REVISION OF ELEODIINI BLAISDELL. 465 



Male. — Somewhat narrow. Antennae reaching considerably be- 

 yond the prothoracic base. Abdomen moderately convex, first three 

 segments rather broadly impressed along the middle. Protibise 

 suddenly and briefly sinuate at base. 



Female. — More robust. Antenna- reaching slightly beyond base 

 of the prothorax. Abdomen rather strongly convex. Protibise 

 gradually narrowing at base. 



Measurentents. — Males: Length, 14-19.5 nun.; width, 6-9 nun. Fe- 

 males : Length, 13.2-17 mm. ; width, 7-8.5 mm. 



Genital characters., male. — Edeagopliore very slender, elongate, and 

 moderately arched. 



Basale about five times longer than wide, rather strongly convex 

 from side to side, the latter feebly arcuate. 



Apicale small, triangular, slightly elongate ; svu'face rather strongly 

 convex and without groove; sides feebly and broadly sinuate; apex 

 gradually attenuated and acute; base with a rather short, subacute 

 lobe at middle and feebly sinuate laterally. 



Sternite transversely triangulo-parabolic in outline. Each lobe 

 triangular, with external border more or less arcuate to apex, the 

 latter subacute and rather gradually narrowed; internal margin 

 nearly straight and oblique; surface more strongly convex along the 

 external border, thence sloping inward, rather densely punctate in 

 apical two-thirds, setose, seta' long and rather dense, especially in 

 apical third. Sinus more or less semicircular, membrane more or 

 less setose across the same. 



Female. — Genital segment (Plate 5, fig. 9) triangular, surface quite 

 plane, impunctate and not setose. 



Valvula. — Dorsal plate elongately subtriangular, moderately nar- 

 rowed from base to apex ; surface plane and glabrous ; external 

 border more or less feebly sinuate ; apical margin truncate at middle, 

 internally continuous with surface of the apex, angle evenly rounded ; 

 internal margin very feebly arcuate. Apex produced and chitinous, 

 more or less everted, convex above and concave beneath, tip rounded. 

 Fossa at base of the external surface of apex and beneath apical mar- 

 gin of dorsal plate. 



Appendage short mammilliform, with a pencil of four or five 

 rather long setee at tip. 



Basal prominences moderately developed. 



Superior pudendal memhrane attaining the apical fourth of the 

 dorsal plate, and longitudinally rugulose. 



Ventrolateral surfaces. — Body slightly protuberant laterally in 

 basal half, feebly concave laterally before the apices; surface lines 

 straight. Submarginal groove shallow beneath the feebly expanded 

 external border of the dorsal plate. Internal margins of the valves 

 contiguous in basal three-fourths; genital fissure in apical fourth 

 59780— Bull. 03—09 30 



