166 DESCRIPTIONS OF AND OBSERVATIONS ON 



This species is subject to vary through all the intermediate grada- 

 tions between smooth elytra and deeply striated elytra ; which is the 

 cause why several species have been made of it. The lateral edge of 

 the thorax is grooved. 



3. E. ahruptus, Nob., Ann. Lye. Nat. Hist. New York. Like mo- 

 rio, but more convex above, more impressed at the junction of the 

 thorax and abdomen ; more densely and minutely punctured ; a little 

 more robust; each joint of the antennae originates much nearer the 

 posterior angle of the preceding joint ; and the lateral edge of the tho- 

 rax is destitute of a groove, of a somewhat different form, and the head 

 is not impressed, but is rounded on the front. 



4. E. attenuatus. Reddish brown; elytra somewhat attenuated, 

 blackish and mucronate behind. — Inhab. U. S. 



Body bright reddish-brown, almost sanguineous, with small close 

 set punctures : head not indented before : antennx, joints not elongated : 

 thorax convex, lateral margin arcuated ; narrowed before ; line from the 

 posterior angle rectilinear, acute, diverging from the lateral edge so as 

 to be as near to the inner edge: region of the seutel rather widely in- 

 dented: elytra with smaller punctures than those of the thorax; with 

 obsolete striae; terminal oblique third black; tip somewhat attenu- 

 ated and mucronate : feet a little darker. — Length four-fifths of an 

 inch. 



A variety occurs of which the elytra are obscure, but still the ter- 

 minal third, and the exterior margin also, are black. In a particular 

 light is a slight sericeous effect. 



5. E. viridipilis, Nob. The thorax in form resembles those of ocu- 

 latus Rudymyops, F. but is proportionally longer. 



The posterior angles are curved considerably downward. It is rare. 



6. E. cylindriformis, Nob. In the description "a prominent edge 

 above the antennae, which disappears before ;" instead of the three last 

 words, read, which is obtusely emarginate. The head, thorax and base 

 of the elytra have rather long, prostrate hairs ; the remainder of the 

 elytra has short hairs. Tarsi simply hairy beneath. 



It may be referred to the genus Campylus, Fischer, but the head is 

 inserted nearly to the eyes in the thorax; and the palpi are hardly 

 filiform. 



