390 Miss G. Ricardo on the Asilidee. 
Length, ¢ 12-18, 2? 12 mm. 
Male.—Face yellowish, the moustache reaching the an- 
tennze, black above, yellow or white below. Beard yellowish 
white. Antenne blackish, the first and second joints with 
long black hairs on each side. Forehead with black hairs, 
those on hind part of head long, black, bristly, with yellowish- 
white hairs round head. Thorax bronze, with greyish-brown 
tomentum, the mane thick with outstanding long black 
bristles and the white ones each side ; pubescence on dorsum 
appears to be absent, bristles at sides are all yellow. 
Scutellum with a double row of white bristles and with a 
few white hairs. Abdomen greyish, with a large black spot 
on each segment and short white pubesence, the bristles on 
upper side are not very numerous, yellow in colour, the 
underside appears devoid of any, but has pale weak hairs. 
Genitalia black, shining, with white pubescence, the under- 
plate is black, the forceps short, simple at apex but not 
produced to a point, being club-shaped, broad at the base 
with an obtuse tooth. Legs black with white tomentum, 
and all bristles white, except those on the underside of 
tarsi; the fore femora and tibiz with long white hairs also 
present on the middle ones, but less apparent on the hind 
airs. Wings clear, the small transverse vein about the 
middle of the discal cell. 
Female identical, the ovipositor black, shining, almost as 
long as the two preceding segments. 
Dysmachus rapax, sp. i. 
Type (male) and type (female) and a long series of each 
sex from Nyasaland (S. 4. Neave), in I. KE, E. Coll., evi- 
dently a rapacious species ; all caught with some victim, 
usually of the same family. 
A species dark in colouring, with wholly bronze-coloured 
legs, with a black and yellow moustache, some yellow hairs 
on legs, and scutellum with wholly yellowish hairs and 
bristles. Genitalia short and small. It bears resemblance 
to D. aibopilosus and D. nigripes, sp. n., as regards its 
mane, which is scanty, but distinctly begins from the 
anterior border of thorax, hence its place in the above. 
division. 
Length, ¢ 19-20, ¢ 19-21 mm. 
Male.—Face brownish, with grey tomentum. Moustache 
composed of yellow bristly hairs, bordered by black ones. 
Palpi with numerous strong black bristles. Antenne black- 
ish, the first two joints covered with grey tomentum, and 
