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 punctato, canaliculate, 
hoc ad basin impresso, ultra medium concavo, thorace latitudine plus duplo breviore, lateribus 
parum rotundatis, confertim sat grosse punctato ; elytris 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. 
Otiorhynchus 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 nasOf alatus niger (cinereo? squamosus), capite rostroque confertim punctatis, hoccarinato, 
capite duplo longiore ad apicem valde dilatato ; thorace latitudine haud 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- 
