232 P. CAMERON. 



Antennae black; the scape covered with long white hair; the flagellum bare. 

 Front and vertex shagreened ; the face and clypeus have a distinct metallic 

 color and are distinctly and closely punctured, the clypeus more distinctly than 

 the face; it has the apex of the clypeus deeply punctured, dark bronze in color, 

 and is broadly and deeply depressed in the middle. Mandibles rufous near the 

 apex. Thorax closely, minutely and uniformly punctured ; the basal area on the 

 metanotum is not defined. Legs black, thickly covered with long white, soft 

 hair; the thick hair on the tarsi has a pale golden hue. Wings clear hyaline, 

 the nervures and stigma black ; the 2nd cubital cellule above, is about one-third 

 shorter than the third ; it receives the recurrent nervure at its apex, shortly be- 

 fore the 2nd tranverse cubital nervure. Abdomen sparsely covered with long 

 white soft hair ; the olive-blue basal half is shagreened ; the apical black, smooth 

 and shining; the last segment becomes gradually narrowed towards the apex, 

 which is rounded ; its sides are distinctly margined ; it is smooth, bare, shining 

 and for the greater part brown. 



Hab.— Machachi, 9-10,000 feet. 



Megarillisa albofimbriata sp. nov. 



Black, the head and thorax thickly covered with white hair ; as is also the 

 basal abdominal segments; the 2nd, 3rd and 4th segments are fringed with white 

 hair on the apex; the legs covered with black hair; the wings hyaline, their 

 apical half with a faint violaceous tinge, the stigma and nervures black. £>. 

 Length 17-18 mm. 



Antennae black ; the scape covered with longish black and white hair. Front, 

 face and clypeus thickly covered with white hair, which is longest on the face; 

 the vertex is thickly covered with long black hair. Mandibles smooth and shin- 

 ing, black, ferruginous at the apex; their lower side fringed with long white 

 hair. The thorax has the pronotum and metanotum covered with long white 

 hair ■ the hair on the mesonotum (which is smooth and shining) is sparser, blacker 

 and shorter. The hair on the pleurae is black ; on the sternum it is longer and 

 black. The radius has the base curved and thickened ; the 2ud cubital cellule at 

 the top is about one-third of the length of the 3rd ; the recurrent nervures are 

 received very shortly in front of the transverse cubitals, their apices touching 

 them. The anterior tarsi are brownish ; beneath they are thickly covered with 

 dark rufous hair, this being also the case with end joints of the middle pair. 

 Abdomen smooth and shining; the 2nd, 3rd and 4th segments are covered with 

 short, black hair, except at the apex; this is also the case with the apical seg- 

 ments which have their apices thickly covered with long black hair. 



Hab.—S. Lucia, 8000 feet; Hac. S. Rosaria, 10,350 feet. 



Megachile autisaiiellre sp. nov. 



Black ; the head, thorax and base of abdomen thickly covered with long pale 

 fulvous hair; the hair on the apical four segments of the abdomen deep black, 

 its apex ending in two stout, longish teeth ; the apical tooth of the mandibles long 

 and acutely pointed ; the basal abscissa of the radius nearly as long as the second. 

 Length 11 mm. 



Antennae as long as the thorax, black ; the last joint is distinctly longer than 

 the preceding; it is slightly contracted at the base; its apical half is flattened 



