AMERICAN PHILOSOPHICAL SOCIETY. 621 



t t t t Claws pectinated. 

 [The species of this division, except 69 and 70, belong to Cra- 

 tonyclius. — Leg.] 



65. E. coRTiciNus S. (Journ, Acad, Nat Sc, iii., p. 174.)— 

 The second and third joints of the antennae are rounded, equal. 

 The basal margin of the thorax has a fissure each side, near the 

 lateral spines. It varies in size. The smallest one that I have 

 seen is seven-twentieths of an inch. Can it be the dispar of Herbst? 



66. E. CINEREUS Weber. — Second joint of the antennae about 

 half the length of the third : the thorax is more rounded at the 

 sides than the preceding. It varies considerably in size. The 

 basal margin of the thorax has a fissure each side. 



Length from three-tenths to seven-tenths of an inch. 



The former size is rare ; but the more usual length is about 

 half an inch. 



This is the vulgaris and pilosus of Melsheimer's Catalogue. 

 It resembles the hrunnipes Ziegler ; but the thoracic punctures 

 are rather larger, and less crowded, the thoracic spines are longer 

 and more acute, and the second joint of the antennae is a little 

 longer in proportion to the third.* [184] 



*[ Among Mr. Say's manuscripts is a description of the cinereus, under 

 tke rejected name of Jissilis, which, as it contains the characters of this 

 species somewhat in detail, it may be proper to insert here.] 



E. Jissilis. — Brown ; base of the thorax with a fissure near the pos- 

 terior angles. 



Inhabits the United States. 



Body chestnut-brown, punctured, somewhat sericeous with short 

 hairs : head convex : clypeus rounded at tip : antennae rufous ; second 

 joint half as long aa the third; ultimate joint not abruptly contracted near 

 the tip: thorax with the lateral edge regularly arcuated, not [184] con- 

 tracted near the spines ; spines rather short and somewhat obtuse, sub- 

 bicarinate ; basal margin, near the lateral spines, with a distinct fissure : 

 elytra with punctured stri«, and depressed, minutely punctured inter- 

 stitial lines ; suture somewhat paler : feet dull rufous : tarsi beneath 

 with rather dense hairs : nails pectinated. 



Length over half an inch. 



The thoracic fissures readily distinguish this species. I formerly 

 marked it in my cabinet interr ogatively as the hrevicollis Herbst ; but 

 it can hardly be that species, as no notice_is_taken of the fissures. Can 

 it be the cinereus Weber ? 

 1836.] 



