TENEBRIONID^E 171 



legs rather short, slender, the outer angle of the anterior tibiae everted 

 and acutely spiniform. Length (probably c?) 12.6 mm.; width 

 4.9 mm. Arizona teres n. sp. 



3 Form nearly as in the preceding, subparallel and nearly straight at 

 the sides, the body narrow, slightly larger in size, piceous-black, 

 shining; head more shining, rather deeply, transversely impressed, 

 the punctures strong but rather sparse, the hispid vestiture pale 

 fulvous; antennae distinctly less slender and darker in color; pro- 

 thorax much shorter, fully two-fifths wider than long, otherwise 

 nearly as in teres, except that the basal angles are more posteriorly 

 prominent, right and not at all blunt, the polished surface minutely, 

 sparsely punctate medially and feebly, finely impressed along the 

 median line but becoming strongly and more closely punctate 

 broadly toward the sides, the latter similar, the thin edge more 

 evidently minutely crenulate, the base at the middle not so im- 

 presso-declivous and the stiff hispid vestiture rather longer and 

 darker in color; elytra slightly wider near apical third than across 

 the humeri, which are obtusely and prominently angulate and joined 

 to the ends of the basal margin by a short oblique sinus, barely a 

 fourth wider than the prothorax and three-fourths longer than wide; 

 sides just visibly arcuate, rounding in very rapidly behind, the sur- 

 face more abruptly and strongly declivous posteriorly, strongly 

 shining, minutely, sparsely, subgranularly punctulate and with the 

 erect hispid hairs rather longer and much darker in color, flat be- 

 tween the discal ridge and the suture, the former very strongly ele- 

 vated, tending to coalesce posteriorly with the end of the ramus 

 from the marginal carina, which leaves the latter at apical third; 

 abdomen shining, finely and rather sparsely, subgranularly punctate 

 and with much shorter inconspicuous pale hairs; outer angle of the 

 anterior tibia rather everted, very acute, Length (probably cf ) 

 14.0 mm.; width 6.1 mm. Arizona (Tempe) liberta n. sp. 



Form stouter and much more ventricose, piceous-black and dull or sub- 

 opaque in lustre, rather more shining beneath; head feebly shining, 

 moderately impressed and strongly, closely punctate, the punctures 

 deeper and more abruptly perforate than in the preceding; antennae 

 only moderately slender; prothorax transverse, two-fifths wider 

 than long, as in liberta throughout but duller, alutaceous and still 

 more strongly and less sparsely punctate, the punctures toward 

 the sides becoming occasionally almost confluent and rugulose, the 

 dark hispid vestiture still closer, the similarly very abruptly and sub- 

 vertically reflexed sides not quite so wide and the basal angles more 

 obtuse; elytra one-half (c?) to three-fifths (9) wider than the 

 prothorax, about three-fifths longer than wide, evenly oval, widest 

 at the middle, with strongly arcuate sides, the apex gradually rather 

 steeply declivous but not very obtuse, the apical lobe small and 

 moderately prominent, obtuse; humeri as in liberta; surface and ves- 

 titure similar but much duller, opaque, the discal costa not so elevated 

 and not tending to unite posteriorly with the ramus, which leaves 

 the marginal carina more anteriorly or but little behind the middle; 



