20 THOS. L. CASEY. 



0113 ; legs paler, antennae scarcely paler. Head moderate, just visibly wider 

 than Itmg ; eyes very small ; interocular surface coarsely, very closely and 

 evenly punctate, punctures round, shallow, sub-variolate, strongly outlined, 

 separated generally by less than one-half their own widths ; antennae 

 moderate, ninth joint scarcely wider than long. Prothorax slightly wider 

 than the head ; widest very slightly before the middle, where it is scarcely 

 one-half wider than long ; sides thence rather strongly convergent and dis- 

 tinctly arcuate anteriorly, very slightly more convergent and nearly straight 

 posteriorly ; anterior margin just perceptibly longer than the posterior, 

 equally arcuate ; surface strongly and evenly convex, very strongly, finely, 

 and evenly punctate, punctures round, rather deeply and roundly impressed, 

 interspaces as wide as ,the punctures, flat, and highly polished; just behind 

 the middle, and separated by a distance equal to one-third the width of the 

 pronotum, are two short, narrow, deep, longitudinal, and distinctly defined 

 canaliculations. Pllytra at base very slightly wider than the pronotum ; 

 sides rather feebly divergent posteriorly, slightly shorter than the width at 

 base, feebly and evenly arcuate ; together broadly, roundly, and feebly 

 emarginate behind ; suture equal in length to the pronotum ; disk rather 

 convex, extremely feebly and evenly punctulate, punctures round, separated 

 by one and one-half times their own widths, excessively feebly impressed, 

 nearly equal in diameter to those of the pronotum ; surface distinctly irides- 

 cent as in Selenophorus ; sutural striae very deep. First two abdominal 

 segments slightly wider than the contiguous elytra ; border very strong ; 

 surface minutely granulose and feebly lustrous. Legs moderate ; first joint 

 of posterior tarsi shorter than the next two together, fourth distinctly longer 

 than the second and third together, second joint longer than the third. 



Mule. — Unknown. 



Female. — Sixth ventral segment rather angularly rounded behind. 



Length 1.1 mm. 



Ross County, Oliio; one specimen. 



Tliis little species may be recognized at once by the peculiar shape 

 of tiic prothorax, by the short canaliculations on its dorsal surface, 

 and liy tlie iridescence of the elytra; also by the tarsal structure. It 

 appears to be one of the most well-marked species of the genus. 



8. E. texanus n. sp. — Form rather slender. Pubescence fine, rather 

 sparse, niixli'rate in length, recumbent. Body uniformly reddish-testaceous. 

 Head moderate, wider than long ; interocular surface rather strongly convex, 

 somewhat irregularly and sparsely punctured, along the middle usually im- 

 pnnctate : teeth of labrum nearly twice as long as their intervals asunder ; 

 eyes small ; antennae paler, nearly as long as the width of prothorax, joints 

 three, four, and five equal, sixth joint shorter and thinner, seventh suddenly 

 thicker tlian the third, nearly globular, eighth smaller, globular, ninth very 

 slightly larger than the seventli, transversely oval, joints ten and eleven 

 abruptly much thicker, two-thirds wider than the ninth, equal in width, 

 tenth transverse, eleventh as long as the two preceding joints together, finely 

 acuminate. Prothorax one-third broader than long ; sides parallel and feebly 



