1 82 Cameron, Hymenoptera Orientalia. 



Pleurae shining, impunctate ; except the meta- above the 

 keel ; the keel near the base of the mesopleurse distinct ; 

 the furrow in front of the apex is crenulated ; behind, at 

 the edge, brownish. The upper part of the metapleurae 

 sparsely punctured ; immediately over the spiracles is a 

 semicircular, shallow depression. Legs stramineous ; the 

 hinder coxae slightly, the hinder femora distinctly, fulvous. 

 Wings hyaline; the nervures blackish ; the stigma fuscous; 

 the areolet elongate, three times as long as its height ; 

 the transverse cubital nervures united at the top ; the 

 recurrent nervure is interstitial. Abdomen black, the 

 ventral surface white ; the base of the second and third 

 segments narrowly red, the red continued obliquely down 

 the sides to unite with a broad band on the apex ; the 

 third segment similarly coloured, but darker at the apex ; 

 the fourth rufous at the base only ; the petiole smooth at 

 the base ; the triangular depression moderately deep, and 

 continued down the middle to the base of the punctured 

 part as a wide, deep furrow, rounded at the apex ; its sides 

 and apex above, beyond the furrow, bearing large, deep 

 punctures ; the other segments strongly punctured ; the 

 punctures become closer and rougher ; the apices of the 

 second, third and fourth segments are impunctate. 



This species, in the coloration of the legs, agrees with 

 P. himalayensis, with which it also agrees in having two 

 longitudinal keels on the base of the median segment; but 

 it differs from it in the punctuation on the median seg- 

 ment being very much less strong and the punctures 

 fewer in number ; the punctuation on the abdomen is also 

 weaker, and it differs in the form of the petiole, in which 

 the apical furrow, so distinctly defined in the present 

 species, is represented in P. hiwialayensis by a mere shallow 

 depression ; lastly, they are easily separated by the form 

 of the areolet, and by P. himalayensis having the hinder 

 tibiae black and white, and the hinder tibiae fuscous. 



