318 Coleopterological Notices, VI I. 



as the body, tlie basal joint but slightly stouter and short, very much shorter 

 than the next two, with the seta distinctly ante-apical. Prothorax fully as 

 wide as long, moderately inflated with the sides circularly arcuate anteriorly, 

 moderately sinuate posteriorly, the sides becoming straight and parallel for a 

 considerable distance from the base, the latter much more than % the max- 

 imum width and rather wider than the head ; angles right ; disk longitudi- 

 nally convex anteriorly, with the impressions very feeble ; reflexed side- 

 margins quite strong. Elytra very convex, oblong-oval, about }i longer than 

 wide, barely 3 times as long as the prothorax and 2% times as wide, the sides 

 very feebly arcuate except toward base and apex ; disk full at the humeri, 

 vertical at apex in profile, having fine strise which are deeply and coarsely 

 impressed laterally but extremely feebly so toward the suture, the punctures 

 relatively coarse, somewhat uneven in size and unevenly spaced ; intervals 

 feebly convex laterally, wholly confused and broken up abruptly in less than 

 lateral fourth. Length 14.0 mm.; width 7.0 mm. 



California (southern). 



The denselj^ pubescent pad of the basal joint of the anterior 

 male tarsus is acutelj'' triangular and occupies rather less than 

 apical half. The intercoxal plate of the mesosternum is very deeply 

 emarginate behind and rather feebly margined along the sides. 

 This species is allied to punctatus, but differs in its broader pro- 

 thorax, with the sides parallel at base and the hind angles right. 



A female from Monterey is associated with gravidus for the 

 present, though without doubt representing a species which may 

 or may not be closel}' allied. It has the prothorax similarly 

 shaped but smaller, the elytra still shorter and more evenly oval, 

 the strise stronger, the intervals more convex and with some sup- 

 plementary punctures toward tip. In the absence of the male, it 

 is impossible to say whether it should be placed near gravidus 

 or mimus. 



11. B. SUlbtilis Schaum.— Berl. Zeitsch., 1863, p. 72, pi. 3, fig. 7; Horn: 

 Trans. Am. Ent. Soc, VII, 1879, p. 183. 



Moderately elongate, black, subopaque. Head moderately 

 elongate, smooth ; gense acutely incised. Prothorax cordate, as 

 broad as long ; sides in front arcuate, posteriorly oblique with 

 feeble sinuation ; margin moderately reflexed ; disk nearly flat ; 

 impressions feeble. Elytra oval, moderately ventricose, not 

 striate but with series of rather finely impressed punctures not 

 closelj^ placed, which are somewhat confused at the sides; inflexed 

 portion sparsely punctate. Body beneath black, shining. Length 

 17-20 mm. 



