160 



HYMENOPTERA. 



punctured, the face thinly clothed with a scattered black pubes- 

 cence ; the thorax, legs and basal segment of the abdomen densely 

 clothed with intensely black pubescence ; wings black, palest to- 

 wards their apical margins and having a violet iridescence ; the 

 five apical segments of the abdomen clothed above with bright 

 fulvous-red pubescence, beneath the pubescence is of the same 

 colour but longer. 

 Hab. Port Natal. 



50. MEGACHILE MACULATA, n. s. 



Female. Length 4 lines. Black, the pubescence on the 

 head, thorax and legs black, the flagellum fulvous beneath. 

 Thorax, the wings fulvo-hyaline, their apical margins pale, te- 

 gulae and nervures ferruginous ; tarsi ferruginous and clothed with 

 fulvous pubescence beneath ; the abdomen shining, the second 

 segment has a transverse arched depression, the second, third, 

 fourth and fifth segments have on each side a transverse qua- 

 drate patch of yellow pubescence ; the pollen-brush has the 

 pubescence black at its base and pale towards the tips of the 

 hairs. 

 Hab. Port Natal ; Fernando Po. (Coll. F. Smith and W. W. 



Saunders, Esq.) 



51. MEGACHILE SENEX, n. s. 



Male. Length 5 lines. Black, the face densely covered with 

 long cinereous pubescence, very bright towards the apex of the 

 clypeus ; the cheeks have a thick fringe of the same colour, and 

 a similar clothing is thinly scattered over the entire insect ; the 

 mandibles are longitudinally sculptured and have a long acute 

 tooth at their apex. Thorax, the pubescence on the disk slightly 

 ochraceous ; wings subhyaline, faintly clouded at their apex, 

 nervures testaceous ; the apical joints of the tarsi rufo-testaceous, 

 clothed beneath with bright fulvous pubescence ; the anterior 

 tarsi simple, fringed behind with long white hairs; the coxae 

 armed with an obtuse spine ; the sixth segment of the abdomen 

 rounded, recurved and notched in the middle, each angle of the 

 notch having a short acute spine, beyond which the margin is 

 crenulated ; the seventh segment has a stout spine in the centre 

 of its margin. 

 Hab. Port Natal. (Coll. W. W. Saunders, Esq.) 



52. MEGACHILE MANDIBULATA, n. s. B.M. 



Male. Length 5 lines. Black, the face covered with long 

 ochraceous pubescence, on the cheeks, thorax and abdomen be- 



