346 CASEY 



pressed series of rather coarse, not very close-set punctures, the 

 intervals very minutely, sparsely and confusedly punctulate ; ab- 

 domen with relatively large, strong and only moderately sparse 

 punctures medially. Length 1^.7 mm.; width 3.c;S mm. Texas 

 (Laredo) rutilans n. sp. 



7 — Form elongate-oval, convex, deep black throughout, the legs dark 

 piceo-rufous ; head finely, rather irregularly but not densely punc- 

 tate, the sides feebly converging and strongly arcuate, the apex 

 broadly sinuato-truncate ; prothorax fully three-fourths wider than 

 long, widest somewhat behind the middle, the sides evenly and 

 rather strongly arcuate from base to apex, the latter deeply sinuate 

 and fully three-fourths as wide as the base, the apical angles right, 

 not prominent, the basal obtuse and somewhat blunt ; punctures 

 fine, rounded, slightly separated, becoming very slightly larger, 

 close and more or less coalescent near the sides ; scutellum small ; 

 elytra one-half longer than wide, not quite three times as long as 

 the prothorax and very slightly wider, parallel and broadly arcu- 

 ate at the sides, the apex rather abruptly narrowed to the acutely 

 ogival tip, the punctures small, not very close-set in rather dis- 

 connected, unimpressed and feebly defined series, becoming only 

 slightly larger laterally, the intervals very minutely, sparsely and 

 confusedly punctate ; abdomen finely but rather strongly, moder- 

 ately sparsely punctate toward the middle. Length 5.7-6.7 mm. ; 

 width 2.65-3.0 mm. New Mexico (Gallup, Albuquerque and 

 Magdalena) , convexus Lee. 



Form nearly similar but rather more elongate, similar in color and 

 lustre, the head with fine separated punctures, becoming dense 

 anteriorly ; prothorax similar but with the apical angles less blunt 

 and the basal obtuse but not in the least rounded, the punctures 

 quite as fine but sparser, separated by tw^o or three times their 

 own diameters, becoming close but only slightly larger and 

 scarcely at all coalescent laterally ; scutellum much more minute, 

 only about an eighth or ninth as wide as an elytral base ; elytra 

 similar but somewhat more elongate, the interstitial punctures 

 much more minute, the series thereby rendered more distinct, 

 also being actually more regular and entire, though composed of 

 no larger punctures ; abdomen finely though strongly, moderately 

 closely and distinctly punctured medially. Length 6.0 mm. ; 

 width 2.75 mm. Locality unrecorded but probably New Mexico. 



unicolor n. sp. 



Form stouter, larger, strongly convex, less shining, black, the legs 

 dark rufous ; head rather finely, closel}^ punctured, minutely and 

 very densely anteriorly ; prothorax short, four-fifths wider than 

 long, the deeply sinuate apex three-fourths as wide as the base, 

 the angles subacute but not prolonged, the sides evenly, rather 

 strongly arcuate, becoming feebly sinuate near the apical angles, 

 the basal obtuse but not rounded ; disk slightlv wider at basal two- 

 fifths than at base, finely but deeply, closely punctured, less finely, 



