154 [November, 1844. 



Elongate, light chestnut, with the thorax darker: head as in the preced- 

 ing : antennae as in the preceding: thorax differs from that of the preceding 

 in being almost glabrous, in the sides being more distinctly undulated, more 

 contracted before the hind angles, and in having these more strongly ex- 

 curved : scutel as in the preceding : elytra as in the preceding, but almost 

 glabrous: beneath and feet somewhat lighter tinted than above. This may, 

 perhaps, be only a variety of the preceding. 



3. A. melarwphthalmus. Fusco-testaceous ; thorax widest before the mid- 

 dle ; eyes black. — %\ I. long, 3 1. wide. Pennsylvania. 



Elater melanophthalmus, Melsh. Catal. 



Brownish-red, very finely yellowish pubescent, almost glabrous : head 

 coarsely and rugosely punctured, with the front impressed : clypeus at tip 

 obtusely rounded, with the edge slightly raised, black, and deflexed in the 

 middle ; antennae not much longer than the thorax, rufous, pubescent, with 

 the second joint almost half the length of the third ; fourth and following 

 joints compressed, and broader than the third ; eyes black : thorax rather 

 longer than wide, decidedly widest before the middle, contracted at the 

 posterior angles, moderately convex, much and profoundly punctured ; a 

 faint entire dorsal line ; an obtuse indentation each side near the middle of 

 the lateral margins; sides rounded, slightly excurved at the hind angles, 

 which are shortish and feebly carinate, carinas near and parallel to the outer 

 edge : scutel densely and very finely punctured, with the disk somewhat 

 convex : elytra widest behind the middle, thence to the apex gradually 

 arcuated ; punntate-striate, the interstices flat, finely and indefinitely punc- 

 tured and rugulose : beneath and feet lighter tinted than above. Bears a 

 strong resemblance to the preceding, but differs essentially from it in the 

 outlines and punctuation of the thorax, and in the form and indentation of 

 the front and clypeus. 



4. A. strigatus. Fusco-testaceous ; front triangularly impressed. — 7 1. long, 

 2* 1, wide. Pennsylvania. 



Elata- strigatus, Melsh. Catal. 



Brownish-red or castaneous : head confidently rugose-punctured, with the 

 face triangularly impressed ; clypeus porrect, with the apex almost truncate ; 

 antennae slender, as long, or longer than the thorax, hardly serrate or only 

 very feebly so, second joint half the length of the third : eyes black: thorax 

 longer than wide, wider at base than at apex, convex, finely, confertly and 

 somewhat rugosely punctured ; medial impressed line only visible behind 

 the middle; sides feebly rounded ; sparsely pubescent ; hind angles short, 

 obtuse, straight, and finely and obliquely carinate : scutel somewhat im- 

 pressed, coarsely punctured : elytra obviously punctate-striate, with the 

 interstices finely and distantly punctured, and transverse-rugulose, flat ; 

 sides rectilinear from the base to behind the middle, from where to the apex 

 they are gradually arcuated : beneath rufo-testaceous : feet yellowish. 



5. A. cavifrons. Rufous ; front widely impressed ; thorax subquadrate.— 

 6 1. long, 2 1. wide. Pennsylvania. 



