HYMENOPTEROUS FAMILY STEPHANID^. 



815 



usual impressions or rows of punctures are wanting. Meso- 

 pleurc-e smoother than mesonotum and pubescent ; metapleurse 

 confluent Avith median segment, which is explanate and slightly 

 transcarinate immediately before its apex. Petiole shorter than 

 the remaining segments, second basally constricted, sixth apically 

 discally emarginate. Terebra shorter than body. Hind coxfe as 

 long as femora, which are strongly incrassate, bidentate, and 

 basally angulate below ; tibiee longer than femora, compressed to 

 middle and there excised. 



Text-figure 6. 



DiastepJianus alutaceus. 



Rufo-testaceous ; eyes, ocelli, apex of mandibles, frenum, spot 

 at base of petiole, circular spot on each side of basal third of 

 second segment, and a larger spot on each side of fourth black; 

 femoral teeth white ; terebra riifo-testaceous, apically black. 

 Wings lacteous-hyaline, with a circular pale fuscous spot in the 

 discoidal cell, and another very faint one below the centrally 

 infuscate stigma. 



Length 10 mm. ; abdomen 6 mm. ; petiole 2| mm. ; tere})ra 

 8 mm. 



Habitat: Lonely Mine, Rhodesia. H. Swale, 12. v. 1914. 

 Type in British Museum. 



