Hymenoptera Orientalis. 465 



little developed behind the eyes and the abdomen subsessile ; 

 but is smaller, narrower, and more slender ; the wings are 

 subhyaline throughout, not yellowish or infuscated at the 

 apex ; the second cubital cellule is much longer at the 

 bottom compared with the third ; the third being of the 

 length of the space bounded by the first transverse cubital 

 and the first recurrent, the latter being received at a greater 

 distance from the transverse cubital ; the second recurrent 

 is received in the apical fourth of the cellule, not before the 

 middle, and lastly the long spur of the metatarsus reaches 

 almost close to the apex of the metatarsus. 



POMPILUS DELHIENSIS, Sp. nov. (PI. III. f II). 



Black, densely covered with a silvery pubescence, espe- 

 cially thick on the face, median segment and on the apices 

 of the abdominal segments ; wings yellow, a broad fuscous 

 band at the radial cellule. Head slightly convex in front, 

 more deeply concave behind. Eyes slightly arcuate at top, 

 at bottom almost parallel ; ocelli large, forming almost a 

 triangle ; the hinder separated from each other by a greater 

 distance than they are from the eyes. The front with an 

 obscure furrow. Clypeus rounded bluntly and rufous at 

 apex ; the centre with a minute incision ; mandibles 

 ferruginous, black at top ; palpi fuscous. Prothorax 

 a little shorter than the head, the sides slightly convex. 

 Median part of scutellum not much narrowed towards 

 the apex. Median segment shorter than the mesothorax, 

 above with a gentle slope ; the apex oblique, with 

 a slight inward curve. Abdomen subsessile ; curved, 

 a little longer than the head and thorax united ; the 

 segments with a silvery band at the apices : the apical 

 segment acute, shining, impunctate, and bearing a few long 

 blackish hairs. Legs stout, densely pruinose, the tibiae and 

 tarsi thickly spined ; the base of hind tibiae with a white 

 mark behind. The spurs white, reaching to the middle of 



