314 CLAVICORNIA. [Oryptophdgus. 



2. Upper surface moderately strongly punctured ; thorax with the callose pro- 



minences on disc small, but usually distinct ; size large ; elytra often darker 

 than thorax. 



Section II. C. populi, 



3. Upper surface more or less finely punctured} thorax with the callose promi- 



nences on disc more or less obsolete. 



A. Thorax with a distinct basal fold before scutellnm, the transverse impression 



being deep ; elytra without outstanding setae. 



Section III. C. saginatus, scanicus, ladius, umbratus 



B. Thorax with the basal fold before scutellum absent or obsolete, the trans- 



verse impression not being deep. 



a. Elytra not setose in rows. 



Section IV. C. validus, dentatus, cylindrus, distinguendus, 

 acutangulus, fumatus. 



b. Elytra setose in rows. 



Section V. G. cellaris, affinis. 



ii. Antennae with the first joint of club much narrower than the succeeding 

 joints. 



Section VI. C. pubescens. 



II. Thorax with the sides almost even, with a blunt lateral tooth on anterior third, 

 anterior angles scarcely callose. 



Section VII. C. bicolor. 



SECTION I. 



The six species belonging to this section are distinguished by their 

 strong punctuation and the distinct callose prominences on thorax ; in 

 some of them the upper surface is very distinctly setose ; in the males the 

 anterior tarsi are usually more or less dilated. 



I. Anterior tibiae produced externally in a distinct tooth ; 



upper surface strongly setose C. ITCOPEEDI, Herbst. 



II. Anterior tibiae not produced in a tooth externally. 

 i. Anterior angles of thorax callose, but not produced 

 in a tooth, margins rather broad j upper surface 

 strongly setose. 



1. Size smaller; punctuation of elytra almost in 



rows ; lateral tooth of thorax distinct . . . . C. SETULOSTTS, Stvrm. 



2. Size larger j punctuation of elytra confused ; 



lateral tooth of thorax scarcely visible . . . . C. SCHMIDTII, Sturm. 

 ii. Anterior angles of thorax produced in a more or less 

 distinct tooth, margins fine ; upper surface not so 

 strongly setose. 



