406 MEMOIRS ON THE COLEOPTERA 



Eyes moderate to small, less prominent. Atlantic coast fauna 5 



3 Color rufo-piceous, the prothorax paler and more testaceous. Under 

 surface obscure rufous, the legs paler; antennae long and filiform, pic- 

 eous; head shorter than wide, three-fourths as wide as the prothorax, 

 the sulci subinterrupted; fourth palpal joint scarcely as long as the 

 third; prothorax short and transverse, fully two-thirds wider than 

 long, subevenly rounded at the sides, the latter finely reflexed, more 

 so near the basal angles as usual, the angles more than right, sharp, 

 minutely subprominent at tip; base evidently wider than the feebly 

 sinuate apex; impressions distinct, the anterior near the margin; 

 stria not coarse but deeply impressed, abbreviated in front; foveae 

 deep, remote from the sides; elytra one-half longer than wide, a 

 third wider than the prothorax (cf), slightly more (9), subevenly 

 rounded behind from a little beyond the middle; striae rather fine, 

 only feebly impressed and with small punctures internally, gradu- 

 ally becoming obsolete externally. Length (cT 9 ) 3-7~4-2 mm.; 

 width 1.35-1.6 mm. British Columbia (Stickine River), Wick- 

 ham. Sitka, Motschulsky. An ample series. . . californicus Mots. 



Color black to piceous-black, the prothorax not or scarcely at all paler 

 than the elytra, the latter faintly opalescent; legs rufous; body much 

 stouter in form 4 



4 Body stout, moderately convex; head two-thirds to three-fourths as 

 wide as the prothorax, not quite as long as wide, the sulci very long, 

 entire; last palpal joint somewhat longer than the third; antennae 

 slender, rather long, piceous, paler at base; prothorax much less 

 transverse than in the preceding, one-half wider than long, the sides 

 and angles subsimilar; base scarcely at all wider than the apex; 

 impressions and foveae nearly similar; elytra oblong-suboval, not 

 quite one-half longer than wide, two-fifths wider than the prothorax, 

 the arcuate sides moderately reflexed; striae finely punctate, rather 

 fine, feebly impressed internally, gradually obsolescent externally; 

 dorsal punctures coarse and conspicuous. Length (d 71 9 ) 4.3-4.7 

 mm.; width 1.45-1.75 mm. California (Siskiyou Co.) and Van- 

 couver Island. Unalaska Island, Dejean chalybeus Dej. 



Body distinctly more abbreviated and broader, deep black above, pice- 

 ous beneath, the legs bright rufous; head three-fourths as wide as 

 the prothorax, about as long as wide, the sulci subinterrupted; palpi 

 and antennae bright rufo-testaceous throughout, in structure some- 

 what as in chalybeus; prothorax broader, nearly two-thirds wider 

 than long, the sides subsimilarly rounded and basally feebly oblique 

 and straighter, the apices of the basal angles minutely prominent; 

 impressions and foveae nearly similar; base much broader than the 

 moderately sinuate apex; elytra notably shorter and broader, with 

 much more rapidly and broadly obtuse apex, parallel, with feebly 

 arcuate sides, a third longer than wide, two-fifths wider than the 

 prothorax; striae moderate, distinctly though not coarsely punctured, 

 evident throughout the width, gradually more impressed, though 

 not very deeply, toward the suture; three dorsal punctures not so 

 coarse as in chalybeus; opalescent lustre scarcely evident. Length 



