BEVISION OF ELEODIINI BLAISDET.L,. 331 



Stemite parabolic and slightly transverse. Each lobe triangular; 

 external border slightly oblique, and more or less feebly sinuate in 

 basal half, thence subtruncate and feebly arcuate to apex, the latter 

 moderately rounded; internal border more or less sinuate; surface 

 feebly convex, rather coarsely and densely punctate in apical three- 

 fourths, seta^ rather long, denser on apical margin. 



Female. — Genital segment (Plate 5, fig. 13) triangular, about a 

 third longer than wide; surface about plane, finely setose on apex. 



Yalinda. — Dorsal plate oblong, elongate, about three times longer 

 than wide; surface plane, more or less declivous laterally at base, 

 smooth and shining, very sparsely and finely punctulate in apical 

 half, setae ver}^ fine and not distinct; external border about straight, 

 feebly sinuous and very feebly converging apically; apical margin 

 more or less arcuate and rather distinct from apex; internal margin 

 quite straight. Apex short and scarcely more prominent than the 

 ajDpendage, subacute, membranous, finely setose, with a few rather 

 long setse at tip. 



Appendage short mammilliform, with a pencil of quite long setse 

 at tip. Fossa nearly occupying the external surface of the apex. 



Basal prominenees not evident. 



Supeiioi' pudendal menihrane scarcely longitudinally rugulose and 

 attaining the apical fourth of the dorsal plate. 



Ventrolateial surfaces. — Body triangular, surface lines straight as 

 viewed longitudinally, smooth and shining, feebly jDunctate and 

 setose in apical third; submarginal groove distinct beneath the 

 slightly explanate external border of the dorsal plate. Internal 

 margins of the valves contiguous in basal three-fifths, fissure in 

 apical two-fifths, narrow and nearly closed. 



Habitat. — Nearly all of the specimens before me were taken on 

 Santa Eosa Island, which lies off the coast of Santa Barbara County, 

 California. One specimen bears a " Santa Barbara Co." label and 

 another simply a " Cal.," Avhile in Mr. Fuchs' collection is one labeled 

 "Alameda County." There are no differences noticeable in the speci- 

 mens. I am not sure that this species is found on the mainland. 



Number of specimens studied, 19. 



Type a male in the LeConte collection. 



Type-locality. — Santa Rosa Island ; collector, Mr. C. M. Bache. 



Salient type-characters. — Subopaque. Head and thorax rather 

 densely punctate; thorax with the sides strongly rounded, briefly 

 sinuate behind; basal angles obtuse and slightly prominent; base 

 broadly rounded. Elytra oval, apex attenuate and strongly de- 

 clivous; humeri broadly rounded, dorsum deplanate, punctures small 

 and granular, irregularly placed, granules on each side briefly pilifer- 

 ous. Antennai a little incrassate at tip (LeConte). 



