100 GEO. H. HORN, M. D. 



Posterior tibiie stout, that is fully or more than half as broad at apex as 



long on the posterior border. 

 Posterior tibiae, with oblique ridges, the discal striae not very distinctly 



punctured crassa. 



Posterior tibiae without oblique ridges, but with numerous asperities ; striae 



very distinctly punctured spissipes. 



As all the species are fimbriate along the entire border Avith yel- 

 lowish hair, a repetition of this in each of the following descriptions 

 has been thought unnecessary. 



JE. rufesceiis {rufa \\ Lee.)— Elongate, parallel, feebly convex, ferruginous 

 or reddish brown, moderately shining. Head feebly convex, coarsely punctured 

 and scabrous, the frontal suture slightly impressed. Clypeus neai'ly semicircular 

 in outline, subtruncate in front narrowly margined. Thorax a little wider than 

 long, not narrowed at apex, sides feebly arcuate, lateral marginal subcrenate in 

 front, sen-ate near the hind angles which are very obtuse, base arcuate, the mar- 

 ginal line distinct, disc feebly convex, with very coarse punctures rather closely 

 placed, with finer punctures intermixed, a space near the hind angles with finer 

 punctures only. Elytra as wide at base as the thorax, sides parallel, humeri 

 slightly dentate, disc striate, striae closely punctured, intervals slightly convex, 

 smooth. Mesosternum opaque, alutaceous, obsoletely punctate. Metasternum 

 elongate, sparsely punctate. Abdomen alutaceous, sparsely punctate. Posterior 

 tibiae relatively slender, with two short oblique ridges, the spurs moderately 

 long, rather slender, acute at tip. Length .18 inch; 4.5 mm. 



This species is remarkable in its elongate, parallel form, not differ- 

 ing greatly in this respect from Atcenius abcUtiis. The color is always 

 some modification of reddish brown. 



The name rufa proposed by LeConte is' preoccupied by Fabricius, 

 and is therefore changed to rufescens. 



Occurs at Marquette, Lake Superior, and in western Nevada. 



JE. cylinclrica Esch. — 01)long oval, slightly broader behind, convex, pice- 

 ous, shining, legs brownish. Antennae and palpi rufotestaceous. Head moder- 

 ately convex, coarsely and densely punctured, rugose in front. Clypeus semicir- 

 cular, subtruncate in front. Thorax nearly twice as wide as long, slightly 

 narrower in front, anterior angles acute, sides feebly arcuate, hind angles dis- 

 tinct, but obtuse ; base arcuate, somewhat sinuate, the marginal line distinct, the 

 entire lateral and basal margin serrate, disc moderately convex, a slight median 

 depression posteriorly, a concavity near the front angles, a slight depression at 

 middle of declivity, surface very coarsely closely punctate, a little finer near the 

 apex. Elytra as wide at base as the thorax, slightly narrower behind, humeri 

 distinct not dentate, surface deeply striate, striae coarsely closely punctured, in- 

 tervals slightly convex, subbiseriately punctulate at middle, uniseriately at the 

 sides. Mesosternum opaque, coarsely punctured, subcarinate between the coxae. 

 Metasternum rather sliort, smooth. Abdomen indistinctly alutaceous, each seg- 

 ment with a transverse row of punctures. Posterior femur not broadly oval, 

 tibiae relatively slender with three oblique ridges, the spurs moderately long, 

 acute at tip. Length .16-.20 inch ; 4-5 mm. 



