236 Mr. P. Cameron on Ttoelve New Genera and 



Tlie pro- and iiiesonotum are largely tinted with green ; the 

 metanotuni is deep purple, blue at the base and apex and, to a less 

 extent, on the sides. 



Ampulex assamensis, sp. nov. 



Length, 13 mm. ^ 



Hah. Khasia Hills. Coll. Rotliney. 



Antennae black, the apical joints perceptibly curved, the scape 

 thickly covered with pale pubescence ; the 3rd joint slightly, 

 but distinctly, longer than the 4th. Head coarsely rugosely 

 punctured, the front transversely striated in the middle, the temples 

 obliquely narrowed ; the antennal tubercles stout, longish, narrowed 

 above, slightly curved ; the temples narrowed. Clj^peus green, 

 thickly covered with long white hair ; its apex ends in a triangular 

 tooth, there being no lateral ones. Labrum brownish, thickly 

 covered with long white hair. Mandibles black, the apex rufous, 

 the base punctured. Eyes only very slightly converging above, 

 where they are separated by slightly more than the length of the 

 2nd and 3rd antennal joints united. The thorax coarsely punctured, 

 the prothorax and sides of the mesonotum blue, the middle of the 

 metanotum indigo-blue ; sparsely covered with long black hair. 

 The middle lobe of the median segment is stoutly striated ; the 

 striae distinctly curved, those at the base irregularly curved ; the 

 central keel is distinct ; the outer areai are more closely and regularly 

 striated ; the projecting apex is deeply hollowed, the hollow being 

 wider than long and bounded behind by three fovea*, there being 

 another fovea behind the outer of these. The apex of the segment 

 is largely, irregularly reticulated, the upper reticulations being the 

 larger, the lower of the two teeth is small and triangular. Pro- and 

 mesopleura3 distinctly punctured, except on the middle of the former 

 and apex of the latter ; the metapleurte strongly reticulated. The 

 mesosternal process large, its sides oblique on the inner, rounded on 

 the outer-side. The four hinder femora are bright red ; the anterior 

 femora and tarsi of a duller red ; the femora are blue behind ; all 

 the tarsi black ; the hinder claws are stoutly bifid, the hinder claw 

 the stouter and shorter. The first two abscissae of the radius are 

 equal in length ; the Lst transverse cubital nervure is only indicated 

 slightly below. The narrowed basal part of the petiole is short, the 

 middle triangular and with a curved furrow on the sides at the base ; 

 it is sparsely punctured laterally ; the apex is more strongly punc- 

 tured ; the 2nd segment is more closely punctured all over ; the 

 apical segments are coarsely and deeply punctured below ; the 



