56 MARTIN JACOBY 



Head impunctate, obliquely transversely grooved between the 

 eyes; large; labrum prominent, fulvous; antennae less than 

 half the length of the body , the 7 terminal joints gradually wi- 

 dened, black, the others fulvous; tliorax transversely convex, 

 much widened at the middle ; sides rounded , the anterior angles 

 obsolete and also rounded; posterior margin oblique, strongly 

 produced at the middle in a rounded lobe , sinuate at each side 

 in front of the latter; surface not very closely and irregularly 

 covered with fine punctures; elytra very convex and rounded, 

 rather strongly and irregularly punctate-striate , the rows not 

 closely placed; posterior femora very strongly incrassate, their 

 tibiae not chanelled, furnished with a small spine; first posterior 

 tarsal joint scarcely as long as the Z following together, second 

 joint very sliort, 3.*^ broadly dilated; claws appendiculate; elytral 

 epipleurae rather broad , concave ; presternum broad , nearly 

 squareshaped , anterior coxal cavities open. 



Sumatra, Mt. Singafang (0. Beccari). 



Larger than S. Beccarii, the thorax of different shape, and 

 the elytra more strongly and much more distantly punctured ; 

 the antennae are also shorter and their terminal joints more 

 dilated, thus approaching the genus Argopistes. 



51. Arg-opistes insularis, n. sp. 



Ovate, convex piceous below ; antennae black , 3 lower joints 

 testaceous; head, thorax and legs fulvous; elytra black, punc- 

 tate-striate, a band across the middle, and the extreme apex, 

 fulvous. 



Var. elytra with a fulvous spot at the middle. 



Length 1 line. 



Head deeply transversely grooved between the eyes; frontal 

 tubercles ovate, strongly raised; labrum and palpi fulvous; 

 antennae short , scarcely extendiiig beyond the base of the tho- 

 rax, terminal joints thickened; the 3 or 1 basal ones, testaceous, 

 the rest black ; thorax more than twice as broad as long , ful- 

 vous, the sides slightly rounded; anterior angles thickened and 



