Longicornia Malayana. 241 



Othelais. 

 Characteres ut in Cereopsio, sed antennce fimbn'atse, scapo 

 cylindrico, baud cicatricoso ; prothorax dente lateiali retrorso, 

 dorso regulari ; pro- et meso-sterna elevata, hoc antice 

 transversim dilatato. 

 The type of this genus was originally placed by me in Cereop- 

 sms, but the above characters preclude its being retained in that 

 group as now constituted. The two species described below are 

 very distinct, but O. virescens, in form and colour, has a marked 

 resemblance to Diallus subtinctus. 



Othelais histrio. (PI. XII. fig. 3.) 

 Cereopsius histrio, Pascoe, Trans. Ent. Soc. ser. 2, v. 43. 



O. nigra, niveo-notata; antennis niveo-annulatis; pedibus fusco- 

 ferrugineis, subtiliter cinereo-pubescentibus. 



Hah. — Aru. 



Black, finely pubescent, with snowy-white spots and stripes; 

 head and prothorax impunctate, black, front and cheeks white ; 

 the prothorax with three white stripes on the disk, the lateral 

 stripe above and distant from the spine, and one on each side 

 beneath it, anteriorly on the disk a transversely impressed line ; 

 scutellum narrowly triangular, nearly entirely black ; elytra 

 elevated at the base, slightly curved, irregularly punctured, with 

 numerous very distinct snowy-white spots, two considerably 

 larger than the rest on each side— one before, the other behind 

 the middle— the apex of each elytron deeply emarginate, and 

 terminated at each angle by a slender spine, the outermost being 

 continuous with a short keeled line ; body beneath black, shining, 

 the sides with whitish pubescent patches ; legs with a reddish tin°, 

 thinly covered with an ashy pubescence ; antennae rather longer 

 than the body, dark ferruginous, the third and fourth joints at the 

 base, and nearly the whole of the sixth, white. 



Length 4 lines. 



Othelais virescens. 

 O. pallida brunnea, sordide albo-notata ; antennis pedibusque 



pallide virescentibus, nitidis. 

 Sal), — Saylee, Dorey. 



Light brown, with a greenish tint, and a very thin pubescence, 

 but in parts coarser and denser, forming dull whitish stripes and 



VOL. III. THIRD SERIES, PART III. — SEPT. 1866. r 



