20 TIIOS. L. CASEY. 



Elytral suture in length equal to or longer than the pronotum. 

 Elytra more or less punctulate. 



Species robust ; sides of elytra rather strongly divergent posteriorly ; 



color pale rufo-testaceous. Mass ti. robustllliis. 



Species more slender ; sides of elytra very feebly divergent posteriorly ; 

 color dark piceo-rufous or blackish-castaneous. 

 Disk of elytra iridescent ; short canaliculations of pronotum very 



deep and distinct 7. iripeiinis. 



Disk of elytra not iridescent ; canaliculations of prothorax either 

 entirely absent, or reduced to very indistinct, shallow erosions, 

 and situated much nearer the base. 



Prothorax much %vider than the head S. texailUS. 



Head and prothorax ecjual in width or extremely nearly so. 



9. ainericaiiiis. 



Elytra entirely inipunctate : very small robust species ; elytra much longer 



than the pronotum ; blackish-castaneous, elytra usually more or less 



clouded with rufous 10. atoniUS. 



1. E. brevipeilliis n. sp. — Form rather slender. Pubescence rather 

 long, line, semi-erect, evenly distributed, pale piceous. General color dark 

 reddish-testaceous, head and abdomen paler, antennae and legs still paler. 

 Head rather large, very slightly broader than long ; eyes very small ; inter- 

 ocular surface very broad, evenly convex, strongly and sub-variolately punc- 

 tate, punctures round, slightly irregularly distributed, close ; between the 

 antennae and in the middle there is a small, inipunctate area; antennal 

 tuberculations very small and distinct ; teeth of labruni rather widely sepa- 

 rated ; antennae moderate, joints three and four equal, five, six, and seven 

 sub-equal in length, the last distinctly thicker, oval, eighth joint smaller, 

 globular, ninth transversely oval, as long as the eighth, tenth one-half wider 

 than the ninth, eleventh equal in width, distinctly longer than the ninth 

 and tenth together, linely acuminate. Prothorax one-third wider than long ; 

 sides parallel, evenly and rather strongly arcuate for three-fojirths the length 

 from the apex, then abruptly, strongly convergent behind, and very feebly 

 sinuate ; posterior angles well marked, though rounded ; anterior margin 

 much longer than the posterior, equally arcuate ; surface rather finely, 

 strongly, and evenly punctulate, punctures roundly impressed, not deep, 

 well marked, separated by slightly more than their own widths ; between 

 the centre of the disk and each basal angle there is a short, longitudinal 

 erosion. Elytra at base as wide as the prothorax ; sides strongly divergent 

 posteriorly, much shorter than the width at base, evenly and rather feebly 

 arcuate ; together broadly, roundly, and rather strongly emarginate behind ; 

 .suture slightly more than two-thirds as long as the pronotum ; surface finely, 

 rather feebly, evenly, and distinctly punctulate, punctures round, impressed, 

 and separated by much more than their own widths ; sutural striae very 

 strong. First two abdominal segments as wide as the contiguous elytra ; 

 border very strong, evident on all the segments. Prosternum .strongly punc- 

 tate, except toward the coxae. Legs moderate ; first joint of the posterior 

 tarsi sliglitly shorter than the fourth, fourth equal in length to the second 

 and third together. 



