180 J\Iiss G. Ricardo on the Asilida?. 



with black legs and a blackish abdomen, uniformly greyish- 

 yellow poUiuose. 



Promachus .ranthotrichus, Bczzi. 

 Ann. Soc. Ent. Belg. lii. p. 378 (1908). 



This appears to be only a variety of P. fasciatus, Fabr., 

 the only dill'crence being that all the bristles on the sen- 

 tellum are yellow, not black. There are series of specimens 

 with this from Nyasaland in the I. E. E. Coll. and in the 

 Brit. Mus, Coll., one female from Portuguese Congo, two 

 females from Mashonalanil, and one male from E. Ruwenzori, 

 but in some specimens a few black bristles appear, 



Bezzi described one male from the Falls of Semlia lliver, 

 Ngami, Congo. 



Promachus obscuripes, sp. n. 



Type (male). 



Type (female) in coitu, from Mt. Mlanje, Nyasaland, 

 27.xii. 1912 {S. A. Neave), I. E. E. Coll., and a series of 

 males and females from the same locality. 



A species recognized by its wholly black legs, with 

 yellowish short pubescence, by the yellow moustache, and by 

 the yellow hairs and black bristles on the scutellum. 



Length, S 16-19, ? 17-19 mm. 



Male. — Face blackish with yellow-grey tomentnm at sides. 

 Moustache composed of long yellow bristly hairs. Palpi 

 with yellow and black hairs. Beard yellowish. Antenua 

 blackish, the first two joints with yellow hairs. Forehead 

 with black hairs. Hind part of head with yellow hairs and 

 a few strong short l)lack bristles oy each side. Thorax 

 with well-marked blackish stripes and greyish-yellow tomen- 

 tnm, the presutural bristles two in number, as are the supra- 

 alar ones, but the post-alar are three in number, all black ; 

 dorsum with weak black hairs and a few pale yellow ones 

 interspersed. Scutellum with long yellow hairs and black 

 bristles on its posterior border and on dorsum. Abdomen 

 w ith the usual large black spots bordered by greyish totnen- 

 tum ; weak yellow bristles are ])rescnt on the sides of seg- 

 ments and yellow hairs ; on dorsum the pubescence is short 

 and yellow, longer on the first segment. Genitalia very 

 large and stout ; upper forceps swollen, club-shaped, the 

 lower pair large, produced at the l)ase, and ending in an 

 obtuse point ; the lower plates black, shining, all with black 

 })ube8cence. Legs blackish, the tibiftj on their outer sides 



