antenne ; antennal tubercle very prominent ; 
antenne black, the third joint elongate, rectangular, but rounded 
on the upper side, with a yellow border below ; ‘arista longer than 
the antenna, bare, dark red; face shining black, the pollen on 
its sides very ee in the ee denser in the female; facial 
tubercle small, shining, black, prominent and rounded ; face much 
produced below; peristoma narrow and shining black, ‘white pilose 
beneath ; epistoma deeply divided, the opening of the buccal cavity 
long and narrow; proboscis black. Thorax black, dark grey 
pollinose, somewhat shining, especially behind the suture, with 
trace of dark longitudinal stripe s and clothed with long yellowish- 
grey hairs, which are greyer on the pleure. Scutellum rounded, 
yellow with metallic reflexions, blackish towards the base, clothed 
with long hairs like those on thorax, without any black hairs; 
squamuke yellowish white, with whitish fringes; halteres whitish. 
Abdomen of the male with a metallic sheen over the whole si urface; 
first segment black, bordered with grey; second yellow, with a 
black border in front and behind, united together in the middle ; 
thirl black, with a yellow spot on the fore border on each side; 
fourth entirely black; genitalia shining black; hairs long, pale on 
the base and on the yellow portions, black at the end and on the 
dark portions; sides ‘and belly clothed with very long yellowish 
hairs. Abdomen of the female black, with a yellow s spot on each 
side of the second and third segments, those on the second being 
broader ; fourth with a basal whitish tomentose transverse band. 
Legs black, tibiz yellow at the base; hind femora not thickened, 
narrowly yellowish at the base; front tarsi black, the others yellow 
ut the base; hairs black, pale on the yellow portions and on the 
hind femora. Wings hyaline, without pubescence, but with a 
slight yellowish tinge towards the middle ; venation typical, but 
the marginal cell very short-stalked, sometimes almost. sessile ; 
second basal cell rather dilated towards its upper exterior angle ; 
stigma dark yellow, broadly black at the base, and more narrowly at 
the end. 
Type 3. type Q, and three other additional specimens from 
British East Africa, five miles within Kenia Forest, near Luehi 
River, 9. ii. 1911, and E. side of edge of foot of Aberdare Moun- 
tains, 7,800 ft., 24. 11. L911, collected by 7! J. Anderson, in whose 
honour the variety is named. 
80. Lathyrophthalmus melanops, Avwrsch (1SS7). 
Very near the preceding species, and perhaps only a variety of 
it, distinguished by the paler coloration of abdomen and legs, and 
hy being “nown only from the West Coast. 
Deseribed from Pungo-Andongo under the names melanops 
G2 
