174 Miss G. Ricardo on the Asilide. 
the tibize, under side of femora, and on tarsi. Genitalia 
black, testaceous below ; pubescence white, the last segment 
below produced to a large triangular piece wholly reddish 
with black hairs; the upper lamelle long, club-shaped. 
Wings clear, with yellowish veins. 
Female identical. Ovipositor long, composed of the last 
three segments, black. 
Promachus poetinus, W\k. 
List Dipt. ii. p. 8390 [-Astlus] (1849); et vii., Suppl. 3, p. 597 [ Trupanea | 
(1855); Loew, Dipt. Siidafrik. i. p. 127 (1860). 
Type (male) from Sierra Leone. 
A female from Sierra Leone, presented by Rey. D. E. 
Morgan. A series of males and females from Bokani and 
from Boto, N. Nigeria (J. J. Simpson), 1912, 460, in Brit. 
Mus. Coll. 
A series of males and females from Yapi, Gold Coast 
Territories, Nov. 1916 (J. J. Simpson). One female from 
Cotonon in Dahomey, 70 miles west of Lagos (W. A. Lam- 
borne), 31. v. 1914. 
A species very similar to P. flavopilosus, sp. n., from 
Uganda, but the pubescence on legs and abdomen is not so 
thick or so bright-coloured. Scutel/um has sometimes black 
bristles besides the yellow hairs. Moustache whitish and 
black. 
Length, g 19-25, ? 23-25 mm. 
Male.—Face with yellowish tomentum, the moustache 
composed of black bristles intermixed with fine white hairs, 
which are also present between the moustache and the base 
of the antenne. Palpi with whitish-yellow hairs. Antenne 
deep black, the first two joints with black hairs ; the arista 
one and a half times as long as the third joint. Forehead 
with black bristly hairs. Hind part of head with white 
hairs, and four more short black bristles on each side. 
Thorax with white hairs anteriorly and on the breast-sides, 
elsewhere with black pubescence ; presutural bristles three, 
supra-alar three, one being a weak bristle, post-alar two, 
some of these bristles are often yellow. Scutellum with 
many yellow hairs, those on the outer border more bristly, 
in the type no black ones are present. Abdomen with short 
yellowish pubescence and rather longer hairs at sides ; 
underside with soft yellowish hairs. Genitalia black, shining, 
long, and club-shaped; the under lamelle also long, more 
than half as long as the upper ones, all with scanty yellow 
pubescence. Legs xanthine-orange, the fore and middle 
