94 Cameron, Hymenoptera Orientalia. 



the two uniting into one above the antennae and forming 

 a large, somewhat heart-shaped, area ; a stouter, broader, 

 blunter keel runs from between the middle of the ocelli 

 obliquely to the eyes ; the front broadly projects between 

 the antennae ; and from between them a broad furrow, about 

 three times as long as broad, runs down the face, Thorax 

 black ; the pro- and meso-thorax shining, impunctate. 

 The depression at the base of the scutellum is wide and 

 deep ; in its centre is a stout longitudinal keel, bordered 

 on either side lower down by a thinner one ; the post- 

 scutellum is placed much lower down than the scutellum ; 

 is hollow, wider than its length and ends in the middle at 

 the apex in a stout keel. The depression at the base of 

 the median segment is wide and deep ; the segment, 

 except at the base, is thickly covered with longish, dark 

 hair ; in the middle is one continuous area, narrow at the 

 base, becoming gradually wider to the apex, which 

 is rounded ; in it, before the middle, are two transverse, 

 not very stout or distinct, keels ; the upper lateral area is 

 a little wider than long, almost square ; in its outer side 

 is a depression which extends from top to bottom, be- 

 coming gradually narrower as it does so. Propleurae 

 deeply excavated, especially in the centre beneath, which 

 bears in the middle of the hollow, some stout, transverse 

 keels ; the mesopleurae at the base beneath has a deep 

 depression, wide at the bottom, narrow at the top ; where 

 it curves round to near the middle ; in the narrow top part 

 are three stout, transverse keels ; the upper two of which 

 are nearer to each than the lower pair are to each other ; 

 in the curved lower part are two distinct septa, forming two 

 large distinct foveae ; the lower being the larger and deeper. 

 The metapleurae are broadly raised in the middle, the raised 

 part very rough ; irregularly reticulated ; its apical part 

 deeply depressed, the depression divided in the middle by 



