58 Cameron, Hymenoptera Orientalia. 



above, coming from the base of the antennae, are two 

 keels which become stouter and converge, but do not 

 unite, at the apex above the base of the clypeus, the two 

 being united there by a stouter transverse keel. The 

 clypeus is transverse at the apex ; rounded at the base, 

 the middle depressed. Mandibles short, thick, rufous in 

 the middle ; the apex with a depression in the centre. 

 Palpi long, sparsely covered with short, pale hair ; the 

 basal joint of the maxillary black. Thorax black, shining ; 

 the base with a semiperpendicular slope ; the middle 

 lobe of the mesonotum raised, distinctly separated 

 from the lateral at the base ; the latter are more 

 shining. Scutellum pyramidal, sharply pointed in the 

 middle on the top; the base punctured, the sides with 

 two or three stout keels. Post-scutellum depressed above, 

 rounded at the apex, which is raised in the centre. The 

 median segment elongate, the base distinctly separated 

 from the apex of the mesonotum; in the centre are two 

 stout keels, which enclose a smooth, shining, glabrous 

 area, narrowed at the base, the sides strongly irregularly 

 transversely striolated. Propleurae stoutly, obliquely and 

 widely striolated ; the upper part finely and closely 

 striated. Mesopleurae smooth, shining, and glabrous ; the 

 base and apex crenulated ; the upper part under the wings 

 raised, the raised part finely and closely punctured, and 

 gradually narrowed towards the apex. Metapleurae 

 coarsely reticulated; the base above depressed, thickly 

 covered with long, white hair. Mesosternum shining, 

 smooth, thickly covered with short, black hair; the central 

 furrow broad, rather shallow, the apical half with some 

 transverse keels. Wings hyaline with a very slight fuscous 

 tinge ; the two transverse cubital nervures have an oblique 

 slope, and are both bullated on the lower side ; the 

 recurrent nervures are entirely obliterated. Legs fulvous ; 



