70 AriR.E. 



friiitrcd Willi fulvous jmlicsconcc ; lioncatli, llic pubcRoonct' is white, 

 t'xcopt that on the two apioal segments, and also that on the sides 

 of the fourth, which is bhxck. 



Hah. Santarom. 



43. Megachile urbana. 



Female. Length 5 lines. — lUack : tlie head and thorax opaque, the 

 abdomen slightly shining. The face with a little pale fulvous pu- 

 bescence on each side of the clypeus, and a little black above it ; 

 the anterior margin of the clypeus cmarginate ; the cheeks with 

 cinerooiis pubescence. Thorax, and also the head, very closely 

 punctured ; the margin of the prothorax and the basal margin of 

 the metathorax mth a short thick fringe of white pubescence ; the 

 legs obscurely rufo-piceous ; wings subhyaliuc, with a fuscous 

 cloud on the anterior margin of the fore wings ; the nervures 

 black. The apical margins of the segments of the abdomen ob- 

 scurely rufo-piceous, clothed beneath with white pubescence. 



Male. Length 3-4 lines. — Elack. The face densely clothed with 

 pale fulvous pubescence ; on the cheeks, body beneath, and on the 

 legs it is cinereous ; the anterior tarsi pale rufo-testaceous, the in- 

 tciTuediate and posterior pairs are darker ; all are fringed with long 

 white pubescence ; a narrow line of white tomentum crosses the 

 thorax between the wings ; the wings as in the female. The apical 

 margin of the segments of the abdomen with a narrow fringe of 

 white pubescence, usually more or less obliterated ; the two apical 

 segments covered Avith hoary pile ; the apical segment notched in 

 the middle. 



Hah. Santarem. 



44. Megachile lobitarsis. 



Male. Length 5 lines. — Black ; the face densely clothed with pale 

 gold-coloured pubescence, on the vertex it is thin and fulvous ; 

 antenna) ferruginous, slightly fuscous above ; the cheeks fringed 

 with white pubescence. The thorax thinly clothed with fulvous, 

 on the sides and beneath the pubescence is white ; the wings fulvo- 

 hyaline, the nervures and tegulse ferruginous ; the legs ferruginous 

 beneath, the anterior pair palest, more or less fuscous above; the 

 anterior tibia) with a black line ; their tarsi dilated, yellowish, the 

 first joint oblong, produced at its apex into a projecting lobe ; 

 the following joints are minute and project each into a long 

 lobe ; the tarsi with a long curled white fringe, which has its 

 margin behind fuscous ; the intermediate and posterior tarsi jiale, 

 almost white ; the coxte armed with a blunt spine. Abdomen 

 shining; the margins of the segments with a narrow thin fringe 

 of pale pubescence ; the apical margin of the terminal segment 

 deeply emarginate. 



Hah. St. Paulo, on the Amazons. 



