184 Miss G. Ricardo on the Asilide. 
In some specimens there are vestiges of a black stripe on 
the femora. 
This species is distinguished from P. flavibarbis, now 
P. adamsii, by its larger size and entirely black antenne, in 
the latter species the first two joints are reddish and the 
ovipositor of the female is longer, composed of the three 
last segments of abdomen. 
Promachus sokotre, Ricardo, in Forbes, The Nat. Hist. of 
Sokotra, p. 362, pl. xxi. figs. 7, 7a, 9, 9a (1903). 
Types (male and female) and others from Adho, Diemellus, 
and Gochal Valley, Sokotra (W. R. O.-Grant). 
Distinguished from P. negligens at once by the long 
genitalia in the males, the upper forceps long, cylindrical, 
bordered with black short hairs and at apex with long 
fringe-like black hairs, the white tuft above is very apparent. 
Ovipositor of female not very long, composed of the seventh 
and eighth segments of abdomen, which has the usual black 
spots and grey tomentose bands. Scutellum with many 
stout black bristles. Moustache with black and yellow 
bristles. Legs blackish, the tibiz dull testaceous. 
Length, ¢ 28, 2? 33 mm. 
Promachus breviventris, sp. n. 
Type (male) and type (female) from the west slope of 
Kenya on Meru—Nyeri Road, 6000-8500 feet, Brit. EH. Africa 
(S. A. Neave), 1911, 177; and other males and females from 
same locality. 
A species allied to Promachus binucleatus, Bezzi, in the 
genitalia of male which have a very thick compact tuft of 
black hairs below; the genitalia are very short, with white 
hairs above. ‘lhe ovipositor in female includes the seventh 
and eighth segments and is fairly long. Legs reddish with 
white pubescence and black stripes on the femora. Mous- 
tache white. 
Length, ¢ 17-18, 2? 20-22 mm. 
Male.—Face chamois-colour with yellowish tomentum. 
Moustache composed of silky yellowish-white hairs, rather 
thick, and white shorter hairs are continued to the antenna, 
which have the third joint wanting, the first two joints with 
some white hairs below and black hairs on upper and lower 
sides. Palpi with white hairs. Forehead with bristly white 
hairs, fairly numerous. Hind part of head with stout white 
bristles, becoming white hairs round the head. Thorax 
