234 Mr. P. Cameron on Twelve Nao Genera and 



median segment ; in the position of the spiracles on the 

 petiole, and in having the stump of a nervure on the 

 disco-cubital nervure, it agrees with the Ichncumonina. 



Buathra ritjiventris, sp, nov. 



Black ; the abdomen from the apex of the petiole and the legs 

 ferruginous ; the antennal scape in the middle below ; the inner 

 orbits narrowly above, broadly below — the band becoming broader 

 beyond the middle and narrowed obliquely towards the apex — a 

 mark, rounded at the apex, in the centre below the antennce, the 

 clypeus, mandibles, except the teeth, the palpi, the outer orbits 

 narrowly, except above, the tegulse and tubercles, yellow. The 

 four front coxse and trochanters are yellow in front and at the sides ; 

 the middle trochanters are black behind ; the hind coxaj and base 

 of trochanters black ; the apical four joints of the hinder tarsi 

 spinose. Wings hyaline, the nervures and stigma black, ^ . 



Length, 15 nmi. 



Rah. Khasia Hills, Coll, Rothney. 



Head densely covered with glistening, silvery-white pubescence. 

 Face strongly punctured. Median segment with a gradually 

 rounded slope to the middle, the apex oblique. Thorax covered 

 with glistening white hair, closely and strongly jjunctured, the 

 pleura more strongly than the mesonotum ; the metapleuraj at the 

 apex coarsely obliquely striated. The punctures on the scutellum 

 large and clearly separated ; the basal depression large and with 

 some stout striae. Post-scutellum longitudinally striated in the 

 centre. Petiole strongly aciculated except at the apex, as are also 

 the sides and ventral surface. 



Ampulex khasiana, sp. nov. 



Length, IG mm. $ , 



Rah. Khasia Hills. Coll. Rothney, 



Agrees closely with A. longicollis, Cam., but is smaller, 

 the prothorax is not quite so long nor so distinctly narrowed 

 at the base ; the apex of the median segment is not 

 reticulated at the end of the transverse striations; the 

 fovea at the apex is neither so deep nor so clearly defined, 

 the narrowed basal part is longer and more distinctly 

 separated, and the bordering nervure on the radial nervure 

 is not so curved at the apex. 



Antennae black, moderately stout, the 3rd joint about twice the 

 length of the 4th. Head dark purple, coarsely punctured above the 



