HYMENOPTERA, 351 



femora compressed beneath, and expanded, forming a flattened 

 angular shape, the tarsi a httle dilated, densely ciliated on both 

 sides with long fulvous pubescence ; the posterior tibiae bent 

 inwards, the tarsi covered exteriorly with long black pubescence : 

 otherwise as in the other sex. 

 Hub. Congo. 



33. Xylocopa ustulata. 



Female. Length 7i lines. — Black, the face densely covered 

 with griseous pubescence, the mandibles and antennte ferruginous, 

 the flagellum obscure above ; the disk of the thorax very glossj'^ 

 and sparingly punctured ; in front, clothed with griseous pubes- 

 cence ; the wings dark fuscous, having a violet iridescence, sub- 

 hyaline at their extreme base ; the anterior legs ferruginous 

 beneath, the intermediate and posterior pairs obscurely ferrugi- 

 nous, and clothed above with black pubescence. Abdomen 

 shining, very closely punctured at the sides, sparingly so in the 

 middle, naked ; the apex fringed with black pubescence. 



Male. — Exactly corresjjonds with the other sex, but has a 

 little white pubescence on the sides of the thorax beneath the 

 wings, and also a little at the base of the abdomen. 



Hab. The Gambia. (Coll. F. Smith.) 



34. Xylocopa varipes. B.M. 



Female. Length 9 lines. — Black, the pubescence on the head, 

 thorax, basal segment of the abdomen above, ochraceous ; that 

 on the thorax inclining to fulvous; the lateral margins of the 

 clypeus slightly raised, and having also a central raised carina ; 

 the wings dark fuscous, and having a purple iridescence; the 

 anterior tibia; and tarsi, the intermediate tibife above, as well as 

 the posterior pair, clothed with fulvo-ochraceous pubescence ; the 

 intermediate tarsi have a bright ferruginous pubescence with a 

 tuft of ochraceous at their base above, the posterior tarsi have a 

 dark fuscous pubescence with a little briglrt ferruginous at the 

 apex, the tibia; have also a little bright ferruginous at their apex 

 above. Abdomen, the second, third and fourth segments fringed 

 at the sides with black pubescence, the fifth and sixth are fringed 

 with fulvo-ochraceous pubescence, the apex with bright ferru- 

 ginous. 



Hab. South Africa (Fernando Po) ; Sierra Leone. 



35. Xylocopa imitator. B.M. 



Female. Length i) lines. — Black, the face has a griseous pu- 

 bescence, that on the cheeks snow-white ; the flagellum except 

 the three basal joints testaceous beneath. Thorax, smooth and 



r5 



