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 foveae, not 

 in full view from above. Elytra 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. Abdomen very convex, the basal 

 segment one-third as long as wide, elevated in the middle 

 posterior carinas including two-fifths of the \vidth. La-st 

 dorsal of the 6 notched for the reception of a corresponding 

 part of the last ventral which bears on oval impression. 

 Penultimate ventral with a transverse impression. ? antennas 

 more slender, elytra shorter, the divergent carinas more exposed 

 to view. 



Habitat. New- York. This species was confounded with 

 B. p7'opingua until the several differences in the antennae of 

 the latter were recognized. The figure of B. scabra (Plate 

 IX., Fig. 62) will give a good idea of the outlines of the 

 species. 



B. PROPiNQUA, Lcc. Piceous-brown, abdomen paler, legs 

 and antennae yellowish-brown. Body elongate, pubescence 

 long. Length, 1.4 mm. Plate IX., Figs. 63, Figs. 66, a, b, 

 c, antennae. 



Head 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 fovete very near the prominent 

 eyes. Y-shaped, elevation pronounced, not contiguous with 

 the frontal tubercles. 



AnteniK^ 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; 



