90 Cameron, Hymenoptera Orientalia. 



very large and deep, and with a keel in the middle at 

 the apex; the lateral keels large, acute. Postscutellum 

 depressed ; its sides carinate ; at the apex of the meso- 

 notum is a stout bordering keel which projects into the 

 centre of the postscutellum sharply ; and, from the centre 

 of the projection, a stout, straight keel runs down to the 

 base of the median segment, which is obliquely raised and 

 keeled in the middle. The median segment is stoutly 

 transversely striolated, most strongly at the base ; the top 

 of the depression is keeled ; the central area is longer, by 

 about one-half, than its breadth ; its base is angled, but not 

 acutely; the apex is transverse ; the lateral arese are of the 

 same length ; they are wider and open at the apex on the 

 inner side ; the bounding apical nervure being interrupted 

 on one side in all three arese ; the apex of the segment is 

 rough, irregularly reticulated. Propleurae smooth ; its apex 

 obscurely crenulated ; the mesopleurse punctured all over; 

 the oblique furrow wide and deep, bearing stout, widely- 

 separated keels ; the longitudinal furrow wide; the meta- 

 pleurae more closely and strongly punctured than the 

 meso- ; the basal furrow wider and deeper than that on the 

 apex of the mesopleurse ; the three keels in it stout; 

 the upper separated from the central by a greater distance 

 than that is from the lower ; the lower part from the base 

 is irregularly keeled, and from the centre of this keel a 

 stouter, straight one runs to the apex, forming a triangular 

 area. Legs, especially the coxse and femora, closely punc- 

 tured ; thickly covered with short hair, which is somewhat 

 fulvous in tint on the front legs ; the hinder tarsi and the 

 hinder tibise, except for a rufous band near the base, 

 black. Wings yellowish hyaline; the apex slightly infus- 

 cated ; the spot behind the stigma is longer than its 

 breadth and brownish ; the lower part of the stigma is pale 

 yellow; the areolet is rounded at the top, the nervures 



