460 Coleopterological Notices. 



integuments shining ; pubescence rather dense, robust but not at all squami- 

 form, moderate in length, recumbent, pale cinereous-white and very conspicu- 

 ous. Head moderate, wider than long; sides convergent in front, the apex 

 broadly sinuate, the angles broadly rounded ; sides before the eyes broadly 

 rounded, not prominent ; surface feebly convex, densely, rather coarsely and 

 deeply punctate, the punctures rather elongate, becoming abruptly much 

 smaller and sparser on the epistoma, the interspaces narrower than the punc- 

 tures, finely, feebly granulose, wider and more polished on the epistoma ; 

 upper lobe of the eyes rather well developed, slightly longer than wide ; 

 antenna? somewhat slender, a little shorter than the head and prothorax, 

 outer joints gradually more robust, second small, subglobular, third long, 

 slender, fully as long as the next two, tenth but slightly shorter than the 

 ninth, two-fifths wider than long, the eleventh rather longer than wide, nar- 

 rowed and spongiose in apical half, very obtusely rounded at apex and but 

 just visibly narrower than the tenth. Prothorax two-thirds wider than the 

 head and nearly two-thirds wider than long, widest at basal third ; sides very 

 feebly convergent from base to apex, evenly and strongly arcuate ; base trans- 

 verse, the lateral sinuations broad and extremely feeble; apex broadly, very 

 feebly sinuate, the angles slightly obtuse, not at all rounded and not promi- 

 nent; disk transversely convex, very densely, evenly punctate, the punctures 

 moderate in size, slightly elongate, the interspaces very narrow, flat, finely 

 reticulato-granulose. Scutellum densely punctate. Elytra about three-fourths 

 longer than wide, two and one-half times as long as the prothorax and, just 

 behind the middle, very slightly wider, having very even, feebly impressed 

 rows of round, deeply impressed punctures, separated by less than their own 

 diameters and rather coarse, the intervals nearly flat, about three times as 

 wide as the strife, finely, rather densely punctate and minutely reticulate. 

 Abdome.ii rather finely and sparsely punctate, finely and sparsely pubescent. 

 Legs piceous-black. 



Male — Anterior tarsi not noticeably dilated ; abdomen broadly, feebly im- 

 pressed in the middle through the basal half. 



Length 5.0-6.0 mm. ; width 2.3 mm. 



California (San Bernardino and San Diego). 



The description is taken from the male, the female being a little 

 more elongate, with the elytra slightly longer. It is a very well- 

 marked species, forming an easy transition from the ordinary types 

 of the genus to sulcatus and hydropicus, possessing the elongate 

 third antenna! joint of the latter, with the normal structure of the 

 head. The punctures of the elytra have nearly the same coarse 

 perforate appearance as in sulcatus, but are scarcely more than one- 

 half as large, the striae being much more feebly impressed and the 

 intervals much wider. 



42 B. sulcatus Lee— Ann. Lye. Nat. Hist. N. Y., V, p. 147.— Moderately 

 robust, convex, oblong-oval ; integuments dull black, the pubescence in the 



