410 MARTIN .lACOHY 



From any other species of Tricliona with whicli I am acquainted, 

 the present one may be known by tlie sulcate , not punctate 

 elytra and the nearly impunctate thorax , these differences and 

 the unspotted colour distinguishes the species also from the 

 other Sumatran insects belonging to this genus. I received two 

 specimens from Dr. Kraatz in Berlin. 



40. Tricliona nigrofasciata, n. sp. — Tesfciceous. antennae (tlie 

 basal joints excepted) Ijlack , thorax finely and remotely punc- 

 tured , elytra with basal depression , strongly punctate-striate 

 anteriorly only, tlie lateral margin and a transverse semicircular 

 band at the Imse, including a small spot, black. 



Var. Entirely testaceous. 



Length 2 lines. 



Head impunctate, very narrowly sulcate above the eyes, the 

 latter very large, their diameter larger than the dividing space, 

 clypeus scarcely punctured, its anterior edge nearly straight, 

 antennae slender, black, the Imsal joints more or less pale, the 

 third joint distinctly longer than the fourth, terminal joints 

 slightly thickened, elongate; thorax twice as broad as long, the 

 sides rather strongly rounded, slightl;y narrowed in front, the 

 anterior angles dentiform, the surface dellexed anteriorly, very 

 remotely, sparingly and 'finely punctured, basal margin nearly 

 straight, scutellum broad, elytra convex, parallel, with a distinct 

 transverse de})ression i)elo\v the base, strongly punctate-striate 

 within the depression, the rest of the disc very finely punctured, 

 the punctures distantly placed, the lateral margin ( niore broadly 

 below the shoulders) the suture to a less extent and a ring- 

 sha})ed band at the base including a round spot, black ; anterior 

 femora dilated into a strong tooth. 



llab. Padang, Siboga. 



From the other two known Sumatra sj)ecies described l)y 

 Lefèvre, the present one is at once distinguished Ijy tlie s])aringly 

 and finely punctured thorax and the design of the elytral band; 

 the variety is entirely without markings but agrees in sculj)- 

 turing etc. 



41. Tricliona nigro-maculata, Lefèv. — Many specimens from 



