260 Mr. G. Lewis on 



Corymbites [Selatosomus) puncticollisy Motsch. 

 Corymbites (Selatosomus) ptmcticollis, Motsch. Bull. Mosc. 1866, p. 167. 



This species is similar to C. ceneus, L., but it is much 

 larger, and the thorax is densely punctulate on the disk in the 

 female and scarcely less so in the male. Some examples are 

 highly metallic, bright green or coppery. 



[lab. Chiuzenji and Sapporo. Taken abundantly in both 

 places. 



Corymbites onerosus^ sp. n. 

 Corymbites tristis, Cand., Horn, Tr, Am. Phil. Soc. x. p. 2^%. 



Infuscatus, subnitidus, fulvo-pubescens ; elytris testaceis, nigro- 

 vittatis, ultra medium subdilatatis ; antenuis nigris vel obscure 

 brunneis. 



L. S 11, $ UmiU. 



Dusky brown, little shining, pubescence fulvou.s; the head 

 little coarsely and somewhat unevenly punctate, angles close 

 to the antennae raised and smooth ; the thorax evenly, thickly, 

 not coarsely punctate, convex on disk, widest in the middle, 

 hind angles carinate, not acute, slightly turned outwards ; 

 the elytra testaceous, sutural interstice blackish, second dark 

 for nearly half the elytral length ; from the humeral angle 

 to one third of the elytra interstices 5 to 7 are darkly marked, 

 the marking extending beyond the middle on the sixth inter- 

 stice, and it then widens out over interstice 5, and on inter- 

 stices 8 and 9 the dark colouring approaches the apex, the 

 strife are scarcely or very feebly punctured. In one specimen 

 the elytral markings join in the middle of the dorsum, not 

 unlike the markings in G. cruciafus, L. The antennaj and 

 legs are dull brown. In an example, which I consider is 

 the male, the antennte are much longer, each joint being one 

 third longer, more lax, and all black, and the lateral rim of 

 the thorax is raised and the hind angles acute, with the disk 

 feebly convex. 



This species is very similar to C. tristis, Cand., but differs 

 in the thoracic canaliculation being absent, punctuation of 

 the thorax less coarse, and the punctuation of the second 

 and third stria is scarcely visible. I have examined 

 Cand^ze's type of C. tristis in the Janson collection ; it 

 is a female, and it appears that the male was unknown at 

 the date of Cand^ze's Monograph. In the Janson collection 

 there are also two cxami)ies of C. oncrosus from Japan, 

 both females, and they are labelled C. tristis, Cand. 



Ilab. Oyama, Tokio, Shimabara, Oyayama, and {£?) 

 Yuyama. 



