PHYTOPHAGA FROM SUMATRA 409 



interstices long-itudinally costate at the sides, where the punc- 

 tui-es, are coarse and somewhat continent, underside and legs 

 strongl}^ punctured, sparingly cdothed with short grey pubescence, 

 presternum broad , rugose , not separated hj a suturai groove 

 from the episternum. 



Hab. Si-Rambé. 



This small species seems to possess all the structural characters 

 of Apolepis except that the legs are not dentate although some 

 slight trace of a tooth is just perceptible if carefully examined ; 

 the species differs from .1. aspera, Baly in its more siiining and 

 much less closely punctured thorax and elytra and in the diffe- 

 rent character of the pubescence which consists of single strongly 

 curved short hairs, not adpressed scales, the punctures are also 

 much more distantly and regularly placed. 



oil. Tricliona sulcatipennis, n. sp. — Fulvous, the liead and 

 thorax impunctate, elytra longitudinally sulcate, the sulci scar- 

 cely punctured, forming eight or nine rows, the interstices 

 costate at the sides. 



Length 1 V2 line. 



Ovately subquadrate, the liead impunctate, the eyes distinctly 

 emarginate at their inner edge, clypeus separated from the face 

 h\ a distinct transverse groove, broad,' impunctate, labrum and 

 palpi fulvous , mandibles piceous , antennae extending beyond 

 the middle of the elytra, fulvous, the second joint short and 

 thick , the third and following joints elongate , nearly equal , 

 thorax more than twice as ))road as long, the sides strongly 

 rounded, the posterior margin produced and rounded at the 

 middle, the surface deilexed near the anterior angles, impunctate, 

 shining, or very linely and sparingly punctured, when examined 

 under a strong lens, scutellum as broad as long, elytra without 

 Ijasal depression, impressed with al)out nine rows of longitudinal 

 grooves, which are scarcely perceptiljly punctured ; the interstices 

 convex at the sides and impunctate, underside and the legs 

 coloured like the upper surface, intermediate tibiae emarginati- 

 at the apex, anterior femora with a tooth, claws bifid. 



Ilab. Sumatra (coll. Dr. Kraatz and my o\\n). 



