H. C. FALL. 



109 



not greatly unlike assimilis, but in the latter the prothorax 

 is distinctly smaller, the dorsal line obsolete, the punctuation 

 closer and the tenth antennal joint is not transverse. 



B. specularis n. sp. r 



Head and abdomen piceous, prothorax and elytra dark castaneous, 

 the latter broadly suffusedly blackish along the base and suture ; legs 

 and antennae rufous, the latter a little darker apically. Upper surface 

 strongly shining, the head very evidently so although distinctly granu- 

 lato-reticulate ; prothorax finely subobsoletely reticulate laterally, be- 

 coming quite smooth toward the middle of the disk ; elytra polished, 

 abdomen finely reticulate. Eyes only moderately prominent. Antennal 

 joints 2-3-4 gradually decreasing in length, tenth a little transverse. 

 Head impunctate except for the occipital puncture, before which the 

 vertex is distinctly tumid ; epistomal margin minutely tuberculate each 

 side, the frontal suture somewhat impressed. Prothorax distinctly 

 wider than the head, nearly as long as wide, sides very broadly arcuate 

 and parallel in rather more than apical three-fifths, then convergent 

 and feebly undulate to base, the lateral angles rather distinct, basal 

 angles scarcely defined, median line fine and lightly impressed, punc- 

 tuation very sparse, the sides rather broadly subimpunctate. Elytra a 

 little wider than the prothorax, fully as long as wide, very slightly- 

 widened behind, punctuation sparse, deep, and coarse. Abdomen 

 finely very sparsely punctate above, beneath much more coarsely and 

 closely r so. Hypomera not strongly narrowed in front, distinctly im- 

 pressed along the outer margin, the prosternal sutures distinct; coxal 

 fissures closed and about as long as the adjacent hypomeral width, 

 mentum rather strongly and broadly concave. Length 4.3 mm. 



California. Two examples collected by Dr. Fenyes at 

 Point Reyes. 



This species belongs to the semiferrnginens group, but does 

 not closely resemble any previously described. It is very 

 close to the following one, and the two may be only varietal 

 forms of one species. 



B. regularis n. sp. 



Very closely allied to the preceding in all respects except 

 the following. The vertical tumidity is very faint, occipital 

 puncture very small or obsolete, pronotum strongly granu- 

 late-reticulate throughout and much less shining, the median 

 line finer, the punctuation less sparse toward the side mar- 

 gin, elytra a little more closely punctured. 



TRANS. AM. ENT. SOC, XXXVI. MAY, 1910. 



