Ilymcnoptera from the KJiasia Hills. 329 



broad and larger in its centre ; the apex is depressed, irre- 

 gularly punctured, and with a rounded incision in the middle. 

 Mesouotum rugosely reticulated; the scutellum more strongly 

 rugosely reticulated ; the postscutellum coarsely longi- 

 tudinally striated. ]\Iediau svgment reticulated above ; the 

 centre with curved striae, the bottom alutaceous; the central 

 keel is triangularly cleft and has a keel in the centre of the 

 fork. Pi"o- and mesopleurse rugosely reticulated ; there is a 

 longitudinal depression in the middle, which bears six per- 

 pendicular keels. The base and lower part of the metapleurse 

 smooth, the rest reticulated. The basal segments of the 

 abdomen closely, but not very strongly, punctured ; the 

 third, fourth, and fifth are more strongly and deeply punc- 

 tured than the basal ; the apical sparsely punctured, smooth 

 at the apex. The basal part of the petiole beneath is coarsely, 

 irregularly, transversely striated; the apical smooth, bounded 

 behind by a transverse furrow and covered with white pile. 

 This is the largest of the known Indian species. 



Rhynchium collinum, sp. n. 



Black; the scape of the antennae below, a mark narrowed 

 towards the middle above, over and between the antenna, an 

 interrupted line on the pronotum, the greater part of the 

 basal half of the postscutellum, two marks on the sides of 

 the median segment, the lower longer and narrower than the 

 upper, a mark, longer and broader, in front of and below the 

 tegulae on the pleurae, and a yellow line, interrupted iu 

 the middle, on the base of the basal two abdominal segments, 

 yellow. Legs black, thickly covered with white pubescence ; 

 the extreme apex of the anterior femora, the apical third of 

 the middle, and almost the apical portion of the hinder half 

 of the posterior reddish; the apices of the tarsi rufous. 

 Wings fuscous violaceous. ? . 



Length 17 mm. 



Hab. Khasia Hills. Coll. Rothney. 



Front and vertex coarsely punctured, the punctures almost 

 forming reticulations in the centre ; they are thickly covered 

 \A ith long fuscous hair. Antennal keel distinct, sharp. Face 

 and clypeus rugosely reticulated and punctured; the apex of 

 clypeus projects in the middle, smooth and depressed; the 

 sides obhquely project. Pro- and mesonotum closely rugosely 

 punctured, the punctures larger and running into reticula- 

 tions on apex of mesonotum. The scutellum is more strongly 

 rugosely punctured . The basal half of postscutellum rugosely 

 punctured, the apical longitudinally striated. The apical half 



