160 



HYMEXOPTERA. 



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

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

 clothed wilh intensely black pubescence ; wings black, ])alest to- 

 wards their apical margins and having a violet iridescence ; the 

 five ajiical segments of the abdomen clothed above witli bright 

 fulvous-red pul)escence, beneath the pubescence is of the same 

 colour but longer. 



Hab. Port Natal. 



50. Megachile maculata, n. s. 



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

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

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

 suhc and nervures ferruginous ; tarsi ferruginous and clothed with 

 fulvous pubescence beneath ; the abdomen shining, tlie second 

 segment has a transverse arclied 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. \A\ 



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 

 clvpeus ; 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 aiul have a long acute 

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

 ochraceous ; wings subhyaline, faintly clouded at their apex, 

 ner\aires 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 coxic 

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

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

 notch ha^^ng a short acute sj)ine, beyond which tlie margin is 

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

 of its margin. 

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



52. Megachile maxdibulata, n. s. B.M. 



Male. Length 5 hnes. — Black, the face covered with long 

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



