98 



[May, 



the species placed by me under the first section of the genus {ante, pp. 42, 

 43) ; the fourth tarsal joint is strongly hilobed, as in D. lohigeriis; and 

 the seventh ventral segment of S is dentate on each side at apex as in 

 the last-named insect. 



8 (5). — Dianous crihrarius, n. sp. 



(5 . Rohust, shining, nigro-cyaneous, the elytra (the humeri excepted), 

 antennae, and palpi black ; finely cinereo-puhescent, the prothorax and elytra 

 subglabrous. Head large, sparsely punctured and broadly depressed between 

 the eyes, and rapidly narrowed behind them, the intra-ocular grooves deep, not 

 very widely separated, the intervening space polished in the middle ; eyes 

 large; antennae moderately long, very slender, joints 9-11 rather stout. Pro- 

 thorax narrow, oblong-subcordate, coarselv, irregularly punctate, the disc with 

 a deep oblique groove on each side at about the middle, the grooves separated 

 by a narrow oblong, polished median space, the punctures transversely coales- 

 cent at the base. Elytra wider than the head, barely as long as broad, rounded 

 at the sides posteriorly ; coarsely, irregularly, rather sparsely punctate, the 

 punctures on the outer part of the disc here and there confluent ; depressed 

 along the suture, near the humeri, and across the disc behind the middle. 

 Abdomen sparsely, minutely, the transvei-se sulci closely and much more 

 coarsely, punctured ; ventral segments uniformly punctate, the fifth triangu- 

 larly emarginate ; anal brushes long. Legs comparatively stout ; fourth tarsal 

 joint strongly bilobed. 



Length 8 mm. 



Hah. Ikdia, Tanakpur {R. G. C. : xii.1918). 



One male, separable from all the known Indian forms by the very 

 shining surface ; the slender antennae ; the coarsely punctured prothorax 

 and elytra, the latter in great part black, uneven, and with the punctures 

 somewhat distant one from another ; the comparatively smooth convex 

 portions of the dorsal surface of the abdomen ; and the strongly bilobed 

 fourth tarsal joint. 



9 (ff). — Dianovs luteogvftattis, n. sp. 



2. Black, with a faint brassy lustre in certain lights, the elytra each 

 with a small, rounded, shining luteous spot on the disc beyond the middle ; 

 moderately shining, the abdomen, under surface, and legs fiuelj' pubescent. 

 Head broad, closely punctured, rapidly narrowed behind the eyes, and broadly 

 excavate between them, the intra-ocular grooves convergent anteriorly, deep, 

 the eyes large; antennae long, extending beyond the base of the prothorax. 

 Prothorax as long as broad, narrow, uneven, constricted at the apex and 

 towards the base, the intervening space parallel-sided as seen from above ; 

 densely, rather coarsely, rugosely punctured, the punctures more or less con- 

 fluent and separated by oblique rugae, the disc obliquely compressed on each 

 side before and behind the middle, and flattened in the centre at the base. 

 Elytra nearly twice as broad as the prothorax, subquadrate, rounded at the 

 sides posteriorly ; dejiressed on the disc beyond the middle, along the suture 



