from the Oriental Zoological Region. 57 



front reticulated distinctly and more closely from the middle 

 of the ocellar region ; the face and clypeus thickly covered 

 ^Yith long white hair and keeled in the middle. Mandibles 

 pmooth, testaceous near the apex ; the palpi pilose, dark 

 fuscous. Thorax black, thickly covered with long white 

 liair ; on either side of the pronotum above is a white tubercle- 

 like mark. Median segment reticulated, the centre with two 

 longish slightly oblique keels, bounded at the apex by a 

 transverse one ; the apex of the segment is oblique, Post- 

 scutellum stoutly longitudinally striated. Pro- and meso- 

 pleurge smooth ; the metapleurse obliquely striated. Wings 

 hyaline, iridescent ; the nervures are paler than the costa or 

 stigma ; the first transverse cubital nervure is obliquely 

 curved above and has, at the angle thus formed, a distinct 

 branch at the base. Abdomen shining, closely but not 

 strongly punctured ; the third segment is depressed at the 

 apex and closely transversely striated ; the ventral segments 

 are closely punctured, the apex of the third is depressed and 

 striated at the sides. 



D. hipunciatusj Bingham, from Burma, comes near to this 

 species, but may be known from it by the head in front being 

 densely punctured, not reticulated. The sides of the meso- 

 notum at the base are raised near to the tegulae, which are 

 edged with white at the base; the antennal lamina is trian- 

 gularly depressed in the middle, its apex not quite transverse; 

 the furrow on the centre of the mesosternum is distinct, the 

 lateral one is narrower and indistinct towards the apex. 

 This makes the fourth species of Dolichurus known from 

 India. 



Khasia Hills. 



Ampulex [Rhinopsis] nigricans, sp. n. 



Niger, abdominis apice rufo ; alia hjalinis, apice fumato. $ . 

 Long. 8 mm. 



Comes into Bingham's section " B. a}. Petiole linear at 

 base, nodose at apex," which is now divided : — 



Thorax and legs entirely black nigricans. 



Thorax for the greater part rufous, as are also the legs. . constancecB. 



Thorax and legs entirely black. Antennas almost bare, 

 perceptibly thickened towards the apex, the third joint more 

 than twice the length of the fourth. Head opaque, sparsely 

 covered with short white pubescence ; the vertex coarsely 

 aciculated ; the front obscurely reticulated, indistinctly fur- 

 rowed down the middle. Clypeus aciculated, shining at the 



