SYRITTA. 107 
eated, the hind legs reddish brown, not ciliated below, and smoother 
on the basal portion. 
Two typical females from Durban, Natal, a male and a very 
small female from Howick, Natal (J. P. Cre, goe); a male from 
Basutoland (R. Crawshay). 
It would appear that this species is only a southern form, but I 
have seen specimens from Abyssinia in the collection of the Hun- 
garian Museum; the species which I have assumed to be S. decora, 
Walk., from the Congo, also belongs here. 
116. Syritta austeni, sp. n. 
3 2. Length of the body 7:5 to 8-5 mm. 
A species readily distinguishable, owing to the shape of the hind 
tibixe of the male and the armature of the hind femora in both sexes. 
It is possibly allied to S. nzgrifemorata, Macquart, from Mauritius, 
which shows a similar structure of the hind tibiz, but seems to 
differ in the armature and coloration of the hind femora and in 
the shape of face. 
Face and frons bare, covered with white dust on yellowish 
ground; jowls very small, shining pale yellow; face carinate, 
lightly concave in the middle, with the margin of the buceal cavity 
prominent ; eyes of the male in contact for a moderate space, with 
dilated front facets; vertical triangle very narrow and elongate, 
shining towards the ocelli, with white dust on the anterior half and 
clothed with erect grey hairs; frons of female with short pubes- 
cence above, shining black round the ocelli; and elsewhere covered 
with a white dust, except ona more or less developed black spot 
above the antennz and a broad transverse band across the middle ; 
occiput black, with a white spot above on each side of the vertical 
triangle, and with a white-dusted border below next the eyes ; 
antennze entirely yellow, the third joint rather elongate, aaded 
at the tip; proboscis black. Thorax dullish black, punctate, with 
very short pale pubescence, the humeri, the sides down to the 
suture, and the pleuree with a whitish-grey dust and longer whitish 
pubescence ; in front of the scutellum there is on each side a white 
spot. Scutellum more punctate than the remainder of the thorax, 
but of the same colour, with a few thin short bristles on the 
margin. Squamulze and halteres white, the former with a white 
fringe. Abdomen deep black, shining on the last segment alone, 
almost bare, with the usual tuft of white hairs at the base and 
some hairs on the sides of the last segment. In the male the first 
segment is black, grey on the sides; second and third segments 
yellow, whitish pollinose, with a black median line which is trian- 
gularly dilated behind, forming a broad hind border; fourth seg- 
aoa entirely shining bleia Ww ‘ith a yellow hind border and a basal 
spot of w hite dust on each side; genitalia swollen, black, with pale 
pubescence ; venter whitish, with black hind borders to the segments 
and rather long pubescence at end of the last segment, but without 
a distinct tuft of erect br istles, and only with a few tiny hairs. In 
