DIHAMMATUS. 29 



Plateros chinensis. 

 (Plato VI. fig. 7.) 



Nigro-fuscus, parcc pubescens ; subparallelus ; thorace nitido, 

 lateribus rufo-flavis ; elytris sat fortiter punctato-striatis, interstitiis 

 angustissimis, fere a;qualibus, postice obliteratis. $ , § . 



Long. 3 tin. 



llnh. Hong Kong (J. G. Boivring, Esq.). 



Very close to P. fuscipennis, but relatively a little broader, and 

 the antennae are shorter and rather stouter. The thorax is broad, a 

 little narrowed in front, fuscous ;*the disk is moderately impressed 

 on each side at the base. The elytra are rather roughly and very 

 closely punctate-striate, the intervals very narrow, interrupted by 

 the punctuation towards the apex. The anterior coxa) are pale. 



The female has the antennae a trifle shorter and stouter than the 

 male. 



DIHAMMATUS. 



Antennae slender, scarcely dentate, the second and third joints 

 nearly equal. Thorax simple, witli a short longitudinal mesial 

 channel behind. Elytra with ten punctured striae ; the interstices 

 very narrow, nearly equal, costiform. 



Differs from the preceding genus in having the third joint of the 

 antennae small. 



Dihammatus cribripennis. 



(Plate VII. fig. 6.) 



Pallide fuscus ; capite, thorace elytrorumque humeris sordide 

 flavis ; elytris crebre punctato-striatis. <3 . Long. 2 lin. 



Hub. Java (J. C. Boivrin>/, Esq.). 



Parallel, depressed. Antennae rather long and slender, the third 

 joint scarcely longer than the second. Thorax rather deeply 

 impressed on each side of the disk, with a longitudinal mesial 

 channel extending from the base to a little before the middle ; the 

 anterior margin obscurely punctured. Elytra closely and distinctly 

 punctate-striate ; the interstices very narrow, subcostiform, nearly 

 equal, the alternate ones a little more distinct at the base. Coxae 

 and base of the femora obscure yellow. 



Dihammatus pallens. 



(Plato VII. fig. 7.) 



Parallelus, depressus, sordide flavus, pubescens; antennis, elytris 

 alulomineque fuscescentibus ; elytris crebre subtilius punctato- 

 striatis, interstitiis angustissimis. Long. 2 lin. 



/!"/,. Sarawak ( Wallace). 



