EEVISION OF ELEODTTNl BLAISDELL. 129 



Apicale triangular, slightly elongate ; surface evenly convex, 

 obsoletely grooved at miclclle third ; sides in basal half rather 

 strongly arcuate, thence somewhat strongly sinuate to tip, the latter 

 acute and rather slender; base broadly and feebly rounded at mid- 

 dle, feebly sinuate laterally. 



Sternltc transverse. Each lobe with the external border '."ather 

 broadly and evenly arcuate, continuously so with the apex, angle 

 more narrowly rounded: internal margin oblique and somewhat arc- 

 uate; surface feebly convex, quite densely punctate and setose in 

 apical half, seta; moderate in length on the apical border. Mem- 

 brane not setose at bottom of the sinus, the latter rather broad. 



Feinale (Plate i, fig. '28). — Genital segment quadrate, valves more 

 or less reflexed externally and quite conspicuously setose. 



YalriiJd. — Dorsal plate suboval, concave, sides reflexed; surface 

 somewhat glabrous, reflexed apical two-thirds of the internal border 

 and about base impunctate, elsewhere rather sparsely and quite 

 strongly punctate, seta; rather long; external border more or less 

 arcuate, angle subrectangular ; apical margin rather broadly sinuate, 

 angle with numerous seta»; internal uuirgin more or less broadly 

 arcuate. Apex triangular and rather long, finely setose. 



Aj}pe)i(hi</e strongly flattened, large and transversely oval, its outer 

 margin more or less continuing the line of the external border of the 

 dorsal plate, sparsely clothed with rather long seta;. Fossa narrow 

 and transverse. 



Superior pudendal memhrmie not rugulose and reaching to the 

 middle of the dorsal plate. 



Basal prominences very slight. 



Yentrolateval surfaces more or less convex across the base and 

 transversely concave laterally before the apices; surface sparsely 

 punctate and finely setose apically; submarginal groove not clearly 

 defined, apparently forming the lateral concavity before the apex. 

 Genital fissure very narrow, scarcely open; internal margins of the 

 valves contiguous basally and apically. Inferior pudendal membrane 

 not visible. 



Ilahifat. — Oregon (collection of LeConte). California (Siskiyou 

 County, collections U. S. Xational Museum and A. Koebele; Los 

 Angeles Count V, D. W. Coquillett). New Mexico? Colorado (Bow- 

 ditch) ? 



Number of specimens studied, 12. 



Type (nuile) in the LeConte collection. 



Type-local it II . — Oregon. 



8alient type-characters. — The following description is by LeConte: 



Elougato-oviita, nigra i)anuii nitida, capite tlioraceqno subjoqualiter iniiietatis, 

 hoc suhquadrato, minus convexo, latitudine panlo breviore, lateribiis rotnndatis, 

 ad basin vix sinuatim rotundato, angulis posticis obtusis rotnndatis. Elytris 



59780— Bull. 63—09 9 



