TENEBRIONID^: 109 



prothorax, three-fifths longer than wide, widest at the middle, the 

 surface with strong and abruptly formed but unusually few and 

 widely separated rugse, the interspaces slightly uneven and with 

 numerous small granuliferous punctures, each bearing a very minute 

 but evident hair; abdomen smooth, alutaceous, finely, not densely 

 punctate, with the usual small pale hairs very distinct. Length 



(d 71 ) 15.6 mm.; width 7.0 mm. Arizona abscissus n. sp. 



Body smaller, more inflated or with smaller prothorax, grayish-black, 

 opaque throughout above, alutaceous beneath; head more impressed 

 and with shorter and sparser minute hairs; prothorax similar in 

 general form and sculpture but more opaque and with less evident 

 hairs, the sides converging basally, broadly sinuate and not becoming 

 parallel near the basal angles, which are right and rather less prom- 

 inent; base with a circularly rounded deep sinus in more than median 

 third; elytra scarcely more than one-half longer than wide, two- 

 thirds wider than the prothorax, of the usual forrn, the rugae smaller 

 and more opaque, similarly abrupt and somewhat widely separated 

 but rather feeble, the very opaque hollows not distinctly punctate; 

 abdomen finely, closely punctate, the hairs very minute and much 

 less distinct. Length (d") 14.6 mm.; width 6.8 mm. Southern 



California fumosus n. sp. 



7 Elytra rather notably convex transversely from side to side 8 



Elytra nearly flat or but slightly convex 9 



8 Body black, opaque; prothorax rather longer than wide, the sides 

 broadly rounded, serrate, posteriorly subangulate; basal angles 

 right; surface variolate, toward the sides broadly subdepressed and 

 plicate; elytra twice as wide as the prothorax, rounded-oval, strongly 

 declivous posteriorly and subacute, truncate at base, the humeri 

 [not strictly the humeri, which in this entire section are broadly 

 rounded and subobsolete, but more properly the sides or ends of 

 the basal margin] dentiform; margin, and, on each, two costae the 

 internal the finer, elevated and connected transversely by irregular 

 elevated folds; epipleura nearly smooth. Length 18.7 mm. Mexico 



(Sonora) *morbillosus Lee. 



A Moderately stout, the prothorax unusually small, black, the upper 

 surface feebly reddish-black; head densely opaque, with scattered 

 pale hairs; prothorax less opaque, only just visibly wider than long, 

 the rounded sides converging basally, becoming straight and par- 

 allel for some distance before the angles, which are right, not at 

 all rounded; base with a broad and feeble sinus medially; surface 

 very unequally punctate, with large impunctate spaces sublaterally, 

 the sides deplanate and coarsely, coalescently punctate; each 

 puncture has a small but obvious pale suberect hair growing, as 

 usual, from its anterior margin; elytra nearly two-thirds wider 

 than the prothorax, three-fifths longer than wide, of the usual 

 form, the rugae rather large, swollen, moderately close and some- 

 what shining, the depressions nearly smooth but opaque, the inner 

 costa represented only by a succession of detached sinuous rugae; 

 abdomen alutaceous, finely, closely rugulose, finely punctate and 



