Coleopterological Notices. 357 



narrowly subexplanate near the basal angles, very finely but distinctly and 

 rather sparsely punctate, the punctures becoming more than three times as 

 large, densely crowded and subcoalescent near the sides, the latter margined 

 with a very fine acute bead. Elytra about three times as long as the prothorax 

 and, in the middle, fully one-fifth wider ; sides parallel and broadly but dis- 

 tinctly arcuate, almost continuous in direction with those of the prothorax ; 

 apex broadly ogival ; disk with distant, unimpressed rows of rather small but 

 very distinct, rounded and approximate punctures which continue to the apex 

 but become very indistinct; intervals fiat, extremely minutely, sparsely and 

 irregularly punctate. Abdomen very finely, feebly rugulose, minutely but not 

 very sparsely punctate. Legs slender, the posterior tarsi much shorter than 

 the tibia?. Length 7.5 mm. ; width 3.3 mm. 



Arizona. 



The metasternum is very coarsely, strongly and rather densely 

 punctate, the punctures distinctly separated and variolate, with the 

 transverse groove apparently well developed ; it is distinctly shorter 

 than the first ventral segment. 



The trapezoidal form of the prothorax, the form of the body 

 which is gradually narrowed in front from the middle of the elytra, 

 the rounded prothoracic angles, dull lustre and very minute punc- 

 tures of the strial intervals, will at once distinguish this species 

 from any other of our fauna. 



E. pinguis Lee. — N. Spec. Col., 1866, p. 107. — Broadly elliptical, rather 

 strongly convex, dark rufo-ferruginous throughout, decidedly alutaceous in 

 lustre. Head short and transverse, rather finely, very densely punctate ; apex 

 transversely truncate, with a small feeble angulate emargination on each side 

 at the suture ; eyes moderate, the external outline oblique but nearly straight, 

 posteriorly divergent, the base coincident and equally prominent with the 

 short tempus visible behind, but more prominent than the sides before them 

 which are strongly rounded for a short distance, the fine fold or ridge short 

 bat distinct ; antennae long and very slender. Prothorax two and one-fourth 

 times as wide as long, the apex scarcely two-thirds as wide as the base, 

 very distinctly emarginate in circular arc, the angles slightly obtuse but not 

 rounded ; base transverse and truncate throughout, with excessively feeble 

 traces of the broad lateral sinuations ; basal angles obtuse and very distinctly, 

 rather broadly rounded ; sides strongly arcuate toward base, nearly straight 

 and convergent anteriorly ; disk scarcely perceptibly wider a little before the 

 base, rather finely but strongly and very densely, uniformly punctate through- 

 out, the punctures more crowded but not distinctly tending to coalesce laterally, 

 the surface very feebly subexplanate near the sides which are very minutely 

 and rather feebly beaded. Elytra just visibly wider than the prothorax and 

 between three and four times as long, the sides very feebly arcuate, the apex 

 broadly parabolic ; disk finely, somewhat sparsely punctate and without trace 

 of series, the punctures finer and much more feeble than those of the prono- 



