22 



Cameron, Hymenoptera Orientalia. 



scutellum ; rather thickly covered with longish fuscous 

 hair ; the hair on the pleurae and apex of the median 

 segment white. Median segment transversely irregu- 

 larly striated ; in its centre is a somewhat triangular 

 area which reaches near to the apex of the top part, 

 where it is rounded, and from which a straight keel 

 runs to the apex ; down the centre of the triangular 

 area are two keels not reaching the end of the area, 

 and bulging out at the apex. At the top of the oblique 

 apex are, on each side of the central keel, three areae, 

 the inner being the larger ; the rest of the arese irregular. 

 Wings clear hyaline, the stigma and nervures black ; 

 the radial, the base of the first and the second and 

 third cubital cellules, smoky. Legs thickly covered with 

 short white hair ; the anterior knees, tibiae, and tarsi 

 yellowish in front ; the apices of the four hinder coxae 

 and of the trochanters, a line below the apex of the 

 hinder tibiae, and the spurs yellow ; the femoral tooth 

 oblique, stout, twice as long as broad, the apex bluntly 

 rounded. Abdomen shining, impunctate, the apex and 

 ventral surface sparsely covered with long black hairs ; 

 the spots on the second segment obscure yellow (per- 

 haps discoloured) ; the third segment obscure testaceous 

 laterally at the base. 



Gastrosericus Binghami, sp. nov. (PI. 16, f. 8). 



Long. 5 mm. 6 . 



Hab. Barrackpore (Rothney). 



This species differs in too many points from G. Roth- 

 ney i to be its 6. It differs also from the type of the 

 genus (G. Waltii from Egypt) in having the clypeus 

 toothed in the middle. 



Head alutaceous, the vertex covered with a pale golden 

 microscopic down ; the orbits behind with silvery pu- 

 bescence ; the face and oral region thickly covered with 



