TENEBRIONIDyE 137 



sparse punctures, which are a third as wide as the length of the 

 scutellum, very large for this section but very feebly impressed 

 and somewhat ill-defined, without carinules except the one very- 

 near the margin joining the latter near basal fourth, which is 

 however much feebler and more disintegrated than in ditplicans; 

 abdomen nearly similar; tarsi long. Length (cf) 25.0 mm.; 

 width 10.5 mm. California (Yuma, San Diego Co.). 



esuriens n. subsp. 



Form nearly as in duplicans (9) but notably more convex and rather 

 strongly shining, black, the elytra rufo-piceous; head similarly 

 coarsely, loosely punctate; antennae nearly similar; prothorax similar 

 in size and outline but not evenly, moderately convex transversely 

 as in duplicans but, on posterior profile view, more strongly and 

 parabolically convex, the small sparse punctures a little larger and 

 the extremely minute punctulation of the interspaces more evident; 

 side margins broader and deplanate; basal impression narrower and 

 deeper; elytra (9) not quite one-half wider than the prothorax, 

 less elongate, much more convex, more oval or with more rounded 

 sides than in the two preceding and w r ith the apical lobe narrower, 

 more prominent and more abruptly formed; surface even through- 

 out, more declivous at the sides, without trace of the submarginal 

 carinule, the lateral margin similar ; legs long and slender. Length ( 9 ) 

 26.0 mm.; width 12.0 mm. Arizona (Nogales).. . . procurrens n. sp. 

 Form much more strongly obovate, the head and prothorax relatively- 

 less developed, deep black throughout and shining; head with the 

 usual strong separated punctures; prothorax scarcely more than a 

 third wider than long, evenly convex transversely, finely, sparsely, 

 often evanescently punctate; sides not broadly but strongly reflexed, 

 the basal impression very feeble and transversely diffuse; elytra 

 two-thirds longer than wide, widest well behind the middle, the 

 sides rather strongly converging and broadly rounded thence to 

 the base, obtuse posteriorly, with the. apical lobe rather abrupt and 

 moderate; surface convex laterally, rather flattened or impressed 

 suturally, smooth, with a few coarse creases, the punctures sparse, 

 rather strong, each with two fine and vestigial costules and another 

 along and close to the suture, which is flexed outwardly basally 

 joining the first costule at the basal margin; first and second costules, 

 the latter almost obsolete, joining each other posteriorly; lateral 

 margins fine but strong, ending abruptly near apical fourth ; abdomen 

 and legs as usual, the tarsi rather more slender. Length (9 ) 23.7- 

 ' 27.0 mm.; width 11.2-12.6 mm. Arizona (Huachuca Mts.) 



caliginosus n. sp. 



Form very stout and ventricose, somewhat as in the preceding but much 

 more abbreviated, deep black throughout and shining; head broadly 

 and moderately impressed transversely, deeply, rather coarsely and 

 sparsely punctate; antennae long and well developed, stout as usual; 

 prothorax transverse, nearly one-half wider than long, the subparallel 

 sides evenly, rather strongly arcuate; apex much narrower than the 

 base and deeply, circularly sinuate, the angles rather blunt ; surface 



