io8 Cameron, Hymcnoptera Oricntalia. 



the mandibles broadh' at the base, rufo-testaccous; the 

 palpi }'ello\v; the face strongl}' punctured ; the punctures 

 large, deep, and clearh' separated ; the front and vertex 

 smooth and shining, sparsely and shortly haired ; 

 the face rather thickly covered with long pale hair. 

 Thorax black, smooth and shining ; the teguhe, scutellum 

 and post-scutellum, lemon-}-cllo\v ; the pleur;t and meta- 

 notmn thickl}- covered with long pale hair ; the propleura^ 

 crcnulated at the apex ; the mesopleurct fincl\- punctured; 

 the apical half of the mesopleura; largely excavated. 

 Mesosternum thickly covered with long fuscous hair ; its 

 middle depressed. On the metapleur^e, enclosing the 

 spiracles, are two curved longitudinal keels, which con- 

 verge towards the apex ; the distance between them at 

 the base being greater than at the apical half Legs black ; 

 the anterior legs, except at the base and for a large mark 

 on the femora behind, the middle knees, basal half of 

 tibiai and tarsi, and the basal two-thirds of the hinder 

 tibiae, lemon-yellow ; the hinder tarsi fuscous. Wings 

 h\^aline; the stigma and nervures fuscous. Abdomen 

 smooth and shining, deep black ; the apex of the petiole, 

 and the second segment entirely, lemon-yellow. 



TiLGIDA, ge7i. nov. 



Fore wings without an areolet, the only transverse 

 cubital nervure very short, so that the cubital and the 

 radial nervures approach each other ver\- closel}- ; the 

 recurrent nervure is received about four times its length 

 from it ; the transverse median is received shortly behind 

 the transverse basal. Eyes very large, their inner orbits 

 straight and converging slightly, but distinctly, on the 

 lower side ; the orbits arc very little developed behind, 

 and are roughly striated above. Clypeus small, its apex 

 transverse ; the labrum is longer than it. Mandibles 



