o24 ^Ir. P. ( 'ameron on new 



oblique slope. In fresh examples probably the whole of the 

 mesonotum would be covered with reddish pubesceuce. 

 Belongs to the group oi Discolia histrionica, F. 



Tiphia Rothneyi, sp. n. 



Black ; the wings fuscous violaceous ; the pro- and meso- 

 pleuree smooth, impunctate; the postscutellura smooth, 

 distinctly furrowed down the centre ; the central keel ou 

 the median segment indistinct on the apical half of' the 

 segment. $ . 



Length 16-17 mm. 



Hab. Khasia. Coll. Rothney. 



Head above the antenuse coarsely punctured, shining ; the 

 clypeus closely punctured, its apex smooth and with a 

 rounded incision. Pronotum coarsely punctured ; the apex 

 and the basal slope smooth. Mesoaotum in the middle 

 coarsely punctured ; the scutellum with a row of large punc- 

 tures round the sides and apex, and with a few punctures in 

 the middle. Postscutellum smooth and deeply furrowed 

 down the middle. ^ledian segment opaqite, shagreened ; 

 there are three keels, the middle keel interrupted beyond 

 the middle; the apex depressed and striated behind the keel. 

 Pro- and mesopleurse smooth, shining, and almost glabrous ; 

 the basal half of the metapleurse smooth, the apical closely 

 punctured. Abdomen shining ; there is a row of punctures on 

 the apex of the first, and an interrupted one on the base of the 

 second segment, which is depressed ; the third, fourth, and 

 fifth segments are minutely punctured, except in the middle; 

 the apices of the dorsal segment and the greater part of 

 the pygidium bear long fuscous pubescence; the ventral 

 segments fringed with long white hair. 



Characteristic of this species are the smooth impunctate 

 pro- and mesopleurae and the smooth deeply furrowed post- 

 scutellum. It comes close to T. fumipennis, Sm., from 

 Borneo, which may be known from it by the mandibles 

 being entirely ferruginous, by the pro- and mesopleura? being 

 distinctly punctured and thickly covered with longish white 

 pubescence, and by the postscutellum not being furrowed. 

 In T. fumipennis the median segment is opaque ; the surface 

 is strongly and closely aciculatid, more strongly at the base 

 than at the apex; the central keel does not reach to the 

 apex of the basal part of the metanotum, on either side of 

 it is an irregular, waved, longitudinal keel ; on the apical 

 third some stout irregularly curved keels which almost form 

 reticulations ; there is a distinct keel above the antennse ; 



