176 Miss O. Ricardo on 



pubescence white, becoming fulvous on the. basal inner edge 

 of fore tibia} and of the first joint of fore tarsi and on the 

 inner and under side of the posterior tibiae and of the first 

 joint of tarsi. 



Wings with grey shading at the apex, extending to the 

 first posterior cell, and continuing in a narrow line to the b\se 

 of the first submarginal cell. 



Alcimus cinerascens, £ & ? , sp. n. 



Three males and four females from Fort Johnston, Nyasa- 

 land (P. Randall). 



g . — Grey. Face brown, with whitish tomentum; palpi black, 

 with white hairs; the moustache consists of a row of black 

 bristles above the mouth, then of long white hairs, which from 

 halfway up the face dwindle into a few short ones reaching 

 to the antenna?. Forehead with a few black hairs at the sides. 

 Antennae red; the third joint black, with grey tomentum, the 

 bristle black ; the first two joints with black hairs. The hinder 

 part of head bordered with black bristles intermixed with 

 white ones, the hairs on sides of head and the beard white. 

 Thorax and scutellum brown, with grey tomentum ; the median 

 stripe of the former blackish brown, divided on its whole 

 length by a narrow brown stripe ; the side-stripes brown, with 

 an ill-defined black oblong spot on the last three divisions ; 

 the shoulders reddish ; the bristles on the posterior part of 

 thorax are black, the pubescence on the scutellum white; the 

 breast-sides are brown, with grey tomentum and scanty white 

 pubescence ; the bristles near the halteres white. 



Abdomen reddish brown, with darker bands on the seg- 

 ments, bordered posteriorly by narrow bands of white tomen- 

 tum, and a stripe of white tomentum on each side; the 

 pubescence on the dark bands is black, elsewhere white; the 

 bristles on the sides of the first four segments are white, on 

 the remaining ones black; the underside cinereous, with grey 

 tomentum. 



Legs red, the fore coxae with grey tomentum and long 

 white hairs; the posterior coxae partly black, with black 

 bristles on the outer edges ; the inner side of the femora and 

 of the anterior and middle tibiae, the posterior tibiae except 

 at the extreme base, and all the tarsi black ; the pubescence 

 on the legs white ; the fore femora on the basal half and the 

 fore tibiae with long white hairs on the underside; the poste- 

 rior tibiae and the first joint of the posterior tarsi clothed with 

 dense fulvous pubescence on the underside ; bristles on the 

 legs black, with some white ones intermixed. 



