252 Mr. P. Cameron on new 



ceous and are thickly covered witli white hair. The wing3 

 appear to be sliorter than u^ual ; the third cubital ceUulc 

 above is less than twice the length of the first. Abdomen 

 smooth, the apices of the segments and the ventral surface 

 brownisii ; the apices of tiie segments are covered with white 

 ])ubesceiice. 



In Bingham's arrangement (Fauna Brit. Iiul., Hymen, i. 

 p. 449) this species would come in near the doubtful N. vincta, 

 Walker. Cliaracteristic is the sharp distinct keel on the 

 base of the pronotum, which is flatter above and more largely 

 developed hiterally than usual. The base of the basal abdo- 

 minal segment, too, is more depressed — almost furrowed — in 

 the middle than usual. The pygidium is covered with de- 

 pressed golden pubescence, except in the middle, wiiere there 

 is a bare black longitudinal line almost as in llalictus. The 

 tegula; are of moderate size. 



Nomia albqfiinbriata, sp. n. 



Black; the mesonotum and scutellum covered with rufo- 

 fulvous pubescence, the rest of the thorax and the head more 

 sparsely with cinereous pubescence ; the basal four abdo- 

 minal segments with their apices narrowly lined with white 

 pubescence ; the hair on the femora and on the upperside 

 of the tibiaj and tarsi white, on the underside of the tibiae 

 and tarsi rufous ; the wings are hyaline, the stigma testa- 

 ceous, the nervures paler. ? . 



Long. 8-*J mm. 



Hab. Barrackpore, Bengal [Rotkney). 



AntennfB black, the flageilum brownish beneath ; the scape 

 sparsely covered with long white hair. The front and vertex 

 are closely punctured, the vertex laterally smooth and shining ; 

 there is a narrow furrow down the centre of the front; the 

 front is covered with white, the vertex more sparsely with 

 longer fuscous pubescence. The face and clypeus coarsely 

 alutaceous, opaque, covered with a white pile and sparsely 

 with longish black hairs. Mandibles black, shining, and 

 with a rufous band behind the apex. iMesonotum closely and 

 distinctly punctured and covered with rufo-fulvous pubes- 

 cence ; the hair on the scutellum is similarly coloured, 

 but much longer. Median segment short, shining, acicu- 

 latcd; the basal area is closely and finely transversely 

 striated. Wings clear hyaline throughout. Calcaria pale. 

 Abdomen shining, impunctale ; the basal segment at the base 

 is sparsely covered with white hair; the apices of the basal 

 lour segments are narrowly banded with white pubescence; 



