Hymenoptera Orientalis. 269 



and there are two shallow furrows on the mesonotum, only 

 the four anterior knees, tibiae and tarsi are testaceous, this 

 being also the case with the hinder. $. 

 Had. Poona ( Wroughton). 



3. PSEN ORIENTALIS, Sp. nov. 



Niger, nitidus, alls fere hyalinis, nervis nigris, $. Long. 

 11 mm. 



Antennae distinctly thickened towards the apex, the 

 flagellum closely covered with a whitish pubescence, the 

 scape thickened, shorter than the third joint, which is twice 

 the length of the fourth. Front and vertex shining, im- 

 punctate, sparsely pubescent; the head below the antennae 

 covered densely with white depressed hair. Ocellar regions 

 raised, the ocelli not in pits. Eyes converging perceptibly 

 towards the bottom. Clypeus almost as in P. rufiventris. 

 Thorax shining, impunctate ; the basal area of median 

 segment not so clearly defined as in P. rufiventris ; the 

 keels less distinct ; and the apex of the segment is much less 

 distinctly reticulated, and there is a large depression in the 

 centre. Petiole on lower side bearing long white hair. 

 Pygidial area flat above, not convex, the sides keeled, the 

 base impunctate, the rest finely and closely punctured ; the 

 sides covered with longish fulvous hair. Legs covered with 

 white hair ; the hind spurs and claws ferruginous. The 

 second cubital cellule at the top is shorter than the space 

 bounded by the first recurrent and second transverse cubital 

 nervures ; the first recurrent nervure is received in the basal 

 third of the cellule, the second is almost interstitial. 



Apart from the difference in coloration, P. orientalis may 

 be known from P. rufiventris by the third antennal joint 

 being twice the length of the fourth, by the less clearly 

 hyaline wings, by the interstitial second recurrent nervure, 

 &c. 



Had. Madras {Rothney). 



