318 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. 



equal in length to the next two combined, fourth to the seventh inclu- 

 sive subequal, eighth subtriangular, ninth and tenth suborbicular, 

 eleventh short ovate. 



Pronotum transversely oval, about one-half wider than long, widest 

 at the middle ; disc moderately and evenly convex, not very finely and 

 quite densely punctate, denser and granulate laterally; apex more or 

 less feebly emarginate and" more or less obsoletely margined; sides 

 quite evenly and moderately rounded, rarely just the least feebly sin- 

 uate before the basal angles, marginal bead fine and entire; base quite 

 truncate, more or less finely and obsoletely margined, subequal to or 

 about a seventh wider than the apex, frequently a little shorter than 

 the length; apical angles obtuse, narrowly rounded at tip and not 

 prominent; basal angles obtuse and not rounded. 



Propleurm more or less shining, irregularly nniricato-granulate and 

 rugidose. 



Elytra oval, less than tw^ice as long as wide, widest at the middle ; 

 hase not emarginate and evidently wider than the contiguous pro- 

 thoracic base; hnneri usually broadly rounded, sometimes obtusely 

 and less broadly so; sides evenly arcuate, apex not very narrowdy 

 rounded ; disc more or less feebly or moderately convex on the dorsum, 

 laterally more strongly rounded, not suddenly inflexed, although 

 somewhat so occasionally, arcuately declivous posteriorly; surface 

 rather finely and submuricately punctate centrally, laterally aud on 

 apex muricato-granulate, granules and pinictures irregularly but 

 closely placed ; punctures usually more or less simple at centre of the 

 disc. 



Epijyleura at middle as w^ide as the mesofemur at base, gradually 

 narrowing from base to apex, superior margin straight beneath the 

 humeri wdien viewed longitudinally from the apex; surface smooth, 

 and obsoletely punctate. 



Sterna more or less densely punctate. 



Paimpleurce quite densely pmictate. 



Abdomen shining, more or less densely punctate, more or less 

 rugulose, frequently reticulately so; last segment occasionally rufous. 



Legs moderate in length and stoutness; anterior femora more or 

 less sinuate in outer fifth and mutic ; anterior tibiae more or less con- 

 stricted at base, spurs quite similar in the sexes, the anterior slightly 

 longer and stouter than the posterior; anterior tarsi with the first 

 joint feebly thickened at tip beneath, and dissimilar in the sexes. 



Male. — Body somewhat slender, antennae attaining the base of the 

 prothorax; elytra quite evenly, arcuately and feebly obliquely de- 

 clivous posteriorly. Abdomen slightly oblique, not very moderately 

 convex; first two segments broadly and not strongly impressed at 

 middle. Anterior tarsi with the first two joints clothed with golden 



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