452 Coleopterological Notices. 



robust recumbent spinulose setas. The hind wings are well devel- 

 oped, being fully as long as the elytra. 



This is a very distinct species in vestiture and was taken in con- 

 siderable abundance. 



32 B. lirevicollis Lee— Ann. Lye. Nat. Hist. N. Y., V, 1851, p. 147.— 

 Oblong-oval, rather robust, moderately convex, blackish-castaneous, rather 

 dull and alutaceous ; pubescence moderate in length, fine, recumbent, not 

 dense, dark piceo-fulvous in color and not at all conspicuous. Head rather 

 small, about one-half as wide as the prothorax, feebly convex, very densely 

 and deeply punctate throughout, the interspaces much narrower than the 

 punctures and very minutely granulato-reticulate ; epistoma large, slightly 

 paler in color, broadly sinuate at apex, the suture well-marked laterally but 

 obsolete in the middle ; eyes well-developed, the upper lobe rounded or feebly 

 subtriangular, surrounded by a rather deep and distinct impressed groove ; 

 antennae rather slender, gradually incrassate toward apex, second joint rather 

 longer than wide, third slightly shorter than the next two, fourth distinctly 

 longer than the fifth. Prothorax very nearly twice as wide as long ; sides 

 rather strongly convergent from base to apex, very evenly and distinctly 

 arcuate; base transverse, the lateral sin nations broad and very distinct, the 

 median lobe slightly more posteriorly prominent than the angles ; apex broadly 

 emarginate in circular arc ; disk very densely and deeply punctate, the punc- 

 tures rather small and slightly elongate, the pubescence exceedingly indistinct. 

 Scutellum unusually small. Elytra about two-thirds longer than wide and 

 three times as long as the prothorax, subequal in width to the latter, the sides 

 parallel and scarcely perceptibly arcuate in basal two-thirds ; disk with very 

 fine feebly impressed stria?, which are very finely and feebly punctate toward 

 the suture, but more coarsely and deeply so externally, the punctures sepa- 

 rated by from one-half more than to twice their own diameters ; intervals 

 nearly flat toward the suture, six or seven times as wide as the striae, even, 

 finely, strongly granulato-reticulate, minutely and rather densely punctate. 

 Abdomen shining, finely and rather densely punctate, the pubescence fine and 

 not at all conspicuous, shorter toward the middle. Legs rather slender, dark 

 rufo-ferruginous. 



Male. — Anterior tarsi not in the least dilated ; abdomen toward base rather 

 narrowly and extremely feebly impressed. 



Length 5.3-6.0 mm. ; width 2.6-2.8 mm. 



California; Washington State. 



The sexual characters in this distinct species are more nearly 

 obsolete than in any other which I have seen. It ma}?" be readily 

 known by its dark blackish-rufous color, fine sculpture, inconspicu- 

 ous pubescence and broad, somewhat depressed form. The sides of 

 the pronotum are narrowly and very obsoletely subexplanate, this 

 character being more obvious in some specimens than others, occa- 



