REVISION OF ELEODIINI BLAISDELL. 55 



Apicale triangular and slightly longer than wide; surface evenh^ 

 convex, with a narrow median groove in apical half; sides broadly 

 sinuate at the middle, apex gradually narrowed and subacute; base 

 broadly lobed and feebly sinuate laterally. 



Sternite transversely parabolic in outline. Each lobe subtriangular 

 with the external border evenly and broadly arcuate, apex rounded 

 but not narrowly ; internal border rather short ; surface evenly con- 

 vex, glabrous at basal third, sparsely punctate and setose apically, 

 setae moderate but longer at apical border. Membrane sparsely setose 

 across the bottom of the sinus. 



Female. — Genital segment subquadrate, sometimes slightly deflexed 

 at apex, setose. 



Valrula (Plate 4, fig. 27). — Dorsal j^late oblong, moderately ex- 

 planate externally; sides subparallel, and slightly sinous; surface 

 nearly plane, slightly longitudinally concave, glabrous and im- 

 punctate in basal third, elsewhere coarsely, sparsely, and irregularly 

 punctate, set-ose, seta^ rather long and reclining; apical margin on 

 external lobe strongly arcuate in outer three-fourths, internally 

 sinuate. Both apical lobes set with long hairs; external lobe large, 

 the internal very small. 



Appendage submammilliform and scarcely projecting beyond the 

 fossa, hardly visible from above. Fossa rather large. 



Basal prominences scarcely evident. 



/Superior pttdendal membrane longitudinally rugulose and reach- 

 ing about to the base of the internal lobe. 



Ventrolateral surface rather strongly convex at base, scarcely to 

 feebly transversely concave before the apex ; submarginal groove 

 broad extending beneath the apex to the margin of the fossa. In- 

 tei-nal margins of the valves contiguous at basal eighth; fissure 

 broadly fusiform and closed in basal half by the inferior pudendal 

 membrane. 



Habitat. — Arizona (Oracle, July 15, Hubbard and Schwarz; 

 Pinal Mountains, collection. University of Nebraska; Santa Rita 

 Mountains, elevation 5,000-8,000 feet, July, F. H. SnoAv) ; New 

 Mexico (Santa Fe Canyon, August, elevation 7,000 feet, F. FI. Snow) ; 

 Texas (Brownsville. June, F. H. Snow). 



Number of specimens studied, 13. 



Type in my own collection. 



Type-locality. — Pinal Mountains, Arizona. 



Salient type-characters. — Subopaque. Prothorax widest at (male) 

 or in advance (female) of the middle. Elytra noticeably narrowing 

 at apical fourtli in l)oth sexes; striato-punctate, stria^ not impressed, 

 strial punctures rather small, the series rather distant, interstitial 

 punctures very fine. Legs long. 



