298 NATURAL History BULLETIN. 
Seventh quadrate, smaller, eighth to tenth transverse, increasing 
in width, trapezoidal, more loosely jointed than the preceding 
which are compact; eleventh ovoid, one-half thicker than the 
tenth and twice as long as wide. Prothorax very convex, 
brightly shining, slightly wider than long, lateral fovee, not 
in full view from above. /ytra short, one-half longer than 
the pronotum, as wide as the pronotum across the shoulders, 
two-thirds of this width near the tip: discal lines deep parallel, 
turned outward posteriorly. Addomen very convex, the basal 
segment one-third as long as wide, elevated in the middle 
posterior carine including two-fifths of the width. Last 
dorsal of the ¢ notched for the reception of a corresponding 
part of the last ventral which bears on oval impression. 
Penultimate ventral with a transverse ‘impression. @ antennz 
more slender, elytra shorter, the divergent caring more exposed 
to view. . 
Habitat. New York. This species was confounded with 
B. propingua until the several differences in the antenne of 
the latter were recognized. The figure of &. scabra (Plate 
IX., Fig. 62) will give a good idea of the outlines of the 
species. 
B. pRopInqua, Lec. Piceous-brown, abdomen paler, legs 
and antenne yellowish-brown. Body elongate, pubescence 
jong: Length, 1.4. mm.: Plate TX., Figs./63, Figs: G6," aoam 
c, antenne. 
ffead impunctuate, trapezoidal, tempora arcuate, longer 
than the eye, frontal tubercles oblique, not prominent, rounded, 
frontal margin slightly arcuately produced in the middle, 
inter-tubercular space triangularly depressed, containing the 
_circular frontal fovea; lateral foveee very near the prominent 
eyes. Y-shaped, elevation pronounced, not contiguous with 
the frontal tubercles. 
Antenne of female with joints one to four rapidly increasing 
in width, fifth nearly twice as long as the fourth, the succeed- 
ing three equal in width, gradually shorter. Ninth and tenth 
trapezoidal, the latter at tip double the width of the eighth; 
