380 Mr, J. S. Baly on New Genera 



abdoroine pedibusque nigris ; thorace rugoso, basi trans- 

 versim sulcato^ disco vittis brevibus elevatis tribus^ duabus 

 exterioribus obliquis, instructor elytris apice nigris, 

 utrisque tricostatis, interspatiis triseriatim punctatis. 



Long. 5i lin. 



Hah. — Ceylon. 



Antennas nearly half the length of the body, third 

 joint slender, elongate; head shining, forehead impressed 

 with a deep fovea; eyes and mandibles black. Thorax 

 rather broader at the base than long; sides straight, 

 converging from base to apex, feebly bisinuate, notched 

 at the apex, hinder angles acute ; surface closely rugose, 

 deeply impressed at the base with a transverse groove ; 

 on the middle of the disc are placed three short shining 

 elevated vittas, the two outer ones oblique. Elytra 

 broader than the thorax, slightly dilated posteriorly, the 

 apex regularly rounded ; upper surface flattened along 

 the suture, the apical third entirely black ; each elytron 

 strongly tricostate, the basal margin also thickened ; 

 three inner interspaces, as well as the hinder half of 

 the fourth, each with a treble row of punctures; anterior 

 half of the fourth inters])ace impressed with a double 

 row only. Thorax stained on either side beneath with 

 an oblong black vitta; anterior pair of thighs each with 

 a-n oblong fulvous patch in front. 



Genus CniERiDioNA. 



Corpus oblongum aut subcuneiforme. Caput inter oculos 

 productum, antice angulatum ; antennis dimidio corporis 

 longioribus, robustis, 1 1-articulatis, articulis cylindricis, 

 duobus basalibus brevibus, longitudine fere gequalibus, 

 prime paullo incrassato ; palpis maxillaribus articulo pri- 

 mo minuto, duobus sequentibus brevibus, gequalibus, 

 ultimo casteris longitudine asquali ; inento oblongo, lateri- 

 bus constricto; Zt'gruZdmentidorso inserta, segmento basali 

 obsolete, segmento apicali magno, subquadrato, mento 

 latiori; ^a?p/slabialibus obsoletis. Thorax subcylindricus, 

 anguste marginatus, angulis anticis in dentem productis. 

 Elytra thorace multo latiora, postice paullo ampliata, utra- 

 que apice oblique truncata, sutura conjunctim emarginata, 

 angulis posticis distinctis ; dorso profunde striato-punc- 

 tata, cretis interruptis, hie illic inter se ramulis interdum 

 convexis instructa. Pedes mediocres, mutici. 



