On new Uymenoplera from the Khasia Hills. 313 



XLIx''. — On some new Genera and Species of Parasitic and 

 Fossorial Hymenoptera from the Khasia Hills, Assam. 

 By P. Cameron. 



[Coucluded from p. 18o.] 

 li E RE S I A R C H 1 \ I. 



geii. nov. 



Mandibles toothless, becoming gradually narrowed. La- 

 brum large. Antennte dilated beyond the middle. Scutellum 

 flat, not margined. Median segment areola:ed ; the areola 

 open at the base, about three times longer than broad ; 

 spiracles linear. Abdomen 'svith seven segments, narrow, 

 long ; its apical segment bluntly rounded, large, not narrowed 

 below ; the sheath of the ovipositor projecting, pilose; the 

 ventral keel extends to the end of the third segment. Areolet 

 5-angled, narrowed above. Clypeus broad, its apex trans- 

 verse. Occiput rounded inwardly, not distinctly margined. 



The abdomen is longer and narrower than usual, and is of 

 almost equal width to the penultimate segment ; it has a cylin- 

 drical appearance; the pygidium is semicircularly depressed 

 between the cerci. Head larger than usual, as wide as the 

 mesothorax. The apex of the hind femora reaches to the 

 middle of the third abdominal segment. The middle abdo- 

 minal segments pi'oject at the apices below. 



A genus easily known by the large head, unidentate man- 

 dibles, and long, narrow, cyhndrical abdomen. 



Ncenaria grandiceps, sp. n. 



Black ; the face, clypeus, labrura, inner orbits narrowly, 

 the outer narrowly above, the base of the mandibles, a line 

 on the pronotum, two short lines on the me^onotum, the 

 scutellar keels, the scutellum broadly laterally, postscutellum, 

 a square mark enclosing the spiracles on the metanotum, a 

 larger mark on the apex extending on to the spiracular area, 

 base of pronotum, the lower half of the propleune at the base, 

 the lower half of the mesopleurse in the middle, a line, gradu- 

 ally narrowed below, on the metapleurse under the wings, and 

 two irregular marks on the apex of the sternum, pale yellow. 

 The four apical segments of the abdomen have a bluish hue, 

 the apex of the petiole broadly, two large conical marks on 

 the apex of the second segment, a large triangular one ou 

 the side of the third, a much smaller one rounded and 



