Juneigoo.] CASEY : On NORTH AMERICAN COLEOPTERA. 115 



Body smaller and narrower, the elytra parallel and only very slightly arcuate at the 

 sides, similar in coloration and vestiture to cribripennis, the antennae shorter, dis- 

 tinctly less than half as long as the body, the club shorter, more compact and 

 unusually broad, its two basal joints strongly transverse, the eighth joint very 

 small and much narrower than the seventh ; prothorax narrower and less trans- 

 verse, a third wider than long, otherwise similar, except that the sides are per- 

 ceptibly convergent and the apex distinctly, although not greatly, narrower than 

 the base ; elytra two-thirds longer than wide, obtusely rounded behind, distinctly 

 wider than the prothorax, the punctures coarse and sparse, becoming gradually 

 fine and rather close posteriorly. Length I.28-I.55 mm. ; width 0.45-0.6 mm. 

 California (Monterey) dispersa, sp. nov. 



Body still smaller and narrower, piceous, the elytra pale testaceous, with a large 

 piceous cloud on the suture behind the middle ; antennae slender, fully half as 

 long as the body, the club rather small and narrow, its two basal joints moderately 

 transverse, the eighth joint but little narrower than the seventh ; prothorax moder- 

 ately transverse, nearly as in cribripennus but more arcuate at the sides and with 

 the punctures very sparse ; elytra three-fifths longer than wide, parallel and broadly, 

 distinctly arcuate at the sides, obtuse at apex, only very slight wider than the 

 prothorax, the punctures coarse and quite sparse, notably less close-set than in 

 either of the preceding. Length 1. 1 mm. ; width 0.48 mm. California. 



puella, sp. nov. 



21 — Antennae moderately developed, rather stout, dark testaceous, the club rather 

 broad and shorter, its two basal joints moderately, though very distinctly, trans- 

 verse ; body narrowly oblong-oval, rather strongly convex, polished, blackish- 

 castaneous, the elytra slightly paler and more rufescent toward base ; pubescence 

 short, sparse and inconspicuous ; prothorax moderately developed, a little less 

 than one-half wider than long, the sides feebly convergent and broadly, almost 

 evenly, arcuate from base to apex, with a short and scarcely visible sinus just 

 behind the middle ; surface strongly, almost evenly, convex, rather strongly, 

 conspicuously and somewhat closely punctate, the basal impression quite finely 

 and feebly impressed ; elytra nearly three-fourths longer than wide, parallel and 

 very feebly arcuate at the sides, broadly and obtusely rounded at apex, distinctly 

 wider than the prothorax and about three times as long, the punctures rather fine 

 but very deep, perforate and distinct, not very close-set and clearly inclined to 

 serial arrangement. Length 1.45 mm. ; width 0.58 mm. California (Sonoma 

 Co.) castanea, sp. nov. 



Antennae rather slender, the club longer and narrow, with its first two joints not, or 

 but very slightly, transverse 22 



22 — Antennae only moderate in length, distinctly less than half as long as the body, 

 the latter rather stout, oblong-oval, moderately convex, the pronotum rather less 

 shining than the elytra, black, the legs piceous, the elytra and antennae paler and 

 piceo-testaceous ; pubescence very short and sparse ; prothorax one-half wider 

 than long, almost fully as wide as the elytra, very slightly narrowed at apex and 

 abruptly and distinctly so near the base, the median tumidity before the basal 

 impression very obvious ; punctures not coarse but deep, perforate and close-set ; 

 elytra three-fifths longer than wide, parallel and nearly straight at the sides, 

 parabolically obtuse in apical two-fifths, the punctures rather fine but deep, im- 



