EEVISION OF ELEODIINI BLAISDELL. 431 



diagonally convex, basal half smooth and shining, inipunctate. the 

 apical moiety feebly and inwardly declivous, quite densely and 

 coarsely punctate, setose, setse long and dense at apex. Membrane 

 not setose, sinus triangular. 



Female. — Genital segment (Plate 4, fig. '21) subparabolic in out- 

 line — exclusive of the a]iices, not setose and strongly chitinized. 

 Superior pudendal membrane broadly e.rpos^^fJ. 



Yalrula. — Dorsal plate suboval to oval-oblong; surface more or less 

 concave, Avith sides very slightly reflexed, shining and very sparsely 

 punctate; external border rather evenly arcuate; internal margin 

 more or less arcuate, apical margin rounded with angle obsolete; 

 there are a few coarse punctures about the basal margin. Apex 

 strongly produced, excurved, divergent and slightly decurved. convex 

 above, broadly rounded at tip and chitinous, more or less excavated 

 externally at base by the fossa, which has its margins very finely and 

 inconspicuously setose. 



Appendage punctiform. The valvular membrane is exposed on 

 the internal surface of the valve, and is more or less chitinous and 

 impunctate. 



Superiot' pudendal niemhrane is triangularly exposed, longitudi- 

 nally and reticulately rngulose. 



Ventrolateral surfaces convex and not inflated, more or less im- 

 pressed laterally, sparsely and irregularly punctate, glabrous; sub- 

 marginal groove well developed beneath the external border of the 

 dorsal plate. Apex more or less concave beneath. Internal margins 

 of the valves contiguous to near the apex, genital fissure small, nar- 

 row, and subapical. 



Hahitat. — Lower California (Cape St. Lucas, LeConte and Horn; 

 El Taste, Gustav Beyer; Sierra El Chinche, collection of Charles 

 Fuchs). 



Number of specimens studied, 8. 



Type in the LeConte collection. 



Type-locality. — Cape St. Lucas. 



Salient type-characters. — Elongate, somewhat shining; thorax 

 quadrate, apex emarginate, apical angles acute and not acuminate, 

 sides broadly rounded, also the base, basal angles obtuse; elytra 

 elongate oval, strongly declivous behind, apex not prolonged, strise 

 strongly punctate, slightly impressed, interstices with a few sparselj^ 

 placed punctures. Anterior femora mutic (LeConte). 



Diagnostic characters. — Innocens is the only species of the sub- 

 genus with striate elytra at present known to our fauna ; it is much 

 smaller than gigantea and duller in luster. Horn writes that the 

 anterior femora are feebly sinuate, but I can not see that this character 

 is an}' more marked here than in the other members of the group. 

 By the nearly mutic femora it is recognized from the members of the 



