FllVTOI'llAGA KU(t.\l SUMATRA 499 



sed at the vertex, the latter iinpunctate, clypeus swollen, very 

 broad , occupying the entire lower portion of the face , finely 

 rugose, penultimate joint of tlio palpi rather swollen, antennae 

 two-thirds the length of the body, fulvous, the first joint short 

 and thick, the second one very small, the third greatly enlarged, 

 elongate and depressed , deeply emarginate at its upper edge , 

 the other joints elongate, nearly equal, thorax one half broader 

 than long, the sides constricted at the base, rather suddenly 

 widened near the middle, the disc rather flattened, with two 

 small foveae ; impunctate, fulvous, scutellum broad, elytra de- 

 pressed belovv the base very closely and rather strongly punc- 

 tured , the interstices longitudinally costate throughout , under- 

 side and the legs (the ujiper edge of the femora excepted) black, 

 the first joint of the posterior tarsi as long as the following 

 three joints together, claws appendiculate, anterior coxal cavities 

 closed. 



Hab. Si-Rambé. 



Several species Ijelonging to this genus, first described ])y me 

 as Aeocharù and by Baly as Nacraea, are uow known, the males 

 are much distinguished by the structure of the antennae (used 

 as a generic character of doubtful value and more for conve- 

 nience sake), the prenent insect differs from any of its allies in 

 the costate elytra in both sexes which will at once distinguish 

 it ; the system of coloration in the specimens before me varies 

 greatly, in some, the elytra are black with the anterior portion 

 of the suture and an indistinct l)and within the depression, ful- 

 vous, in others the latter colour predominates, leaving the ])0s- 

 terior half of the elytra Ijlack, or the black is reduced to a small 

 spot below the middle of each elytron. 



16!2. Sermyloides scutellatus, n. sp. — Black, the antennae 

 and legs flavous, head and thorax fulvous, elytra flavous, finely 

 and closely punctured, the suture and the lateral margin at the 

 middle, black, last abdominal segment, flavous. 



Length 3 V2 lines. 



Of convex, elongate shape , the head impunctate , the frontal 

 elevations very narrowly transverse, lower part paler than the 



