MEGACHILE. 79 



The face with a mixture of pale and black pubescence ; the clypeus 

 naked and punctured. The thorax densely clothed with black 

 pubescence, that on the legs is also black ; the tarsi fulvous be- 

 neath, with the apical joints ferruginous ; wings fulvo-hy aline, the 

 nervures ferruginous. Abdomen shining ; the lateral patches of 

 pubescence of a lunate shape, the first pair widest apart ; clothed 

 beneath with pale pubescence in the middle, and with black on 

 each side, that at the apex entirely black. 



Hab. Parana. 



51. Megachile sedula. 



Female. Length 5 lines. — Shining black. The vertex impunctate ; 

 the clypeus punctured, its margin emarginate ; the face with white 

 pubescence on the sides, mixed with black between the antennae ; 

 the flagellum obscurely fulvous beneath ; the cheeks with white 

 pubescence. Thorax very finely and distantly punctured; the 

 pubescence black, with a tuft of white below and in front of the 

 tegulse, also a little white pubescence on the metathorax laterally ; 

 the legs obscurely rufo-piceous beneath ; the wings fusco-hyaline, 

 darkest at the anterior margin of the fore wings. Abdomen clothed 

 beneath with bright ferruginous pubescence. 



Hab. St. Domingo. 



'O v 



52. Megachile peruviana. 



Female. Length 4 lines. — Black, the abdomen shining, and clothed 

 beneath with white pubescence. Head closely punctured and semi- 

 opaque ; the clypeus more strongly punctured than the vertex 4 , its 

 anterior margin crenulated ; the face, on each side, with white 

 pubescence. Thorax closely punctured, its pubescence on the 

 sides, beneath, and on the metathorax thin and white ; wings 

 hyaline and iridescent, faintly clouded at the apical margins, the 

 nervures black. Abdomen more finely punctured than the thorax ; 

 the apical segment opaque, and covered with a cinereous pile ; the 

 apical margins of the segments narrowly fringed with white pubes- 

 cence, which is usually much obliterated. 



Male. Eather smaller than the female ; the front with white pu- 

 bescence ; the anterior margin of the clypeus with a minute tooth 

 in the middle. The thorax and wings as in the female. The 

 apical margins of the segments of the abdomen rufo-testaceous, and 

 more or less fringed with white pubescence ; the apical margin of 

 the sixth segment entire ; the apical margins of the three basal 

 segments beneath fringed with white pubescence. 



Hab. Peru. 



53. Megachile concinna. 



Female. Length 4 lines. — Black ; the head and thorax opaque, the 

 abdomen slightly shining, the pubescence entirely white. The 



