286 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. 



laco of the caiidti or produced apex; surface finely and ol)Soletely 

 punctidate. 



Sterna more or less fineh^, denseh^, obsoletely punctate and rugulose. 



Paraplevra' more or less finely and rather densely punctate. 



Abdomen horizontal, finely, obsoletely punctulate and ru2:ulose, 

 punctures denser on the fifth segment. 



Legs quite slender and moderately long-, usually not strongly sculp- 

 tured; anterior femora armed in both sexes; anterior tibial spurs 

 subequal and acute ; tarsi similar in the sexes. 



Male. — Elongate and somewhat slender. Antennie attaining a 

 slight distance beyond the prothoracic l)ase, the latter a little greater 

 than the Avidth of the prothorax. Elytra very obliquely declivous, 

 then subliorizontally produced at apex into a long caiida, the latter 

 frequently with the sides more or less converging to tip, which is 

 slightW deflexed. Abdomen quite strongly convex, feebly, longi- 

 tudinally, and narrowly impressed at middle on first three segments. 

 The anterior femora armed with a moderate and acute tooth; pos- 

 terior tibia? quite strongly arcuate to slightly beyond the middle, then 

 rather suddenly dilated and straight to apex. 



Female. — Quite robust. Antenna? not quite attaining the protho- 

 racic base, the latter equal to the length. Elytra moderately broadly 

 oval, arcuately declivous posteriorly, apex slightly produced and sub- 

 acute. Abdomen strongly convex. Anterior femora with a more or 

 less obtuse tooth, and the metatibia^ straight without being widened 

 apicalh^ 



Measurements. — Males: Length, 27-29 nmi. ; width, 9-9 mm. Fe- 

 males: Length, 24—25.5 mm.; width, 9-9.5 nnn. 



Genital characters., male. — Edeagophore elongately subfusiform 

 and feebly arched. 



Basale more or less oblong, evenly convex above, and the sides 

 evenly and moderately arcuate. 



Apicale elongately triangular and very feebly decurved; surface 

 moderately and evenly convex above, with a narrow median longi- 

 tudinal groove; sides feebly arcuate or straight; apex not produced 

 and narrowly rounded ; base acutely lobed at middle, broadly and 

 feebly sinuate laterally. 



Sternite subparabolic in outline. Each lobe triangular; external 

 border more or less evenly arcuate; apex rather broadly rounded; in- 

 ternal margin more or less sinuate; surface glabrous, rather evenly, 

 moderately densely punctate and setose in apical three-fourths, setie 

 moderate in length, becoming long on the apex. Membrane not 

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



Female. — Genital segment robust, subquadrate and strongly chiti- 

 nized. 



