CURCULIONIDES. 291 



Body black, punctured : rostrum arquated, compressed, pice- 

 ous towards the base; with, an impressed, punctured line; an- 

 tennas piceous : thorax with dense punctures, destitute of obvi- 

 ous elevations: scutel concave, polished: elytra with series oi 

 punctures rather wider or as wide as the interstitial lines, which 

 also have a series of small punctures ; tip dull piceous : fret 

 rufous, with black incisures. 



Length about three-tenths of an inch. 



In general shape it resembles R. immunis nob., but the thorax 

 has not very obvious elevations and is more generally punctured; 

 the punctures of the elytral series are larger and the interstitial 

 lines have a series of small punctures ; the feet also are rufous. 



10. R. inaequalis. — Thorax with numerous discoidal punc- 

 tures ; elytra with the punctures in the series remote. 



Inhabits United States. 



Body black, more or less covered with a dirty brown pigment 

 or crust, punctured : rostrum moderate, compressed, arquated, 

 with an impressed line at base; thorax with discoidal punctures 

 and from one to three slight elevations : elytra with obvious 

 striae, in which are remote punctures ; interstitial lines with ob- 

 long, longitudinal punctures; sutural line with a series of small 

 close set punctures. 



Length nearly one-fourth of an inch. 



The elytral punctures are remote in the striaj, and those of the 

 interstitial lines are much elongated. 



11. R. compressirostris nob. (Calandra) Journ. Acad 

 Sc. 1823. Amer. Ent vol. 1, pi. 9. 



Gemar, Coleopt. Sp. Nov, 1824, [24] 



COSSONUS Clairv. 



1. C CORTICOLA. — Black; thorax impressed behind ; rostrum 

 with an indented line between the eyes, and another on the mid- 

 dle of the rostrum. 



Inhabits United States, 



Curculio cortkola Melsh, Catal. 



Body deep black, immaculate, punctured; head, pun< ■'. 

 minute and remote upon the vertex and becoming larger and 

 more dense towards the tip of the rostrum; a profoundly in- 

 dented dilated line between the eyes; rostrum dilated towards 



