1896.] NATURAL SCIENCES OF PHILADELPHIA. 551 



lum) ; middle segment subtruncate posteriorly, entire, above with a 



central longitudinal impressed line, posteriorly with rather coarse 



transverse strise, which extend partly on 



the sides; legs tolerably stout, scarcely 



spinose ; fore tarsi without comb ; claws 



with a large, sharp tooth within, almost 



cleft ; longer spur of hind tarsi less than 



one-third as long as the first hind tarsal 



joint ; marginal cell pointed at tip; second 



and third submarginals about equal in 



size, both receiving their recurrent nerv- 



TT J r n 1-7 ' 1- ure slightly before the middle; basal vein 



Head oi Fompilus somalicus, . . 



joining the sub median cell before its 

 ai)ex ; submedian cell of hind wings terminating before the origin 

 of the cubital vein ; abdomen not compressed, obscurely testaceous 

 beneath ; dorsals 1, 3 and 4 with a large lateral spot of pale pubes- 

 cence, which is also indicated laterally on the ventral segments. 

 Length, 17 mm. 



One specimen. Near Finik, December 6, 1894. Is apparently 

 distinct from all the African species of Pompilus in the bifasciate 

 fore-wings. I refer it to Kohl's subgenus Pedinaspis with some 

 doubt, inasmuch as the abdomen is not compressed, and the claws 

 rather more cleft than dentate. 



Salius (Cyphonyx) fiavicornis Fabr. 



One specimen. Sheikh Husein, October 5, 1894. In this speci- 

 men, a 9 , only the tibiae are reddish. 



Salius (Hemipepsis) atropos ? Sm. 



I refer, with some doubt, two $ specimens taken at Sheikh Hu- 

 sein, October 10, 1894. Smith only describes the female, his speci- 

 mens having come from Sierra Leone. 



SPHECID^. 



Sphex (Chlorion) xanthocerus var. maxillaris Pal. 



One 9 specimen. The Hand, July 21, 1894. 

 Sphex (Chlorion) regalis Sm. var. 



Two females. Ardeh, July 14 ; Hargesa, July 18, J 894. In this 

 form the thorax is entirely black ; the wings black with violaceous 

 reflections, the apex of the hind pair not pale ; head, anteunse, fore- 

 legs entirely, and the femora and tibite of the medial pair, reddish ; 

 abdomen metallic and purplish-blue.* 



