296 Natural History Bulletin. 



one-third of the segmental width and not one-fifth of the 

 length, slender. S elytra often covering the basal abdominal 

 carinas, last dorsal emarginate at tip, last ventral with a shal- 

 low' rounded impression. There are no variations in color in 

 mature specimens, the punctuation of the prothorax in the ? 

 often not as strong but evenly distributed. 



Habitat. East of the Mississippi from Canada to the Gulf. 



B. litoralis, Brendel. Ferruginous, impunctat^e, pubes- 

 cence short, abundant, legs and antenna slightly paler. 

 Length, 1.3 mm. 



Head with regular, short pubescence, disk of the vertex as 

 long as wide, clypeus and mouth protruding, labrum quadrate, 

 eyes large, prominent, tempora rounded, shorter than the eye, 

 foveas equal, large, the lateral ones only twice as far apart as 

 from the eye. Anteiuice longer than the head and prothorax, 

 the joints sub-cylindrical, third to seventh three times longer 

 than wide, eighth quadrate, ninth and tenth obconical, as long 

 as thick, the last joint proportionately wider, and twice as 

 long as thick, truncate at the base, ovate-acute. Prothorax 

 polished, with a few irregularly scattered, obsolete acu-punc- 

 tures laterally, sides very evenly arcuate, lateral foveas in full 

 view. Elytra not so much polished, impunctate, the sides 

 strongly divergent, finely and narrowly margined from the 

 base all around to the tip of the suture; disk broadly convex, 

 the lines sharp, not deep, sutural interval darker colored. 

 Abdominal with the basal dorsal segments rather short, one- 

 fourth as long as wide, carina? one-third of the length and 

 includin<i more than one-fourth of the width. Hind tibiee 

 slightly arcuate, inferior surfaces somewhat fiat, brush-like. 

 I last dorsal truncate, ventral with a longitudinal impression, 

 not circumscribed. 



Habitat. Texas to Virginia, more common in the latter state. 



B. NEVADENSis, Cascy. Piceous-brown, punctulate, elytra 

 red, legs dark brown, antennae red-brown, pubescence short, 

 coarse. Length, 1.3 mm. 



