30 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



broadly impressed at either aide, side margins scarcely re- 

 flexed, diverging posteriorly; elytra subparallel, interspaces 

 3 and 5 about equally elevated, strial punctures regular, 



deep, subquadrate intricatus, n. sp. 



Washington (Hoquiam). 



SERIES C2. 



Length 2.4-2.6 mm. Piceous, extremely narrow, ninth joint of 

 antennae much shorter and narrower than tenth; prothorax 

 with with side margins, broadly feebly sinuate, convergent 

 posteriorly and with few coarse sharp granules, anterior 



angles broadly rounded, posterior obtuse pertenuis Casey 



California (Monterey). 



Length 2.7 mm. Piceous, broader linear, ninth joint of antennae 

 at least as long and broad as tenth; prothorax with side mar- 

 gins strongly sinuate, convergent posteriorly, the marginal 

 granules fine and very densely placed, anterior angles sub- 

 acute, posterior broadly rounded linearis Crotch 



California (Santa Inez Mountains). 



SUBSECTION B2. 



Pronotum with median impression not attaining the posterior 

 margin but with two distinct oval impressions at either side 

 and posterior to it SERIES C3 



Pronotum with median impression broad, usually attaining the 

 posterior margin, and with two short parallel acute costaa 



within it posteriorly SERIES C4 



SERIES C3. 



Pronotum subquadrate, anteriorly as wide as elytra at base or 



but faintly narrower SUBSERIES Dl 



Pronotum longer than wide, narrower than elytra, the sides 



nearly parallel SUBSERIES D2 



SUBSERIES Dl. 



Length 3.4-3.7 mm. Interspace 3 elevated from base to near 

 vertex, where it is rather abruptly terminated and replaced 

 by a shining faintly to distinctly punctured area; front of 

 head flattened and faintly punctured, becoming roughly 



tuberculated towards side margins apicalis Casey 



California (Santa Cruz County). 



Length 3.4 mm. Interspace 3 elevated throughout, sometimes 

 slightly flattened or obsolescent just at the apex; prothorax 

 subconvex, side margins straight, narrowed posteriorly, an- 

 terior angles obtusely rounded, posterior rectangular, me- 

 dian impression irregularly suboval, posteriorly a smaller 

 elongate impression at either side, surface densely evenly 

 granulate with indistinct, tortuous, feebly obtusely elevated 



