110 AMERICAN COLEOPTERA. 



California — Cole. Siskiyou County, six examples collected 

 by Dr. Fenyes. 



This species comes from the interior of the extreme north- 

 ern part of the State, close to the Oregon line, while specu- 

 'laris occurs near the coast just north of San Francisco. These 

 two forms have probably diverged in comparatively recent 

 times, but seem fairly well differentiated, and if not already 

 distinct are quite sure to become so. The two specimens of 

 specularis known are both females, and have the epistomal 

 margin simple or very nearly so. The type of regularis is a 

 male, having the epistoma distinctly tuberculate each side, 

 the female having the epistoma simple. Piceus is also allied 

 to these, but differs in its smaller elytra, which are also more 

 closely punctate. 



B. persimilis n. sp. 



Black, legs and antennae rufotestaceous, the penultimate joints of 

 the latter just perceptibly darker. Head and prothorax very finely 

 granulato-reticulate, the former feebly, the latter quite evidently shin- 

 ing ; elytra polished, abdomen very indistinctly though rather coarsely 

 reticulate and strongly shining. Second antennal joint nearly as long 

 as the next two, the fourth as wide as long, fifth evidently transverse, 

 tenth twice as wide as long, eleventh subequal in length to the two 

 preceding. Eyes not very prominent. Head nearly evenly convex, 

 almost impunctate, occipital fovea small but distinct, epistomal suture 

 very fine, not impressed. Prothorax slightly wider than the head, a 

 little wider than long, sides nearly straight and parallel in apical three- 

 fifths, thence straight and just perceptibly sinuate to the hind angles, 

 which are obtuse, well defined but not prominent, lateral angles some- 

 what defined, median line prominent, lateral angles somewhat defined, 

 median line fine but well impressed, punctuation rather fine, moder- 

 ately sparse. Elytra at base very slightly wider, and at apex about 

 one-fifth wider than the prothorax, about one-third longer than the 

 latter, sides feebly divergent, punctuation close and rather fine. Ab- 

 domen sparsely finely punctate, beneath more closely and less finely 

 so. Prosternal sutures strong, parallel with the margin, hypomera 

 flat, not perceptibly impressed along the side margin, slightly nar- 

 rowed at the coxal fissures, which are open and about twice as long 

 as the adjacent hypomeral width. Menturn with a well defined trans- 

 versely oval impresion occupying the basal three-fifths and the middle 

 two-fourths. Length 2.5-2.7 mm 



California — Pomona (type), Santa Clara County. Four 

 examples. 



