356 Mr. R. E. Turner on Fossurial Hymenoptera. 



cell except the extreme apex, the second and third cubital 

 cells, and the apical third of the second discoidal cell. 



Hab. S.W. of Lake Chihva, Nyasaland (S. A. Neave), 

 Januarj li'14. 



Cryjjtosalius elyonensis, sp. n. 



$ . Fusco-ferruginea ; inesonoto, abdomine flagelloque nigris ; alis 



subhyalinis, anticis fusco bifasciatis. 

 Var. Mcsonoto fusco-ferrugineo. 

 Long. 10-11 mm. 



? . Posterior ocelli a little nearer to the eyes than to each 

 other. Head and thorax closely microscopically punctured, 

 the mesonotum nearly twice as long as the pronotum in the 

 middle ; propleurse with microscopic oblique striae, meso- 

 pleurse with large sparse punctures interspersed with the 

 minute puncturation. Carina of the scutellum almost obso- 

 lete. Median segment, legs, and neuration as in perluctuosus ; 

 fascia? of the fore wing as in that species, the second tascia 

 a little broader in the discoidal cells. 



Hab. Southern slopes of Mt. Elgon, 5100-5800 ft. {S. A. 

 Neave), June 1911 ; Daro Forest, Toro, Uganda Protectorate, 

 4000-4500 ft. {8. A. Neave), October 1911. 



The pronotum is much shorter than in the allied species. 



XLII. — Notes on Fossorial Hymenoptera. — XXXV. On 

 new Sphecoidea in the British Museum. By ROWLAND E. 

 Turner, F.Z.S., F.E.S. 



Protostigmus, gen. nov. 



Head large, much broader than the thorax. Eyes reaching 

 the base of the mandibles, their inner margins almost 

 parallel. Mandibles bidentate at the apex. Antennas in- 

 serted very low down near the apical angles of the clypeus ; 

 scape long, rather less than half as long as the flagellum. 

 Pronotum short, narrower than the mesonotum, rounded at 

 the angles, the calli reaching back to the tegulse; median 

 segment short and small, opaque and without coarse sculp- 

 ture. Abdomen not petiolate. Fore tarsi unarmed ; hind 

 tibia? almost smooth, very feebly serrate towards the apex. 

 Stigma large, more than twice as long as the greatest 

 breadth, much smaller than in Ammoplanus. Radius 



