HYMENOPTERA. 263 



the base a sharp spine ; the apex above has four spines or teeth, 

 the outer ones acute and divergent, the lower pair are about the 

 same length, but less acute. 



Hab. Cape of Good Hope. (Coll. F. Smith.) 



24. CcELioxYs Capensis. 



Female. Length 5 lines. — Black, head and thorax closely 

 and coarsely punctured, the face and cheeks densely clothed with 

 short silverV-white pubescence, the mandibles ferruginous, their 

 tips black. Thorax, beneath, the sides and metathorax clothed 

 with silvery-white pubescence, also a tuft over the tegulae ; the 

 tegulse and nervures of the wings black, the apex of the wings 

 fuscous ; the scutellura rounded behind, and armed on each side 

 with a short stout tooth, curved inwards ; the legs red, the apical 

 joints of the tarsi black, the claws red ; the femora beneath, and 

 the tibige and tarsi above clothed with a short snow-white pubes- 

 cence. Abdomen shining, covered with large scattered punc- 

 tures, beneath, the margins of the segments and the apical seg- 

 ment ferruginous ; all the segments have an uninterrupted white 

 band of pubescence on their apical margins attenuated in the 

 middle, the basal one sometimes interrupted ; the apical segment 

 acute, the upper plate having a sharp carina, not quite extending 

 to its base, the sides of the plate fringed with white pubescence ; 

 the ventral plate longer than the superior, terminating in a short 

 spine, subacute at its apex. 



jyiale. — This sex closely resembles the female, but is more 

 pubescent, particularly on the disk of the thorax, that on the 

 face has a golden tinge ; the apex of the abdomen armed with 

 eight spines ; the first pair are placed at the lateral angles of the 

 fifth segment ; the second pair at the basal lateral angles of the 

 sixth segment, the apex of which is furnished with two on each 

 side, the upper pair short and acute, the lower pair twice their 

 lensrth and more slender and acute. 



Hab. Cape of Good Hope. (Coll. F. Smith.) 



25. CCELIOXYS VERTICALIS. B.M. 



Female. Length 5^ lines. — Head and thorax strongly punc- 

 tured, the vertex rugose; the face covered with silvery-white 

 pubescence. Thorax, the sides and beneath have short white 

 pubescence ; the legs dark rufo-piceous, covered above with a 

 short white pile, the tarsi ferruginous ; the wings fuscous, palest 

 towards their base ; the scutellum rounded behind and having a 

 short obtuse tooth on each side. Abdomen moderately punc- 

 tured, most strongly towards the base ; all the segments have a 



