Phytophagous Coleoptera, S^'c. 255 



Omotyphus Ericlisoni. 



Ovata, valde convexa, picea, nitida, siibtus sparse 

 sericea, supra setosa, pedibus anticis quatuor, tibiis pos- 

 ticis antemiisque sordide fulvis, liis ad apicem subincras- 

 satis, articulis 7™° 8^° 9°° nigro-piceis, femoribus .posticis 

 apice tarsisque pallide piceis ; tliorace transverse, rugoso- 

 punctato, disco pone medium transversim depresso, ante 

 medium quadrituberculato ; elytris convexis, infra basin 

 profunde arcuatim, pone medium minus profunde trans- 

 versim excavatis, profunde punctato-striatis, interspatiis 

 convexis. 



Long. 2 lin. 



Hah. — Clianchamayo. 



Head much longer than broad, subcuneiform ; vertex 

 rugose-punctate ; encarpa3 thickened, pyriform, separated 

 by a deep groove ; clypens transversely depressed across 

 its middle, its hinder half obliquely elevated ; antennee 

 about half the length of the body, their five outer joints 

 distinctly thickened ; the 2nd one short, ovate, the 3rd 

 more than twice its length, distinctly longer than either 

 the 4th or 5th, these latter equal. Thorax one-half 

 broader than long ; sides parallel, bisinuate, the anterior 

 and posterior angles thickened, prominent ; disk rugose- 

 punctate, clothed with adpressed piceous hairs, the hinder 

 disk transversely depressed, the anterior disk with four 

 distinct tuberosities placed transversely on its surface, the 

 two lateral smaller than the intermediate ones. Elytra 

 much broader than the thorax, quadrate-ovate, convex, 

 obliquely excavated below the basilar space, transversely 

 excavated (but much less distinctly) below the middle, 

 strongly punctate-striate, the interspaces thickened, sub- 

 costate ; surface clothed with long, suberect piceous hairs. 



Octogonotes limbatus. 



Anguste oblongus, niger, subtus sparse, supra dense 

 sericeo pubesccns ; capite thoi'aceque aureo-sericeis, hoc 

 quam longo fere duplo latiori, lateribus parallelis, ante 

 medium leviter angulatis, piceo-nigro, disco de})lanato, 

 arcuatim excavato ; elytris sat fortiter punctato-striatis, 

 interspatiis rugulosis; nigro-sericeis, limbo laterali late 

 fulvo, hoc limbo nee non linea suturali aureo-sericeis. 



Long. 3 lin. 



Hub. — Clianchamayo. 



