338 Mr. r. P. Pascoe on some new or little-known 



Narrow, subcylindrical, black, covered with a short, thin, greyish 

 pile ; head rather short, narrowed below the eyes, the vertex length- 

 ened ; lip and epistome small ; mandibles black, palpi ferruginous ; 

 eyes (for Niphona) large, black ; antennae shorter than the body ; pro- 

 thorax about equal in length and breadth, constricted anteriorly, the 

 lateral tubercle obtuse, with an indeterminate base ; the disk deeply 

 trisulcate, with three or four shorter sulci on each side ; scutellum 

 very transverse j elytra coarsely and remotely punctured, a little 

 broader than the prothorax at the base, gradually tapering in nearly a 

 straight line to the apex, which is shortly divaricate and very deeply 

 emarginate, with the two apiculi formed by the emargination nearly 

 equal in size and much produced, the base with two short crests, the 

 inner pilose, at the apical third an oblique indistinct huffish patch ; 

 legs and body beneath covered with long greyish hairs. Length 8 

 lines. 



At first sight this species might be readily taken for N. FercUnandiy 

 Paiva ; they are, however, abundantly distinct. Touching only a 

 few characters, it may be remarked that the shorter head and larger 

 eye brings this latter organ in pretty close approximation to the 

 base of the mandibles ; the palpi ferruginous, not pitchy black ; on 

 the prothorax the sulcations are deeper, and the two central elevated 

 lines are entire ; the elytra are longer and narrower, the apex shortly 

 divaricate, the emargination very considerably broader and deeper, 

 and the inner as well as the outer apieulus equally prominent and 

 pronounced (in N. Ferclinandi, the inner apieulus is sloped away 

 obliquely^ ; there are also the two crests at the base, and the patch 

 posteriorly on the elytra, no trace of either of which exists in N. 

 Ferdinandi. Numerous specimens of both species have been re- 

 ceived from M. Mouhot. 



Niphona arrogans. 



N. fusca, griseo pubescente varia ; prothorace transverse sexcristato ; 

 elytris rude punctatis, basi latis, apice sinuatis. 



Hab. Borneo. 



Robust, dark brown, with a short, varied, greyish pile ; head grejdsh, 

 with a few scattered punctures ; antennae shorter than the body, brown 

 varied with grey, particularly at the bases of the third and succeeding 

 joints; prothorax transverse, narrower anteriorly, bituberculate at the 

 side, the disk with a series of six short, longitudinal crests, forming a 

 curved line sweeping round from the two lateral tubercles to near the 

 base, greyish, darker or more fulvous posteriorly ; scutellum small, very 

 transverse ; elytra rugosely subplicate longitudinally, with numerous 

 coarse crowded punctures, broad at the base, tapering gradually be- 

 hind, the apex sinuate ; legs short, varied with grey and brown, the 

 intermediate and posterior tibiae black at the apex externally, claw- 



