294 CURCULIONIDES. 



suture, and band of three large, unequal spots behind the middle, 



brown. 



Inhabits United States. 



Length less than one-tenth of an inch. [26] 



I adopt the name proposed by Schouherr, in preference to 



that of sanguinipennis, under which I described it. 



BALANINUS Germ. 

 B. CONSTRICTUS nob. {Rhynchsenm) Journ. Acad. Nat. Sc. 

 vol. 3, p. 313. 



[Belongs to Erirlunus. — -Leg.] 



TYCHIUS Germ. Sch. 



1. T. ARATUS. — Body entirely covered with pale olivaceous, 

 dense, elongated or rounded scales : rostrum as long as the head 

 and linear; scales like robust hairs; transversely indented over 

 the insertion of the antennae ; a longitudinal impressed line ; tip 

 naked, rufous : thorax with the hair-like scales converging back- 

 wards to the dorsal line : elytra with indented striae, punctures 

 are not visible ; with densely imbricated, rounded scales : middle 

 of the interstitial lines with a series of prostrate scale-like hairs : 

 thighs unarmed, emarginate. 



Inhabits Missouri. 



Length three-twentieths of an inch. 



Can this be C. penicelhis Herbst ? 



2. T. AMOENUS. — Body dark brownish, with minute scales; 

 rostrum somewhat arquated, as long as the head and thorax, dull 

 rufous : thorax narrowed considerably before ; base not undulated j 

 elytra varied with whitish : feet unarmed, dull rufous : tarsi 

 black. 



Inhabits United States. 

 Length one-tenth of an inch. 



BARIDIUS Sch. 

 1. B. NIGRINUS. — Body black, densely punctured : rostrum 

 arquated, linear ; as long as the head and thorax ; thorax with 

 rather large, dense punctures, dilated and rounded at the scutel ; 

 scutel as wide as long, rounded behind : elytra with impressed, 

 narrow, punctured striae, and much broader flat interstitial lines, 

 on which are regular, dilated, transverse punctures. 



