Coleopterological Notices, VII. 579 



but thicker and more pubescent, longer than wide ; joints three to seven sub- 

 equal, elongate and closely joined; eighth a little shorter and narrower; ninth 

 distinctly thicker, obtrapezoidal, fully as long as wide; tenth similar in form 

 but much larger, rather longer than wide, with a large and very deep circular 

 perforate fovea on the under surface, extending from the base to the middle, 

 the surface thence to the apex more oblique than the corresponding surface ex- 

 ternally ; eleventh as long as the preceding two, as thick as the tenth, ob- 

 liquely flattened externally toward tip, the latter acute. Prothorax nearly as 

 long as wide, widest and rather prominently lobed at the sides just before the 

 middle, sinuately narrowed toward base, with the usual three fovese and two 

 spiniform processes near the base, the arcuate impressions before the processes 

 almost obsolete, the lateral longitudinal impressions deep, sulciform and almost 

 entire, the median groove deep and extending almost to the apex ; longitudi- 

 nal carinse very fine and feeble. Elytra nearly as long as wide, V^ longer and 

 % wider than the prothorax, the sides only moderately divergent and arcuate, 

 humeral plica elongate and strong but not spinose, the impression broad, 

 rapidly evanescent; three basal foveae deep and perforate. Abdomen distinctly 

 narrower and very much shorter than the elytra, the carinse very broad at 

 base, rapidly finely acuminate, 3^ as long as the segment and separated by 

 nearly 3lj of the discal width at base, the impressions deep. Pygidium moder- 

 ately convex, somewhat transverse, the lower edge with a minute sinuation 

 receiving a small apical lobe of the last ventral, the surface adjacent to the 

 sinus wath a narrow, arcuate and extremely deep transverse excavation, the 

 upper limiting line of which is an acute edge. Metasternum swollen in the 

 middle, the slope toward the iiitercoxal edge rapid and densely pubescent. 

 Legs rather long and slender, the femora swollen ; tarsi all slender. Length 

 1.8 mm. ; width 0.68 mm. 



Canada (Ottawa — Mr. W. H. Harrington) ; Wisconsin (Bay- 

 field — Mr. Wickham); Pennsylvania (Westmoreland Co. — Mr. 

 Schmitt). 



The male characters of the venter consist simply of a shallow 

 impression of the last segment, the lateral limits of which are 

 tumid, prominent and setose. The legs do not seem to be modi- 

 fied sexually. The three males before me represent a species 

 which may be placed nesir frontalis. I have not seen the female. 



B. caTicornis n. sp. — Eather slender, strongly convex, polished and im- 

 punctate throughout, pale and bright rufous in color, the abdomen but little 

 darker and more brownish ; pubescence moderate in length and coarseness, pale, 

 rather abundant and strongly recurved, ffead but just visibly wider than the 

 prothorax, about as long as wide, the eyes small but convex and prominent, at 

 fully 3^ more than their own length from the base, the base circularly and 

 continuously rounded behind them, the tempora very convergent; fovese rather 

 small, nude, near basal third, very widely separated, the ambient sulcus deep 

 and well defined except at the middle anteriorly, where it merges with the 



