TENEBRIONID^E 1 1 1 



becoming coarse and closer near the base, very broadly explanate, 

 coarsely, closely, transversely rugose laterally, the edge narrowly 

 and very feebly subreflexed; elytra about one-half wider than the 

 prothorax, suboblong, only moderately elongate, a little shorter and 

 broader in the female, the costa distinct, the inner costa distinct 

 though much feebler, finely sinuous, joining the median costa pos- 

 teriorly; rugae very numerous, small, strong and close-set, the inter- 

 spaces not evidently punctate; abdomen finely but strongly punctate, 

 rather closely so medially in the female. Length (cf , 9 ) 15.5-16.0 

 mm.; width 7.5-7.9 mm. Arizona (in various southern localities). 



piceus n. sp. 



A Similar to piceus but darker, sometimes virtually black and always 

 more opaque, also differing much more in the disparity of the 

 sexes ; prothorax similarly large but less arcuate at the sides, parallel 

 for some distance from the basal angles, the base and angles 

 similar; surface more densely opaque, more closely and con- 

 fluently punctate; elytra oblong, with feebly arcuate sides (cf), 

 or oblong-oval with arcuate sides and rather less flattened surface 

 ( 9 ) ; rugae small, very numerous and close-set, their crests shining, 

 elsewhere more opaque, the costse nearly as in piceus, the inner a 

 little less evident and obsolete before attaining the median costa 

 posteriorly; abdomen as usual. Length (cf, 9) 15.5-17.0 mm.; 

 width 7.4-8.6 mm. Arizona (San Bernardino Ranch, Cochise Co.), 



F. H. Snow crudelis n. subsp. 



Form elongate, much more slender, the elytral humeri more obliquely 



and feebly rounded and obsolete or virtually so 10 



10 Deep black, opaque; head feebly impressed, with very sparse fine 

 punctures and evident subdecumbent pale hairs as usual; prothorax 

 from a fourth to a third wider than long, three-fifths to nearly three- 

 fourths as wide as the elytra (cf ), or relatively slightly smaller (9 ), 

 of the usual form in this section, the converging sides basally be- 

 coming parallel for a slight distance before the basal angles, which 

 are right; base with a very feeble and indefinite median sinus; surface 

 densely opaque, rather coarsely, deeply, confusedly and closely 

 punctate, broadly explanate laterally, transversely rugose along the 

 side margins, which are very feebly reflexed; elytra nearly three- 

 fourths longer than wide, in sculpture nearly as in crudelis, densely 

 opaque, the summits of the very numerous rugae only feebly shining, 

 the depressions finely, closely uneven; abdomen finely punctate and 

 with the usual very small pale hairs. Length (cf, 9) 14.0-16.3 

 mm.; width 6.0-7.6 mm. Arizona (San Bernardino Ranch, Cochise 



Co.), F. H. Snow snowi n. sp. 



Dark rufo-piceous, much less opaque and more elongate, with relatively 

 larger prothorax and longer, as well as decidedly thicker, legs; 

 head with the stout decumbent pale hairs longer and much more 

 numerous; prothorax (cf ) fully three-fourths as wide as the elytra, 

 a third wider than long, nearly as in snowi but with the close-set 

 punctures more equal in size throughout and with the small pale 

 hairs more distinct; elytra slightly more elongate, fully three-fourths 

 longer than wide, flatter, widest somewhat behind the middle, the 



