50 Coleopferological Notices. 



iiifnscate ; head rather finely and strongly, pronotnm more coarsely and feebly 

 reticulate, the latter rather strongly shining ; abdomen polished, rather coarsely 

 evenly and feebly reticulate. Head slightly narrower than the prothorax, 

 feebly convex ; eyes rather large, moderately and evenly convex ; median 

 puncture very small and feeble ; vertex not tuberculate ; antenna! promi- 

 nences rather large and strong ; suture distinct ; apical angles of the epistoma 

 slightly tumid ; antennje rath(!r long and slender, gradually and moderately 

 incrassate ; second joint more robust and distinctly longer than the third, fifth 

 longer than wide, tenth very slightly wider than long, tlie eleventh one-half 

 longer than wide, rather acutely and gradually pointed. Pivtkorax scarcely 

 perceptibly narrower than the base of the elytra, just visibly wider than long ; 

 sides except in basal fourth parallel and nearly straight, then convergent 

 and perfectly straight to the basal angles, wliich are very obtuse but rather 

 narrowly rounded and definable although not distinct ; lateral angles obtuse, 

 narrowly rounded and distinct, apical nearly right, very narrowly rounded ; 

 apex broadly and very distinctly arcuate ; base very feebly so ; disk rather 

 convex, very finely and sparsely punctate, the punctures very feebly impressed 

 although distinct, very unevenly distributed ; median groove very fine, feebly 

 impressed, entire ; pubescence very easily abraded and inconspicuous. Elytra 

 as long as wide, one-fourth wider and scarcely more than one-third longer than 

 the prothorax ; sides distinctly divergent and feebly arcuate, distinctly so 

 toward apex ; surface feebly impressed near the suture almost throughout the 

 length, somewhat deeply and densely punctate, the punctures rather larger 

 and much more distinct than those of the pronotnm, sejtarated by slightly 

 more than their own diameters ; pubescence short, fine, sparse and inconspicu- 

 ous. Abdomen parallel, distinctly narrower than the elytra, finely, sparsely 

 punctate, finely and densely so beneath. Length 4.2 mm. 



California (Sonoma Co.). 



The hypomera are narrowly and strongly impressed along the 

 outer edge, the width at the apex being fully two-thirds as great as 

 at the fissures ; the latter are very short, scarcely two-thirds as long 

 as the adjacent hypomeral width, and are distinctly and rather 

 widely open ; the prosternal sutures are almost completely obsolete, 

 although traceable. The mentuni is shining, coarsely and strongly 

 reticulate and very feebly concave, the hypoglottis very short. 



Belongs near fiavipennis Lee, from which it is at once distin- 

 guishable by its narrower form, less distinct prosternal impressions 

 in front of the coxal fissures, less widely open fissures, different 

 coloration and very different sexual characters. It is described 

 from the male, the eighth segment of the abdomen being deeply and 

 narrowly incised. 



B. tenuis n. sp. — Slender, black ; pronotnm brown ; elytra paler, brown- 

 ish-llavate, very feebly clouded toward the suture near the base ; legs through- 



