348 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. 



Sterna densel}- pimctato-riigose. 



Parafleurm coarsely and rather densely punctate. 



Abdomen shining, coarsely and more or less strongly pnnctato- 

 rngulose, more densely and strongly so about the coxa% last two seg- 

 ments more finely and sparsely punctate, not usually rugulose. 



Legs moderate in length and rather stout, densely and someAvhat 

 coarsely sculptured ; anterior femora mutic and deeply sinuate in 

 outer fifth; tibial spurs rather small and similar in the sexes, the 

 anterior of the protibia? slightly longer than the ])osterior; tarsi dis- 

 similar in the sexes. 



Male. — Slightly robust, but somewhat narrow. Antennse scarcely 

 reaching beyond the base of the prothorax. Elytra arcuately decliv- 

 ous posteriorly. Abdomen rather strongly oblique, moderately con- 

 vex, first two segments very broadly and slightly flattened at middle. 

 First and second joints of the anterior tarsi slightly thickened at tips 

 beneath and with somewhat flattened tufts of golden pubescence; first 

 joint of the middle tarsi with snuiller tufts. 



Female. — Robust. Antennse scarcely attaining the prothoracic 

 base. Elytra strongly, arcuately and vertically declivous behind. 

 Abdomen moderately oblique, rather strongly convex. First joint 

 of the anterior tarsi thickened at tip beneath, marginal spinules 

 rather dense, groove scarcely interrupted at tip. 



Measurements. — Males: Length, 13-15.5 mm.; width, ().'2-T mm. 

 Females: Length, 14.5-15.5 mm.; width, 7.5-8 mm. 



Genital characters^ mcile. — Edeagophore fusiform oblong-ovate and 

 feebly arched. 



Basale about two and a half times longer than wide, dorsal sur- 

 face evenly and not strongly convex, sides feebly arcuate. 



Apicale triangular; surface quite strongly convex, without groove; 

 sides broadly and feebly sinuate; tip subacute; base broadl,v rounded. 



Ste7m,ite rather short and somewhat transverse. Each lobe tri- 

 angular and rather small ; surface feebh^ convex externally, and 

 declivous internally, smooth in basal third, finely and not very 

 densely punctate, setose, setse gradually increasing in length to apex 

 where they are moderately long; external border oblique in basal 

 half, thence arcuate to apex, the latter rounded but not broadly so; 

 internal margin oblique and moi'e or less straight. Membrane not 

 setose across the bottom of the sinus, the latter triangular. 



Female. — Genital segment distinctly triangular, surface very 

 slightly ogival, feebly setose, rather depressed and well chitinized. 



Valrida (Plate 4, fig. 2). — Dorsal ])late elongately oblong-tri- 

 angular, sides more or less converging to apex; surface slightly out- 

 wardly declivous, feebly concave, glabrous and shining, very sparsely 

 punctate, each puncture with a minute seta, few apically; external 

 border sti-aight; apical margin arcuate to subacutely rounded; in- 



