184 Miss G. Ricaido on the Asilidre. 



In some specimens tliere are vestiges of a black stripe on 

 the femora. 



This species is distinguished from P. ftav'ibarbis, now 

 P. ailamsii^ hy its larger size and entirely black ante/irue, in 

 the latter species the first two joints are reddisli and the 

 ovipositor of the female is longer, composed of the three 

 last segments of abdomen. 



Promachus sohoira, Ricardo, in Forbes, The Nat, Hist, of 

 Sokotra, p. 36:2, pi, xxii. figs, 7, 7a, 9, 9a (1903). 



Tvpes (male and female) and others from Adho, Diemellus, 

 aud'Gochal Valley, Sokotra {If. R. O.-Grant). 



Distinguished from P. neyligens 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. Scuiellina with many 

 stout black bristles. Moustache with black and yellow 

 bristles. Legs blackish, the tibite dull testaceous. 



Length, ^ 28, ? 33 mm. 



Promachus breviventris, sp, n, 



Tyi)e (male) and type (female) from the west slope of 

 Kenya on Meru-Nyeri lload, (JOOO-8500 feet, Brit. E, 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. The 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, S 17-18, ? 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 anteniKt, 

 which have the third jc^int wanting, the first two joints with 

 some white hairs below and black hairs on upper and lower 

 sides, P(ilj)i with white hairs. Forehead with bristly white 

 hairs, fairly numerous. Hind j)art of head with stout white 

 bristles, becoming white hairs round the head. Thorax 



