310 Coleopterological Notices, V. 



wider and mucli longer than the prothorax ; humeri obliquely rounded to the 

 prothorax. Abdomen long, at base distinctly narrower than the elytra ; sides 

 straight, feebly convergent throughout ; first three segments strongly im- 

 pressed at base ; fourth and fifth equal in length. Legs moderate. Length 

 2.4-3.5 mm. ; width 0.8 mm. 



New York ; Iowa. 



The male has the fifth tergite strongly carinate almost through- 

 out its length, the sixth dorsal feebly emarginate, the emargination 

 coarsely and obtusely crenulate. The species is dedicated with 

 pleasure to Mr. Frederick Blanchard of Lowell, Mass. 



B. marginella. — Pale flavate, the head blackish ; elytra clouded with 

 piceous toward each external apical angle, the dark area always separated 

 from the apex by a distinct pale margin ; abdomen with a large subapical 

 blackish cloud ; antennae slightly infuscate toward apex ; integuments feebly 

 shining, the abdomen more polished ; head extremely minutely, sparsely 

 punctate, the prothorax finely, densely, subasperately so, the elytra more 

 strongly but still not very coarsely, densely punctate, the abdomen finely, 

 evenly and densely so ; pubescence fine, very short, not conspicuous. Head 

 orbicular, much wider than long ; eyes rather large, at one-half their length 

 from the base ; antennae rather short, about as long as the head and protho- 

 rax, third joint but little shorter than the second, outer joints strongly trans- 

 verse, closely perfoliate, tenth a little longer than the ninth, almost twice as 

 wide as long, eleventh conoidal, pointed rather longer than the two preceding. 

 Prothorax four-fifths wider than long, the sides parallel and feebly arcuate in 

 basal two-thirds, then gradually rounded and convergent to the apex ; base 

 slightly wider than the truncate apex, broadly arcuate, becoming straight 

 toward the angles which are obtuse and distinctly rounded ; disk feebly im- 

 pressed in the middle before the base, the impression not geminate. Elytra 

 distinctly transverse, slightly wider and much longer than the prothorax, 

 the humeri obliquely, strongly rounded to the base of the latter ; sides just 

 visibly divergent, very feebly arcuate ; disk slightly impressed behind the 

 scutellum. Abdomen long, at base distinctly narrower than the elytra ; sides 

 straight and feebly convergent throughout ; fifth segment much longer than 

 the fourth. Length 2.0-2.6 mm. ; width 0.7 mm. 



New York (Catskill Mts.). 



The male has a very small raised point on the fifth tergite near 

 apical fourth; the sixth also has a very small dorsal elevation and 

 has the apex broadly emarginate and obtusely crenulate. This spe- 

 cies is much smaller than blanchardi, and may be distinguished at 

 once by its finer sculpture. 



