218 [March, 1S45. 



filiform, rufous, with the second joint longer than the third, which is as long 

 as the fourth but hardly as broad, terminal joint subulate : thorax convex, 

 longer than wide, wider at base than at apex, where it is not much wider than 

 the head, with the sides rectilinear from the hind angles to much before the 

 middle, thence to the apex suddenly rounded ; deeply, densely and rather 

 equally punctulate ; anterior edgepiceous; hind angles subacute, slightly ex- 

 curved, carinate, carinse parallel to the outer edge: scutel densely punctulate, 

 ashy-pubescent: elytra punctate-striate, striae fine, punctures longer than wide, 

 approximate, interstices flat, obsoletely and very minutely punctured, and finely 

 transversely corrugated ; sides gradually narrowed from behind the middle to 

 the apex, which is acutely rounded : feet and lateral ventral margins, rufous; 

 tarsi simple; posterior femoral plates almost equal in breadth. This species is 

 strictly not referable to this subgenus, and is closely allied to Elater erythropus, 

 Say, and Melsh. Catal. 



Dolopius, Eschsch, 



1 . D. isabellinus. Brownish-yellow ; thorax cylindric ; antennas fuscous 

 4§ 1. long ; 11 1. wide. Pennsylvania and Virginia. 



Elongate, subcylindric, dull honey-yellow, finely pubescent ; head slightly 

 convex, strongly punctured, with a short, longitudinal, linear impression on 

 the front ; clypeus truncate and slightly margined at tip ; antennae short, 

 filiform, hardly serrate, brownish, with the second joint longer than the 

 third ; fourth joint rather wider than the fifth ; eyes and mouth black : 

 thorax oblong, cylindric, very slightly narrowed before the posterior angles, 

 which are subacute, slightly excurved and finely carinate ; anterior margin 

 contracted ; surface densely arid profoundly punctulate ; dorsal line obvious 

 only behind the middle : scutel very finely and densely punctured ; elytra 

 subcylindric, deeper shaded than the thorax, and like it pubescent or very 

 shortly hirsute ; punctate-striate, striae fine, punctures oblong, obscure, in- 

 terstices flatfish, numerously punctulate and transversely wrinkled : feet and 

 beneath colored as above ; tarsi simple ; posterior basal plates sublanceolate. 



2. D. oblongicollis. Reddish-brown ; thorax oblong ; antennas and feet 

 rufous, 4-4§ 1. long ; 1 1. wide. Pennsylvania. 



Elater oblongicolUs, Melsh. Catal. 

 «< sericeus, " " 



Head dusky, slightly convex, densely punctulate ; clypeus margined and 

 truncate at apex : antenna: longer than the thorax, rufous, pilose, hairs 

 equal, not applicate ; second and third joints small, obconic, second longer 

 than the third, fourth longer and wider than the fifth : thorax dull reddish- 

 brown, longer than wide, cylindric, convex, greatest convexity, as in the 

 preceding species, before the middle ; densely or confertly punctulate, yel- 

 lowish sericeous ; anterior margin slightly contracted, obsoletely rufous ; 

 posterior angles excurved, acute, slightly carinate: elytra chestnut-red, 

 finely and shortly hirsute, punctate-striate, striae fine, punctures oblong, 

 interstices minutely and distantly punctured and transversely corrugated, 



