56 U. S. P. R. R. EXP. AND SURVEYS ZOOLOGY 47TH PARALLEL. 



Oregon, Dr. Townsend and Mr. Gibbs. The specimen collected by Dr. Townsend was given 

 to me by Mr. Willcox, as Barynotus torpidus of the Berlin Museum ; but the species belongs as 

 little to Barynotus as to Hylobius. The prothorax is lobed behind the eyes ; the rostrum is 

 longer than the head, with the antennal groove very short and slightly flexed. The antennae 

 are slender, with the first and second joints of the funiculus elongate, the others rounded, short 

 and equal. 



PTOCHUS Schonherr. 



P. saccatus, ater cinereo-pubescens, capite cum rostro confertissime punctate, canaliculate, 

 hoc ad basin impresso, ultra medium concavo, thorace latitudine plus duplo breviore, lateribus 

 parum rotundatis, confertim sat grosse punctato ; elytrls globosis, punctis quadratis striatis, in- 

 terstitiis punctulatis. Long. 2. 



Oregon, Dr. Cooper. The scales and most of the pubescence have been removed. 



P. globiventris, ater, supra parce viridi-argenteo squamosus, capite thoraceque cinereo-pubes- 

 centibus, illo cum rostro profunde punctato, fronte fovea oblonga impresso, rostro piano ; thorace 

 latitudine breviore, lateribus rotundatis, grosse sat dense punctato, elytris globosis punctato- 

 striatis, interstitiis obsolete punctulatis. Long. 2. 



San Francisco, one specimen. The antennal grooves are very short, and on the upper surface 

 of the rostrum, which at tip is hardly emarginate. The body beneath is thinly clothed with 

 cinereous hair, and greenish white scales. The antennal club is longer than in the preceding 

 species. 



OTIORIIYNCHUS Germ. 



0. segnis, elongatus niger, squamulis cinereis fuscisque vestitus, capite rostroque confertim 

 punctatis, hoc capite paulo longiore, vage longitudinaliter impresso, ad basin transversim im 

 presso, thorace latitudine vix longiore, ovali lateribus rotundato, densissime punctato, vix obso 

 lete canaliculate, elytris elongato-ovalibus, postice valde declivibus, thorace parum latioribus, 

 punctis rotundatis operculatis striatis ; tibiis anticis valde curvatis, intus parce serratis. 

 Long. - 4. 



Sacramento, Mr. Wittick ; Prairie Paso, Dr. Cooper. 



OJ naso, alatus niger (cinereo? squamosus), capite rostroque confertim punctatis, hoccarinato, 

 capite duplo longiore ad apicem valde dilatato ; thorace latitudine baud breviore, antrorsum 

 angustato, lateribus paulo rotundatis, confertissime punctato, elytris ad basin thorace sesque 

 latioribus, humeris obtusis distinctis, punctato-striatis, interstitiis punctulatis ; tibiis anticis 

 curvatis, intus subserratis. Long. - 36. 



Oregon, Col. McCall. Certainly not Otiorhynchus. The thorax is not lobed behind the 

 eyes ; the ungues are distant and free, and the antennae are as in Otiorhynchus. The form of 

 body is somewhat as in Phyllobius or Brachystylus, and still more as in Platyomus ; the anten 

 nal grooves are slightly deflexed, but become obsolete posteriorly ; the divergence of the apical 

 lobes of the rostrum is as great as in Otiorhynchus. 



TYLODERES Schonherr. 



T. gemmatus, ater, breviter parce setulosus, dense sordide cinereo-squamosus, rostro carinato, 

 capite plus duplo longiore, ad apicem latiore ; thorace latitudine sublongiore, lateribus rotunda 

 tis, antrorsum paulo angustiore, tuberculis nitidis obsito, profunde canaliculate, canali lateri- 



