292 CURCULIONIDES. 



the tip, piceous : thorax with a transverse obtusely indented line 

 on the anterior submargin; punctures large separate profound 

 orbicular, minute upon the anterior margin and confluent upon 

 the posterior and lateral margins : middle of the base widely in- 

 dented and with a carinate line in the indentation : elytra pro- 

 foundly striate, striae with large profound transverse punctures. 



Length, base of rostrum to tip of elytra more than three-twen- 

 tieths of an inch. 



A species equally common in Missouri and Pennsylvania, I 

 have observed it to inhabit in considerable numbers under the 

 loose bark of yellow Pine trees in October. 



2. C. platalea. — Thorax impressed behind; rostrum punc- 

 tured ; thorax rather short. 



Inhabits United States. 



Head punctured, a 'little indented transversely between the 

 eyes ; rostrum dilated towards the tip, punctured : antennae pice- 

 ous ; thorax with the punctures not very profound, distant, irre- 

 gular j a basal indentation, with a slight, obtuse carina in the 

 middle of the indentation : rather short, much rounded on the 

 sides ; elytra, striae with large punctures ; tarsi obscure piceous. 



Length nearly one-fourth of an inch. 



The thorax is proportionally shorter than that of the corticola. 

 the punctures are less deeply impressed, and the rostrum is not 

 obviously indented longitudinally. It varies in having the tibiae 

 obscure piceous. 



DRYOPHTHORUS Schupp. 

 D. corticalis. — Thorax with dilated punctures ; elytra with 

 dilated striae. 



This is so much like D. lymexylon Fabr. that it is considered 

 the same : but on comparing with my European specimens, I find 

 it smaller and the punctures of the head are obsolete, whereas in 

 the European specimens they are large and obvious. This is the 

 Curculio corticalis Payk. of Melsh. Catalogue, [25] 



