REVISION OF ELEODTTNT- — BLAISDELL. 73 



size, fine, diiTiisely arranged, not dense, generally some evidence of 

 a serial order; the strial punctures are frequently slightly the larger, 

 the series are moderately distant and rarely impressed. 



EprpleunB moderate in width, gradually narroAving from base to 

 apex, very feebly sinuate along the superior margin beneath the 

 humeral region; surface finely and sparsely punctulate. 



Sterna more or less shining, rather densely punctate and more or 

 less rugose. 



Parapleurce quite densely punctate. 



Abdomen glabrous, finely and very sparsely punctulate, usually 

 more or less distinctly rugulose — almost rugose at times. 



Legs moderate in length and stoutness, sometimes moderately 

 thickened; anterior femora mutic and the anterior tibial spurs slightly 

 dissimilar in the sexes; anterior tarsi with the first joint slightly 

 thickened at tip beneath and slightly dissimilar in the sexes. 



Male. — Oblong-ovate, rather slender and elongate. Elytra grad- 

 ually narrowing in the posterior third, arcuately and somewhat 

 obliquely declivous posteriorly. Abdomen oblique, moderately con- 

 vex, more or less flattened at middle of the first two segments. 

 Anterior spurs of the anterior tibia' slightly thickened, nearly twice 

 as long as the posterior, botli comparatively short. First joint of the 

 anterior tarsi set with a small tuft of spinules, the modified spinules 

 scarcely evident. 



Female. — Ovate and robust. Elytra broadly oval, and somewhat 

 gradually narrowing in the posterior fourth, arcuately and vertically 

 declivous behind. Abdomen horizontal and strongly convex. An- 

 terior tibial spurs rather variable in length, the anterior distinctly 

 broadened and gradually narrowing from base to apex, sometimes 

 with sides slightly arcuate in basal half, and about a third longer 

 than the posterior, both acute, tapering, and stouter than in the male. 

 P^irst joint of the anterior tarsi set with a small transverse tuft of 

 ordinary spinules on the thickened tip beneath. 



I have observed only four forms worthy of distinction in the hun- 

 dreds of specimens before me of this variable species. 



Forma typica. — Thorax somewhat transverse, apex feebly emar- 

 ginate or truncate, angles somcAvhat obtuse and not at all prominent 

 anteriorW. Femora di'^flnrfly thirhened. 



Male. — Elytra rather more elongate than usual. 



Female. — Elytra with tlie sides more strongly arcuate anteriorly 

 than usual. 



Forma catalinae. — Pronotum more strongly punctate, especially 

 laterally. Femora more or less thickened. 



Forma communis. — Thorax as in the typical form. Elytra with 

 the sides less strongly and suddenly arcuate anteriorly. Femora not 

 noticeablv thickened. 



