228 DESCRIPTIONS OP NEW SPECIES. 



rent form of the pro thorax, which is less convex, less rounded on 

 the sides and less punctured, by the finer pubescence, and by the 

 elytra being less protuberant at the base, with a less deep intra- 

 humeral impression. 



553. L,. gnatlioicles. Testacea, parce subtiliter pubescens, thoraco 

 confertim punctate, latitudine sesqui longiore antice posticeque sub- 

 coustricto, apice angustiore, lateribus siuuatis, antice medium obtuse 

 tuberculatis ; elytris parallelis, apice rotundatis, gutta parva sublaterali 

 picea versum medium ornatis, grosse punctatis, punctis postice sensim 

 minoribus ; antennis ( $ ) validis, articulo 4to 3io breviore, 5to illis con- 

 junctis aequali. Long. 9 mm. 



One male ; Oregon, Mr. Edwards. The head is square be- 

 hind with rounded angles, the genae moderately short, and the 

 palpi dilated as in L. scripta, and the others of that group (C-b) ; 

 but it is remarkably different by the antennae which are stout, with 

 the 3d and 4th joints much shorter, and united only equal to the 

 5th. The sculpture of the elytra is very coarse, and the general 

 appearance recalls Gnathium of the Meloidae. 



554. Li. aspera. Nigra, opaca, capita thoraceque dense punctatis, 

 hoc latitudine longiore, antrorsurn sensim angustato, lateribus bisinuato, 

 et vage transversim impresso, dorso late vage canaliculate, et utrinque 

 late foveato ; elytris basi thorace plus sesqui latioribus, postice parum 

 angustatis, apice subtruncatis, dorso planis, granulis parvis minus dense 

 asperatis. Long. 9 13 mm. 



Vancouver Island; Messrs. Matthews. Entirely similar in form 

 and appearance to L. mutabilis, but the thoracic impressions, 

 though- broad and shallow, are well defined ; the proportion of the 

 antenual joints is about the same, the 3d and 4th united being a 

 little longer than the 5th; the outer joints are, however, not 

 carinated beneath, and the llth joint is not appendiculate. The 

 antennae are longer than the body in the $ , and shorter in the 

 9 . The body beneath is pruinose, with very short whitish pubes- 

 cence. 



555. L,. spliria. Nigra, cinereo-pubescens, capite tboraceque confer- 

 tim subtiliter punctatis, boc antice posticeque constricto, convexo, sub- 

 canaliculato, lateribus postice parallelis, antice obliquis, angulis posti- 

 cis subprominulis ; elytris parallelis, apice rotundatis, sat fortiter punc- 

 tatis. Long. 11 mm. 



