Miss G. Ricardo on the Asilidae. 1 71 



The description of tliis species is very meagre^ as follows: — 



Black. Head white. Ahdonioii with the three anterior 

 segments yellow-haired. Tihiae externally chestnut. Wings 

 reddish. 



Length, ? , 16 mm. 



Thorax denudeti, sides witli ashy-grey tomentum. ('ox;e, 

 femora, and tibiae with whitish hairs below. Wings with a 

 grey streak in the first submarginal cell. 



From Senegal, 



Females from Sierra Leone (IF. G. Clements), 93, 20; 

 Freetown, 20. ix. 1899 (E. E. Austen); Kuraasi, Ashanti ; 

 W. Africa, 23. v. 1907 (Dr. W. M. Graham), 19 8, 215 ; 

 Knwe, Lnalaba H., (!ongo Free State {Dr. Yale Mnssci/), 

 190G, 98; Unyoro, 3400 feet ; Uganda, 11-15. xii. 1911 ; 

 W. shores of Victoria Nyanza, Buddn, 3700 feet ; Toro, 

 Daro or Durro Forest, 4000-450;) feet (all S. A. Neave), 1912. 

 12.3 ; and one female from Tero Forest, Uganda, 4. v. 191 1 

 (C C. Gowdey), 1914, 7, answer on the whole to this descrip- 

 tion, though they are larger, and the white hairs on legs 

 are replaced by bright yellow hairs. 



The following description is given for identification : — 



A large robust species with practically black legs and 

 bright yellow pubescence on abdomen and legs, belonging 

 to the P. fasciatus group. 



Length, ?, 22-28 mm. 



Female. — Face blackish covered with yellow tomentum. 

 Moustache of yellow and black hairs. Palpi with yellow 

 and black hairs. Thorax with black pubescence and bristles. 

 Scutellnm with yellow hairs and weak black bristles. Abdo- 

 men black, with bright yellow hairs on the first three seg- 

 ments and on the sides of the others ; ovipositor very short; 

 underside with bright yellow hairs. Leys black, the chest- 

 nut colour of tibite is hardly noticeable ; coxai and femora 

 with long bright yellow hairs ; tibia* with shorter similar 

 ones, and also with black hairs, the hind pairs with black 

 hairs only ; the middle femora are incrassate, armed with a 

 bunch of numerous black bristles, the fore pair with only 

 a few^ black hairs, the hind pair w ith short black bristles. 

 11 iii(/s streaked with brown. 



Promachus fasciatus, Fabr. 



Syst. Ent. p. 793 [Asilua] (1775); see Keitesz, Cat. for furliicr 



references. 

 I'roniachus aqtudis, Loew, Dipt. tSiidafrik. i. p. I'_'7, pi. i. Hj^. itO 



(1860). 



12* 



