C n I 



lajge & close set, concealed by the hairs, with a longitudinal raised line : t/d^hs 

 beneath near the tip emarginate. 



Length less than half an inch. 



Inhabits the North West Territory. 



2. H. imbricatus, Nob. (Liparus) Journ. Acad. Nat. Sc. 



LISTRODERES, Schoenh. 



1. L. caudatus Nob. (Rynchaenus) Journ. Acad. Nat. Sc. 



2. L. squamiger. Body covered with minute brownish cinereous scales : ros- 

 trum with a carinate line ; thorax with scattered punctures ; not flattened ; 

 scutel yellowish or whitish, elytra with punctured striae towards the tip conceal- 

 ed by the scales ; the united tip obtusely rounded ; humerus obtuse. 



Length from two-fifths to half an inch. 

 Inhabits Arkansaw. 



Much like caudatus Nob. but in that species the humeral line is carinate & 

 acute. 



3. L. porcellus, Body blackish rufous, with numerous, short, robust, upright 

 hairs ; rostrum broad and rather short with somewhat elevated lines & a wide 

 indentation at base : </iorojr subcylindric .- elytra with wide impressed striae, in 

 which are transverse punctures ; a paler submarginal line eacli side & terminal 

 spot ; feel dull rufous. 



Inhab. U. S. 



Length over one-tenth of an inch. 



4. L. spar sus, Body AuW drab color; with minute scales, the surface with 

 small dense, shallow indentations; numerous short robust upright hairs; rostrum, 

 robust short; antennae rufous: thorax somewhat rounded ; scutel small trans- 

 verse: elytra with rather longer hairs than the thorax ; with slender punctured 

 striae, punctures obsolete towards the tip ; humerus a little prominent some- 

 what carinate .- feet unarmed. 



Inhab. J\lissouri. 



Length over three-twentieths of an inch. 



d.h.Uneatulus, Body with a dirty yellowish cinereous covering, & with 

 short, robust hairs .• ros/ruj/i with two longitudinal grooves ; antennae ruToJis ; 

 thorax rounded, with a transverse indented anterior line & a longitudinal ob- 

 solete, impressed one : the whole surface has a granulated appearance ; elytra 

 with the striae & punctures concealed by the covering, tlie alternate interstitial 

 lines prominent & distinct. 



Length over one-fifth of an inch. 



Very distinct from the preceding species & may be distinguished from them 

 by its mucli smaller size. 



BARYNOTUS, Germ. 



1. B. rigidus. Body dirty brown, with remote, robust, upright hairs ; rustrmn 

 short, thick, transversely indented between the eyes; thorax a little indented 

 longitudinally ; transverse, as broad in the middle as tlie base of the elytra ; 

 elytra with the striae obtuse, slightly impressed, punctured ; interstitial'lines 

 having the hairs distant & regular. 



Inhab. (-onnecticut. 



Length less than one-fifth of an inch. 



