TENEBRIONID.E 163 



having the converging sides straight or even indistinctly and very 

 broadly sinuate basally, and not feebly rounding to the base as in 

 that species, black, strongly alutaceous throughout, or with the 

 elytra feebly shining; head and prothorax rather small in size, the 

 former shallowly impressed, the punctures sparse, small and more 

 minute intermingled, becoming closer and rather coarse but still 

 uneven in size anteriorly; antennae rather short; prothorax about a 

 third wider than long, minutely, sparsely punctulate, with unusually 

 advanced and acute apical angles and parallel and evenly, somewhat 

 strongly arcuate sides, the sides somewhat broadly concave, sparsely 

 and moderately strongly punctate, the basal angles distinct though 

 obtuse; elytra strongly posteriorly inflated, three-fifths ( 9 ) to two- 

 thirds (of) longer than wide, widest at three-fifths, the sides rounded, 

 the apical lobe narrow and distinct; humeral carina very short, 

 obtusely elevated; surface broadly flattened above, creased, minutely, 

 sparsely and obsoletely punctulate, with a number of fine longi- 

 tudinal lines formed of more distinct creases usually evident. 

 Length (cf 1 , 9) 18.8-19.5 mm.; width 8.8-9.7 mm. Arizona (No- 

 gales, Sta. Cruz Co.) papagoanus n. sp. 



Form somewhat slender and convex, black and rather shining through- 

 out; head very feebly impressed, more sharply at the inner ends of 

 the oblique sutures, rather strongly but sparsely punctured, more 

 finely posteriorly; antennae with the subapical joints much less 

 elongate than in consors; prothorax a fifth to more than a fourth 

 wider than long, the parallel sides subevenly and rather feebly 

 arcuate, feebly subsinuate near the acute apical angles, the basal 

 nearly as in gliscans; surface only moderately convex, strongly 

 alutaceous, minutely, sparsely punctulate, rather gradually declivo- 

 explanate and coarsely punctured narrowly at the sides, the im- 

 pression and side margin obsolete basally; elytra fully two-thirds or 

 more wider than the prothorax (c?) to twice as wide (9 ), two-thirds 

 longer than wide, the sides rounded, moderately converging and 

 less so basally from behind the middle as usual, the surface convex, 

 very feebly and broadly impressed or flattened along the suture, 

 deeply creased and feebly rugulose, shining, finely, sparsely and 

 unevenly punctate and with the vestigial costa? more or less distinct; 

 humeral carinule moderately long and evident, irregularly sinuous; 

 abdomen shining, the legs very slender. Length (cf 1 , 9 ) 15.5-18.0 

 mm.; width 7.2-9.4 mm. Arizona (Peach Springs), Wickham and 

 Fuchs. Abundant strigosulus n. sp. 



Form still more slender and more convex, black and shining throughout; 

 head alutaceous, broadly and moderately impressed transversely, 

 strongly, more or less sparsely punctate, more closely in the male; 

 prothorax about a fourth wider than long, three-fifths as wide as the 

 elytra, convex, highly polished throughout, with the sparse minute 

 punctulation distinct, the sides moderately rounded, straight an- 

 teriorly, the angles acute; basal angles very obtuse but distinct, the 

 basal sinuations broad and moderate; sides rather narrowly and 

 abruptly declivo-explanate and coarsely, sparsely punctate to the 



