OF PniLADELPniA. 131 



tip; thorax angles acute; punctures minute, subequidistant: scu- 

 tel oblong-triangular, acute : elytra with nine punctured striae; 

 exterior stria abbreviated at the middle ; punctures equal, equi- 

 distant; tip and posterior outer margin pale reddish-yellow: feet 

 piceous, blackish at base ; anterior tibia with two robust spines 

 at tip, and spinosc cilae on the exterior edge. 



Length three-fortieths of an inch. 



Found at Engineer Cantonment. 



[Belongs to Cercyon. — Leg.] 



COPRIS Geoff. Latr. 



1. C. ANAC3LYPTICUS. — Thorax tritubcrculatc ; head horned. 



Inhabits the United States. 



Scarab, (inoi/h/jiticun Knoch in Melsh. Catiil. 



IJody black, punctured : clypeus emarginate at tip ; horn as 

 long as the clypeus, slightly recurved, simple; punctures con- 

 fluent : thorax three tuberculate, densely punctured on every 

 part; tubercles placed in a transverse series, the intermediate 

 one transverse and profoundly emarginate ; a longitudinal obso- 

 lete impressed line above ; a transverse indented cavity or punc- 

 ture each side, beneath which is an oblique elevated line con- 

 fluent anteriorly with the edge of the thorax ; anterior angles 

 emarginate: elytra with profound, [205] indented, crenate, di- 

 lated striae ; interstitial spaces, punctured. 



Length seven-twentieths of an inch. 



This insect appears to be a general inhabitant of the United 

 States ; it is not unfrequent on the Upper Missouri and on the 

 Arkansa. 



It is closely allied to Copris lunan'x and nnarglnatuSj but may 

 be distinguished from either by the punctured interstitial spaces 

 of the elytra. It seems also related to C. Amnion, but Olivier 

 attributes to that insect the size only of Shwdcndronci/liudricum 

 which is certainly less than half the magnitude of our insect. It 

 also resembles the Janua of Panzer, but is much larjrer. 



The thoracic tubercles of the female are almost obsolete, and 

 the horn of the head is transverse and much shorter than the 

 head, but the other external characters are the same as those of 

 the male. 

 1823.] 



