HYMENOPTERA. 349 



I 



24. Xylocopa olivacea. B.M. 



Apis olivacea, Fabr. Ent. Syst. ii. 319. 21 cJ . 

 Bombus olivaceus, Fabr. Syst. Piez. j3. 347- 20. 

 Xylocopa luteola, St. Farg. Hym. ii. 198. 42 <? . 



Female. Length 7-8 lines. — Black, the face having- a little 

 short black pubescence, the thorax and basal segment of the 

 abdomen densely clothed with short bright yellow pubescence ; 

 the wings subhyaline towards their base, then' apical margins 

 broadly dark fuscous ; the legs entirely black. 



Hab. SieiTa Leone. 



25. Xylocopa apica^lis. B.M. 



Xylocopa apicalis. White, MSS. 



Female. Length 10 lines. — Black, the face densely clothed 

 wdth black pubescence; the thorax above and also the basal 

 segment of the abdomen clothed with bright yellow pubescence ; 

 the wings dark fuscous, and having a violet tinge towards the 

 base, the margins faintly brassy ; the legs and abdomen have a 

 black pubescence, the latter shining and thickly fringed at the 

 sides, sparingly pubescent above, the margins of the segments 

 narrowly rufo-testaceous. 



Hab. Sierra Leone ; the Gambia. 



26. Xylocopa Hottentotta. • *" B.M. 



Female. Length 8 lines. — Black, the face very closely and 

 strongly punctured ; an elevated sharp carina runs from the base 

 of the clypeus up to the anterior stemma ; the flagellum, except 

 the two basal segments, fulvous beneath ; the disk of the thorax 

 shining, the punctm-es scattered, the metathorax rounded be- 

 hind ; wings dark fuscous, having a purple iridescence. 



Hab. Sierra Leone ; Port Natal. 



27. Xylocopa albiceps. B.M. 



Xylocopa albiceps, Fabr. Syst. Piez. p. 341. 13. 



St. Farg. Hym. ii. 189. 27- 



Hab. Africa ; Sierra Leone ; Guinea. 



28. Xylocopa torrida. B.M. 

 Mesotrichia torrida, Westw. Trans. Ent. Soc. Lond. ii. 113. 1 c? $ . 

 Hab. Tropical ^^frica ; Fernando Po. 



