262 HYMENOPTERA. 



21. CCELIOXYS ARGENTEA. 



Coelioxys argentea, St. Farg. Hym. ii. 523. 5. 

 Lucas, Explo. Sc. Alger. iii. pi. 9. f. 9. 



Hab. Algeria (Oran). 



22. CCELIOXYS SUBDENTATA. 



Male. Length 5 lines. Black, head and thorax coarsely 

 punctured, the punctures more or less confluent ; the face and 

 cheeks densely clothed with white pubescence. Thorax, beneath, 

 the sides and the metathorax clothed with white pubescence ; the 

 femora beneath, and the tibiae and tarsi above, have a clothing of 

 very short white pubescence ; the extreme apex of the tibiae and 

 the tarsi ferruginous; the wings fusco-hyaline, palest towards 

 their base, darkest at their apical margins ; the tegulee and ner- 

 vures black ; the posterior margin of the scutellum subangular, 

 having a short tooth in the middle and another short obtuse one 

 on each side. Abdomen shining, the punctures scattered; the 

 apical margins of the segments have bands of white pubescence, 

 much attenuated in the middle, and broad on each side ; beneath, 

 the segments have a broad band of white pubescence ; the apical 

 segment has a short tooth on each side at the base, and is deeply 

 concave in the middle, and produced on each side, each produc- 

 tion armed above with three short teeth, beneath which is a longer 

 and more acute tooth. 



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



23. CCELIOXYS FOVEOLATA. 



Male. Length 6 lines. Black, head and thorax shining, 

 covered with large distinct punctures, the face and cheeks densely 

 clothed with very pale ochraceous pubescence. Thorax, the 

 sides, beneath, and the collar covered with pale ochraceous pu- 

 bescence ; two tufts of the same at the base of the scutellum, its 

 posterior margin rounded, and armed on each side with a stout 

 angular tooth ; the wings fuscous, palest at their base, the tegulae 

 and nervures black ; the femora beneath, the tibiae and tarsi above 

 densely covered with short snow-white pubescence. Abdomen 

 shining, strongly punctured, the apical margins of the segments 

 having a narrow white fascia which at the sides expands into a 

 broad angular patch, the second, third and fourth segments be- 

 neath have a broad band of the same colour ; above, the second 

 and third segments have on each side a transverse oblong pear- 

 shaped foveola enclosed by a smooth shining ridge ; the two fol- 

 lowing segments have on each side a somewhat similar shaped 

 depression not enclosed ; the apical segment has on each side at 



