AMERICAN COMPONENTS OP"" THE TENTVRIIN^ 3O9 



those of the intervals widely spaced; alKlonien finely, sparsely 

 punctate medially. Lenj^th 6.^ mm.; width 2.95 mm. Prob- 

 ably southern California edax n. sp. 



Body decidedly less stout, convex, elongate-oval, rather shining, dark 

 blackish-castaneous, the legs rather bright rufous; head rather 

 finely, irregularly and moderately closely punctured, the sides 

 moderately converging and evenly arcuate before the eyes, pro- 

 thorax much less transverse, scarcely more than two-thirds wider 

 than long, widest behind the midille, the sides almost evenly 

 arcuate, becoming feebly sinuate near the apex, which is much 

 narrower than the base and rather deepl}' sinuate, the punctures 

 moderately large, deep and well separated, becoming much 

 coarser, dense and longitudinally confluent toward the sides; 

 scutellum moderately large, minutely punctate, subangulate ; 

 elytra nearly one-half longer than wide, obtusely ogival at tip, 

 evidently wider than the prothorax, with arcuate sides, the series 

 somewhat uneven, with more ^videly spaced punctures than in 

 eciax and becoming less confused at base ; abdomen finely, very 

 sparsely punctate medially. Length 6.4 mm. ; width 2.S mm. 

 California (Colorado Desert), — G. W. Dunn molestum n. sp. 



Body shorter and stouter than in any of the three preceding species; 

 black, the legs dark rufo-piceous, moderately shining, the entire 

 elytra opaque; head well developed, not very coarsely or closely 

 punctate, the occipital spot ill-defined, the sides feebly converging 

 but strongly arcuate, becoming subparallel for some distance be- 

 fore the eyes ; prothorax almost three-fourths wider than long, 

 the sides distinctly arcuate, more converging and straight an- 

 teriorly, the basal angles obtuse, not blunt or prominent, the 

 punctures rather coarse, perforate, moderately separated medi- 

 ally, becoming gradually coarse and dense toward the sides; scu- 

 tellum moderate, tumid, punctate; elytra short, a third longer 

 than wide, rapidly narrowed and very obtusely ogival in apical 

 two-fifths, the sides feebly arcuate, the disk distinctly wider than 

 the prothorax and barely two and one-half times as , long, the 

 punctures only moderately coarse, very strongly muricate and 

 close-set in even series laterally, with the interstitial punctures 

 less conspicuous and more widely spaced, the punctures small, 

 sparse, muricate and largely confused suturally; abdomen pol- 

 ished, finely, moderately sparsely but distinctly punctate medi- 

 ally. Length 6.6 mm. ; width 2.9 mm. California (southern). 



opacipenne n. sp. 



38 — Form rather stout, oblong, subparallel, rather convex, black, the 

 legs somewhat bright rufous ; head somewhat coarsely, perfor- 

 ately and rather closely punctate, the sides before the eyes strongly 

 converging, evenly and very moderately arcuate ; prothorax about 

 as wide as the elytra, the sides evenly, rather strongly arcuate, 

 slightly more converging anteriorly than posteriorly, the apex 

 moderately sinuate ; punctures strong, somewhat uneven and 

 rather close-set, becoming gradually much coarser and longitudi- 



