140 ACADEMY OF NATURAL SCIENCES 



fore ; and the slightly elevated, acute or capillary, longitudinal^ 

 interstitial lines distinguish it from other species. 



2. T. SCUTELLARTS. — Thorax inequal, posterior [239] angles 

 rounded ; elytra with elevated polished and impressed lines. 



Inhabits Upper Platte. 



Body black, the depressions dusky cinereous : clypeus punc- 

 tured, and with two distinct rounded tubercles ; anterior tip an- 

 gulated ; edge reflected ; thorax very unequal, punctured ; lateral 

 edge entire ; posterior angles ver}^ obtusely rounded : scutel an- 

 gularly contracted in the middle, acute at tip : elytra with some- 

 what capillary impressed stria3, and transverse irregular im- 

 pressed lines, dividing the surface into irregular longitudinally- 

 quadrate, equally elevated, polished spaces } a few remote punc- 

 tures : feet profoundly punctured ; anterior tibia with a very ob- 

 tuse crenation on the exterior edge. 



Length thirteen-twentieths of an inch. 



This I believe to be our largest species ; like its kindred, it 

 feeds upon decomposing animal bodies, and is an inhabitant of 

 the superior portion of the extensive region through which the 

 rivers Platte and Arkansa flow. It may be distinguished from 

 its neighboring large species, by the entire lateral thoracic edge, 

 and by the equally elevated polished spaces of the elytra. 



[Belongs to Omorgus Er. ; which is not received as a distinct 

 genus by many entomologists. — Leg.] 



CETONIA Fab. 



C. BARBATA. — Hairy, scutellate ; elytra glabrous, pale reddish- 

 yellow, spotted with black. [ 240 ] 

 Inhabits the United States. 

 a la^ims Fab. | ^^ ^^^^^ ^^^^^^ 

 tonkpea Herbst. 1 



Body with-long yellowish-cinereous hair ; clypeus entire, con- 

 cealed by the hair ; margin reflected : thorax covered with hair, 

 beneath which it is cupreous, varied with blackish ; anterior and 

 posterior margin reddish-yellow, the latter emarginate for the re- 

 ception of the scutel : scutel reddish-yellow varied with black, 

 oblong-triangular, acute : elytra reddish-yellow, with numerous, 

 irregular, black-brown points, and a few obsolete, remote, short 



[Vol. III. 



