358 CASEY 



subeven unimpressed series, those of the intervals very minute, 

 sparse and feeble, generally uniserial laterally ; abdomen smooth, 

 polished, finely, sparsely punctate medially. Length 5.7 mm. ; 

 width 2.5 mm. California (San Francisco) lucidulus n. sp. 



Body nearly similar but less stout, duller and alutaceous in lustre, 

 deep black, the legs piceous-black ; head smaller, scarcely as wide 

 as an elytron, nearly similar in form and sculpture ; prothorax 

 almost similar in form but less full before the middle, with the 

 similarly moderately arcuate sides not becoming straight basally, 

 the angles very obtuse, the anterior angles not so deflexed but 

 obtuse, the apex similarly moderately sinuate and a little nar- 

 rower than the base, the punctures similarly very fine but more 

 close-set, becoming gradually rather coarse though scarcely closer 

 toward the sides; scutellum small; elytra nearly similar in form 

 and sculpture but subopaque, with the interstitial punctures more 

 distinct and the series much more obsolete toward apex ; abdomen 

 alutaceous, very finely, sparsely punctate medially. Length 5.6 

 mm.; width 2.4 mm. California (Mt. Diablo)... otiosus n. sp. 



12 — Color black, the legs clear but dark rufous, the body parallel. 



Rather stout, moderately convex, somewhat shining, the head 

 not very coarsely but deeply and very closely punctured, broadly 

 arcuate from side to side at apex, the sides only moderately con- 

 verging, strongly arcuate, the third antennal joint fully twice as 

 long as wide ; prothorax but little more than one-half wider than 

 long, the sinuate apex very distinctly narrower than the base, 

 widest near the middle, the sides rather strongly and subevenly 

 arcuate throughout but more converging apically, the basal angles 

 very obtuse, the apical slightly obtuse and narrowly rounded, the 

 punctures rather fine but deep, rather well separated but becoming 

 gradually moderately large, close and somewhat longitudinally 

 confluent laterally ; scutellum well developed, transverse, narrowed 

 toward base ; elytra short, barely two-fifths longer than wide, two 

 and one-half times as long as the prothorax and only slightly 

 wider, perfectly parallel, with nearly straight sides rounding only 

 very near the base, abruptly, obtusely rounded in barely apical 

 third, the punctures small, rather close-set in extremely imperfect 

 series, those of the intervals fine but distinct, confused laterally, 

 almost as large as those of the broken series ; abdomen polished, 

 somewhat coarsely, not very sparsely, conspicuously punctate. 

 Length 5.6 mm.; width 2.5 mm. Colorado (Canyon City), — 

 H. F. Wickham implicans n. sp. 



Color piceous or paler, the elytra generally paler than the anterior 

 parts, the body oval 13 



13 — Form rather stout, strongly convex, shining, castaneous, the 



under surface and legs paler and rufous ; head somewhat coarsely, 

 very deeply and closely punctate, broadly arcuate at apex, the sides 

 onl}' feebly converging and moderately arcuate, the third antennal 

 joint fully twice as long as wide ; prothorax about three-fifths 



