236 P. CAMERON. 



tal cellule is distinctly longer, above and below, than the 1st or 3rd ; 

 the 3rd is much narrowed above, being there not one-fourth of its 

 length at the bottom, the 1st recurrent nervure is received near the 

 middle, the 2nd near the apex of the cellule. Legs thickly covered 

 with long black plumose hairs. Labial palpi 4-jointed ; the basal 

 joint four times longer than the 2nd ; maxillary palpi 6-jointed, the 

 joints of almost equal length. 



The body and legs are densely clothed with long hair ; the an- 

 tennae are hardly longer than the thorax ; the clypeus and labrum 

 are white; the latter is large and is gradually narrowed towards the 

 apex ; the fore spurs bear a large diaphaneous plate on the inner 

 side ; the long spur of the hinder calcaria is closely and uniformly 

 pectinated ; the claws are stout and bifid ; the pygidium has a nar 

 row, smooth bare area in its middle. The tongue is of moderate 

 length ; the hairs on the maxilla are long and plumose. The radial 

 cellule is shorter than the 3 cubital cellules united, being as long as 

 the 2nd and 3rd on the lower side. 



I unfortunately have only males of this species. Its affinities are 

 clearly with Centris, with which it agrees in neuration, body form 

 and in having the 3rd antennal joint greatly elongated ; but may 

 be known from it by the differences in the trophi and by the pecti- 

 nated spurs. 



Paracentris fulvoliirta sp. nov. 



Black ; the clypeus and labrum aud apex of the mandibles, on the underside, 

 pale yellow; the face, sides of the clypeus and the labrum covered with pale 

 fulvous hair; the upper side of the thorax thickly covered with long fulvous 

 haii-; the hair on the pleurae and the sternum with long soot-colored hair; the 

 hair on the abdomen and legs black ; the wings hyaline, the nervures and stigma 

 black. % . Length 15 mm. 



Antennse black, the flagellum fuscous. Clypeus smooth aud shining; its cen- 

 tre bare, the edges covered with long white hair. Except round the edges, the 

 labrum is distinctly punctured. Mandibles smooth and shining; the middle with 

 a l>>"g, deep groove ; the part between the end of the groove and the apex yel- 

 low. The front below the ocelli is smooth, bare and shining; the rest of it is 

 thickly covered with long black hair; the vertex in the centre has a patch of 

 long pale fulvous hair. The hair on the upper part of the thorax is long, thick 

 and pale fulvous; on the upper part of the thorax it is pale fulvous ; on the rest 

 of the pleurae and on the sternum it is long aud soot-colored. Abdomen black, 

 with a slight bluish tint; smooth and shining; the pygidium is bare in the mld.- 

 dle; at the base the bare part is raised and rufous. The ventral surface is thickly 

 covered with long, dark soot-colored hair. 



Hab.— Machachi, 9-10,000 feet. 



