new genus and species of HalticinoB. 583 



the rest black ; second joint thickened, longer than the 

 third. Thorax twice as broad as long ; sides converging 

 and distinctly rounded from base to apex; anterior angles 

 obliquely truncate, thickened; basal margin bisinuate on 

 either side, medial lobe slightly produced, rounded ; 

 upper surface smooth and shining, distinctly but not closely 

 punctured. Elytra more strongly punctured than the 

 thorax, the punctures arranged in irregular longitudinal 

 rows; interspaces smooth, impunctate. 



Genus Thyamis, Stephens. 

 Thyamis binotata. 



Ovata, convexa, pallide flavo-fulva, nitida, oculis ni- 

 gris; thorace transverso, mmute et remote punctulato; 

 elytris sub-lente distincte punctulatis, utrisque pone me- 

 dium macula subrotundata nigra notatis; femoribus tibiis- 

 que posticis piceo-tinctis. 



Long. -^ lin. 



Hab. — Shanghai; Mr. Lewis. 



EncarpEe contiguous, transverse, subti'igonate ; carina 

 obsolete; antennse filiform, basal joints thickened, second 

 moderately thickened, nearly as long as the first; third, 

 fourth and fifth each equal in length to the second. 

 Thorax nearly twice as broad as long ; sides broadly 

 margined, diverging from the base to the middle,- thence 

 straight and parallel to the apex, anterior angles obliquely 

 truncate, slightly thickened; above transversely convex, 

 very faintly impressed transversely at the base, the sulca- 

 tion being only visible in certain lights; very minutely 

 and distinctly punctured. Scutellum bi'oadly semi-ovate. 

 Elytra much broader than the thorax, broadly ovate, con- 

 vex, under a lens distinctly punctulate. 



Thyamis Godmani. 



Elongato-ovata, convexa, nigra, nitida, antennis basi 

 pedibusque obscure piceo-fulvis ; thorace ten niter sub- 

 remote punctulato ; elytris distincte punctidatis. 



Long. 1 lin. 



Hab. — Shanghai; collected by Mr. Godman. 



Encarpa3 obsolete ; carina broad, linear, slightly raised ; 

 vertex smooth, impunctate; four loAver joints of antennse 

 piceo-fulvous, fifth and sixth dark piceous, the rest black. 

 Thorax about one-third broader than long ; sides mar- 



