REVISION OF TENEBRIONID SUBFAMILY CONIONTIN^ 73 



length, very strongly narrowed from base to the deeply and cir- 

 cularly sinuate apex, with the sides very evenly arcuate, the angles 

 rather less than right and but slighrly blunt, the basal angles 

 much produced and acute ; surface scarcely evidently punctate 

 medially, minutely and sparsely so laterally, the margin flatly 

 explanate, rather broadly basally, very narrowly apically, the 

 bead fine and feebly elevated ; elytra slightly elongate, equal in 

 width to the prothorax, the sides nearly straight, the reflexed 

 humeral part of the epipleurae arcuately prominent ; surface with 

 stronger longitudinal ridges than in any other species, about six 

 on each elytron, the concave intervals very obscurely, coarsely and 

 confluently foveate and subopaque, becoming more shining and 

 more clearly punctate laterally, the flanks very abruptly inflexed 

 along an obtusely convex line, the under part sparsely punctate ; 

 epipleura^ rapidly broader than usual from apex to base, with a 

 few fine punctures and very small hairs internally, the outer 

 edge much deflexed basally ; h3'pomera with a few small decum- 

 bent hairs posteriorly. Length 9.0-9.S mm. ; width 5.6-6.2 mm. 

 Arizona subnitens n. sp. 



Form oval, subinflated posteriorly, larger and stouter, convex, deep 

 black, glabrous, dull and alutaceous, the elytra less strongly so; 

 head nearly as in subnitens but more closely punctate ; prothorax 

 nearly similar, except that the sides become more converging and 

 straighter anteriorly than near the base, the lateral explaniture 

 more concave, the apical angles more obtusely rounded and the 

 punctures near the sides much larger and closer, though feebly im- 

 pressed and rather indistinct ; elytra but little longer than wide 

 in the apparently female type, somewhat inflated, with broadly 

 arcuate sides, at the middle slightly wider than the prothorax, 

 more abruptly and very obtusely rounded at apex, the reflexed 

 humeral arcuation less prominent; surface with the longitudinal 

 lines less prominent and less shining, the opaque irregular foveas 

 of the intervals rather better defined, punctiform laterally, the 

 inflexed sides and epipleura; nearly similar. Length 10.6 mm.; 

 width 7.0 mm. Kansas turgidus n. sp. 



20 — Body smaller in size, stout, oblong-oval, convex, deep black, 

 glabrous; head flat, minutely, not densely punctate, the clypeus 

 broadly sinuate medially, more feebly but evidently emarginate at 

 the ends of the oblique sutures, not in the least reflexed, thickened 

 or impressed apically, the sutures forming very fine and less 

 opaque unimpressed lines ; prothorax formed as in subnitens^ with 

 strongly converging, evenly and moderately arcuate sides through- 

 out, the explanate sides and basal angles similar, though with the 

 marginal bead very much thicker than in any other species of this 

 group, the apical angles less narrowly blunt, the surface so densely 

 opaque as to obscure all trace of punctuation ; elytra scarcely 

 longer than wide, as wide as the prothorax, the sides parallel and 

 straight, broadly rounding about the very obtuse apex in apical 



Proc. Wash. Acad. Sci., April, 190S. 



