REVISION OF ELEODIINI BLAISDELL. 65 



gradually but less rapidly narrowing from base to apex. First joint 

 of the anterior tarsi with tuft of ordinary spinules at tip beneath. 



Measurements. — Males: Length, 12-18 mm.; width, 6-7 nmi. Fe- 

 males: Length, 18.5-21 mm.; width, 7.5-9.5 mm. 



Genital characters^ male. — Edeagophore flaxseed-shaped (flattened 

 oblong-ovate), slightly elongate and not usually arched. 



Basale oblong, glabrous, evenly convex ; sides more or less parallel. 



Apicale triangular, slightly elongate, apical region more or less 

 deflexed; surface glabrous, rather strongly convex at middle, with a 

 long median membranous groove reaching nearh" to the base, groove 

 linear in basal third; sides broadly sinuate at middle third, slightly 

 arcuate toward base ; apex acute and rather gradually narrowed ; 

 base very broadly lobed at middle and very feebly sinuate laterally. 



Sternite slightly transverse. Each lobe with the external border 

 feebly arcuate and oblique, becoming arcuate at apex, the latter 

 !)roadly rounded or feebly subtruncate, angle scarcely evident; inter- 

 nal border nearly straight ; surface rather sparsely punctate in apical 

 two-thirds, setose, setne moderately long on apical border, shorter 

 toward base. Membrane sparsely setose across the bottom of the sinus, 

 which is narrow and triangular. 



Female. — Genital segment quadrate and setose. 



Valvula (Plate 3, fig. 14). — Dorsal plate somewhat broadly oblong, 

 moderately explanate externally and at apex, frequently Avith a 

 marked antero-posterior convexity; surface plane, sparsely punctate 

 along the internal moiety and at apex, seta^ not long; external and 

 internal borders more or less straight and quite parallel; apex with 

 the external lobe broadly rounded and apparently semi-chitinous, the 

 internal lobe small and membranous as usual and sejiarated from the 

 external by a small sinuation at junction of the first and second inner 

 fourths of the apical margin of the dorsal plate. External lobe set 

 with long flying setae, a few on the internal lobe. 



Appendage small, inferior, and more or less compresso-mammilli- 

 form. Fossa rather large and fringed with seta?. 



Basal j)ro')ninences not conspicuous. 



Superior pudendal membrane as in ohsoleta. 



Ventrolateral surface feebly convex toward base, broadly and shal- 

 lowly concave before the apex, glabrous, finely and very sparsely 

 jiunctate, setse minute, denser at apex; submarginal groove shallow 

 and not well defined at the apex, not reaching the internal lobe. 

 Internal margins of the valves contiguous at basal sixth, (lenital 

 fissure quite broadly fusiform. Inferior pudendal membrane regulose 

 and largely visible. 



It is to be noted that the sides of the dorsal plates are not as 

 strongly explanate as in ohsoleta. 

 59780— Bull. 03— OD 5 



