436 Coleopterological Notices. 



Ore «'(mi. 



With the typical representatives from Oregon I have associated 

 two females which, however, probably represent distinct but closely 

 allied species. One of these from Benicia, California, is much larger 

 and wider, with rather deeper more even pronotal punctuation, very 

 dense throughout but not coalescent, the other from southern Idaho, 

 having the pronotal punctuation quite sparse toward the middle and 

 rapidly much denser toward the sides; this specimen is also larger 

 and very convex, with the abdomen dull. In the absence of males 

 I think it better to leave these species undescribed, and the above 

 description and measurements apply only to the Oregon specimens. 



This species is not closely related to any other, but resembles 

 substriatus in some of its characters. The wings are rather well 

 developed, being but slightly shorter than the elytra. 



15 B. liiger n. sp. — Oblong-elongate, parallel, rather depressed, black ; 

 legs dark rnt'o-piceous ; integuments somewhat shining ; pubescence short, 

 fine, dark piceo-fulvous, rather abundant but very inconspicuous. Head 

 strongly transverse, feebly convex, broadly, distinctly sinuate at apex, deeply, 

 moderately coarsely and very densely punctate ; upper lobe of eyes rather 

 small ; antenna? somewhat slender, gradually and moderately incrassate 

 toward apex, third joint much shorter than the next two, seventh longer than 

 wide, eighth triangular, as wide as long, tenth slightly wider than long. 

 Prothorax about two-thirds wider than long, the apex distinctly narrower than 

 the base ; sides evenly and rather strongly arcuate throughout ; base trans- 

 verse, the sinuations feeble but distinct, the basal angles rather broadly 

 obtuse but generally not appreciably rounded ; apex extremely feebly incur- 

 vate, the apical angles distinctly and rather broadly rounded ; disk rather 

 coarsely deeply and very densely punctate throughout, the punctures very 

 coalescent longitudinally toward the sides. Scutellum small. Elytra about 

 three times as long as the prothorax and equal in width to the latter ; sides 

 parallel, scarcely visibly arcuate, parabolically and not very acutely rounded 

 behind ; disk very finely striate, the strise feebly impressed and very finely, 

 rather feebly punctate, the punctures generally separated by about one-half 

 more than their own diameters ; intervals flat, very finely, sparsely punctured. 

 Abdomen coarsely and not very sparsely punctate, the pubescence moderate 

 in length, very fine, sparse, dark in color and not at all conspicuous. Legs 

 somewhat short and robust. 



Male. — Anterior tarsi strongly dilated, the second and third joints sub- 

 equal ; intermediate much more feebly but distinctly dilated ; abdomen with 

 an elongate-oval feeble impression before the middle, in which the punctuation 

 is not distinctly denser. 



Length 4.8-5.(3 mm. : width 1.8-2.2 mm. 



