November, IS44.] 135 



Form, size and sculpture as in O. latebrosus, Fabr. Clypeus green, sparsely 

 and profoundly punctured, with a prominent acute tubercle each side before, 

 margin 1 (destroyed) thorax retuse each side in front, with a broad bind central 

 lobe, projecting over the head ; dorsum obsoletely channelled behind ; punctured, 

 and clothed with short rufous hairs; green : elytra faintly striate, the interstices 

 minutely punctured; green, with the base and apex irregularly testaceous: py- 

 gidium punctured, superior half rufo-testaceous : beneath and feet green. Of 

 this species there is only a single specimen in our collection. 



0. latebrosus, Fabr.— hecate, Panz. The % of this species varies much in 

 the length of the thoracic central lobe, being in some specimens only half the 

 common length, and in others it is still less, being represented only by two small 

 tubercles. Fabricius described a $ , and Panzer figured and described a $ ; 

 the name of the latter having the priority ought to be adopted. 



Aphodius, Illig. 



1. A. badipes. Black; feet chestnut-brown; clypeus emarginate. — 3| I. long. 

 Pennsylvania. 



Aphodius oblongus, Say, Journ. Acad. N. S., III. p. 215. 



Scaraboeus , Melsh. Catal. 



Oblong, black, glossy : clypeus emarginate at apex, tuberculate each side of 

 the emargination ; finely and closely punctured, particularly on the margin, 

 which is often piceous ; a transverse arcuated impressed line between the eyes : 

 thorax irregularly and profoundly punctured: elytra with profound punctured 

 strife, «the interstices convex, minutely and remotely punctured ; lateral margins 

 often obsoletely reddish-brown : venter and feet pitchy-castaneous. Distinct from 

 the A. oblongus, Illig. 



A. lutulentus. " Black, somewhat glossy, minutely punctate, elytra obscure- 

 ly striate, tarsi testaceous." Hald. Proceed. Acad. Nat. Sc. Philad. I. 304. 



Var. Elytra and feet dull rufous, with the striae of the former almost obso- 

 lete ; edge of the clypeus piceous. Scarabozus opacipennis, Melsh. MS. 



2. A. pensvalknsis. Black; elytra truncate at apex, dusky testaceous; pos- 

 terior feet rufous. — 4 1. long. Pennsylvania. Rare. 



Scarabozus pensvallensis. Melsh. Catal. 



This is certainly only a mere local variety of A. erraticus, Linn., and may be 

 referred to Mulsant's subgenus Colobopterus, Var. nebulosus. The present na- 

 tive specimen of the species, and the only one ever in our collection, is stated to 

 have been found in Penn's Valley] 



3. A. truncatus. Black; thorax deeply and coarsely punctured; clypeus 

 mutic, emarginate. — 3 I. long. Pennsylvania. 



Scaraboeus caenosus, Melsh. Catal. 



truncatus, « « 



Black, convex : clypeus much and deeply punctured, with the edge piceous, 

 angulated and somewhat strongly emarginate in the middle: thorax profoundly 

 and much punctured on the middle and confluently each side : scutel small, with 

 sparse punctures : elytra crenate-striate, the interstices, flattishand impunctured: 

 venter dark reddish-brown : pectus black : feet pitchy-chestnut-reddish. Readily 

 distinguished from other native species by its strongly punctured thorax. 



16 



