28 Cameron, Hymefioptera Orientalia. 



ocellus, where it bifurcates ; from the side of the fore ocellus 

 a narrower keel runs to the side, uniting with the larger 

 keel before the eyes ; the space between the keel and the 

 eyes is stoutly crenulated. On the upper half of the eyes, 

 but not touching them, is a narrow furrow ; behind, on the 

 upper half is a much wider, deeper, crenulated furrow ; 

 the lower part of the eyes on the inner and apical side is 

 distinctly margined by a keel. Antennae black, the scape 

 slightly, the flagellum broadly, testaceous beneath. Thorax 

 black, with a greenish tinge ; the mesonotum shagreened ; 

 a fine transverse furrow at the base of the scutellum ; 

 down the centre of the mesonotum are two wide furrows 

 which slightly converge towards the scutellum and are, 

 towards the apex, slightly crenulated ; in the centre are 

 two obscure longitudinal furrows ; and, outside the central, 

 there are two narrower, complete furrows, which are dis- 

 tinctly curved towards the base of the thorax. At the 

 base of the scutellum there is a wide, deep, straight furrow 

 behind the narrower one. Scutellum large, indistinctly 

 keeled down the middle ; the sides straight, distinctly 

 margined ; post-scutellum distinct; the sides obliquely 

 truncated towards the apex. Median segment with a 

 decided coppery-greenish tint ; the base completely areo- 

 lated ; all the areae being distinctly defined ; the middle 

 portion is entirely occupied by a deep pentagonal area, 

 wider than long and, of which, the apex is rounded 

 inwardly ; down its centre is a narrow furrow, and near its 

 apex are two stout, transverse, somewhat curved keels ; 

 the apex itself is perpendicular and transversely roughened. 

 In front of the tegulae are two or three stout keels, and 

 inside of these a few large, round punctures. Wings clear 

 hyaline, the stigma fuscous, paler above ; the costa in front of 

 it fuscous, the rest of it and the nervures yellow ; the second 

 cubital nervure narrowed on the lower side ; the second 

 recurrent nervure almost interstitial. Femora sparsely 



