1887.] PHYTOPHAGOUS COLEOPTERA OF CEYLON. 09 



Head closely granulate-punctate, black, the lower part of the 

 face flavous. Antennae dentate from the sixth joint, the two or 

 three lower joints flavous, the rest black. Thorax strongly raised 

 posteriorly into an undivided hump, extremely closely and finely 

 granulate-punctate, black ; the hinder portion of the elevation as 

 well as some indistinct spots placed anteriorly, fulvous ; a more 

 distinct similarly coloured spot is placed at each side of the eleva- 

 tion. Scutellum transverse, its posterior margin emarginate. 

 Elytra slightly constricted at the middle, of a more brownish colour, 

 more strongly punctured than the thorax ; each elytron with an 

 indistinct ridge from the middle of the base to the apex and joined 

 by a shorter one commencing at the shoulder; the subsutural ridge 

 is joined to the suture at the middle by a short transverse elevation, 

 and ends near the apex in a strongly raised longitudinal tubercle ; 

 three other small and rather indistinct tubercles are seen within the 

 elytral constriction at the sides ; the base of the femora is obscure 

 fulvous ; the rest and the underside blackish ; the suture is dentate 

 through its entire length. 



A single specimen. 



C. palUfrons resembles in general structure C. spilota, Balv, but is 

 only half the size ; the thorax is more finely punctured and devoid 

 of raised lines and tubercles, while those of the elytra are also much 

 less distinctly raised and the interstices much more finely punctured. 



EXEMA CEYLONENSIS, Sp. UOV. 



Black ; head strigose ; thorax strongly raised behind, with six 

 elevated longitudinal ridges ; elytra strongly punctured, each elytron 

 with an elevated ridge and about nine or ten tubercles ; pygidium 

 with three longitudinal carinations. 



Length 1 line. 



Head closely covered with longitudinal strigse ; antennse black, 

 the sixth and following joints transverse. Thorax strongly raised 

 into a pointed hump, rather closely and distinctly punctured ; each 

 side with three longitudinal ridges, the middle pair running nearly 

 parallel and not extending quite to the anterior margin, the second 

 ridge strongly sinuate, the third the shortest and only extending to 

 the middle of the thorax ; there are a few short and obsolete ele- 

 vations placed between the above-named ridges, connecting the 

 latter here and there with each other. Elytra more deeply punc- 

 tured than the thorax ; each elytron with the following tubercles : 

 one at the middle of the base, one at the shoulder, and another near 

 the scutellum ; two transverse short ridges placed near the suture, 

 one at the middle, the other below the latter and connected by an 

 oblique ridge whicli runs from the basal tubercle to a little distance 

 from the apex ; another, shorter, oblique ridge extends from the 

 shoulder to the middle joining the subsutural one ; a tubercle 

 is placed near the apex close to the lateral margin, the suture is 

 serrate through its entire length ; the underside rugosely punctate. 



This little species, of which only a single specimen is before me, 



