REVISION OF TENEBRIONID SUBFAMILY CONIONTIN^ 67 



margin; prothorax similar but less narrowed at apex and more 

 parallel toward base, with the side margins more concave and 

 the apical sinus more transverse medially, the punctures small but 

 less sparse and more distinct, not differing much laterally, the 

 basal angles rather more prolonged backward, acute; elytra simi- 

 lar in outline but less convex, slightly narrower than the protho- 

 rax, the sides parallel and feebly arcuate, rounding at base within 

 the thoracic angles as usual, punctured nearly as in dubuis but 

 somewhat less sparsely ; prosternal lobe broadly rounded at tip, 

 impunctate, very faintly and finely margined throughout its apical 

 contour; anterior tibiae crenulate externally, the external apical 

 projection unusually feeble, much smaller than in dubius. Length 

 8.0 mm. ; width 4.3 mm. California (Lancaster), — H. F. Wick- 

 ham oblongulus n. sp. 



6 — Prosternal process not margined except along the coxal cavities. ..7 



Prosternal process margined at the rounded apex and also along the 

 cavities 8 



7 — Explanate lateral margins of the pronotum deeply concave. Body 



(d^) cuneiform, moderately convex, black throughout, glabrous, 

 though with a few small hairs on the flanks, the hypomera roughly 

 punctured and ciliate, the femora fulvo-pubescent ; upper surface 

 feebly shining, alutaceous ; head finely, not densely punctate, the 

 clypeus concave anteriorly, subangularly sinuate at the middle, 

 with the margin only moderately reflexed, the lateral emargina- 

 tions feeble ; prothorax very transverse, much narrowed anteri- 

 orly, the apex circularly sinuate and about three-fifths as wide as 

 the base, the angles less than right but blunt, the basal angles 

 only moderately produced and not very sharp, the sides arcuate; 

 surface minutely punctate, remotely so medially, more closely but 

 not much less finely laterally ; scutellum much larger and more 

 transverse than in the dubius group, though similarly confined to 

 the basal slope; elytra about a third longer than wide, parallel, 

 with the sides feebly arcuate, not very obtuse at tip, much nar- 

 rower than the prothorax, the asperate punctures sparse and un- 

 even in distribution, closer but not much larger laterally ; surface 

 with some very feeble and irregular longitudinal impressed lines; 

 anterior tibicC very finely, closely serrulate along the external edge, 

 the apical angle acute but only very moderately developed, 

 Length 10.5 mm.; width 5.8 mm. (cJ*). Arizona (southwest- 

 ern) productus Lee. 



Explanate lateral margins nearly flat. Body (cJ*) rather more elon- 

 gate and less cuneiform, piceo-castaneous in color, alutaceous, 

 glabrous as in prod?(ctus and similarly punctured, except that the 

 punctures of the head and pronotum are even more minute and 

 indistinct and those of the elytra larger and stronger; head nearly 

 similar; prothorax similar but somewhat less transverse, scarcely 

 two and one-half times as wide as its median length ; elytra two- 

 fifths longer than wide, parallel and nearly straight at the sides, 



