THE PsELAPHID2 OF NorTH AMERICA. 293 
four times as distant. Pyrothorax more convex from side to 
side, the lateral fovez slightly less in full view from above. 
£lytra with the sutural interval not punctured. Addomen 
with the first dorsal four times as wide aslong. The structure 
otherwise resembles that of B. rubzcunda. There are no vari- 
ations in color. 
Habitat. New York, near the sea-shore. 
B. Rupicunpa, Aubé. Piceous-black, impunctured, elytra, 
legs, and antenne red, palpi yellowish. Length, 1.5 mm. 
Head including the eyes, broader than long, and, excluding 
the eyes, longer than wide from the frontal margin to the base. 
Clypeus, porrected; foveze equal, mutually three times as dis- 
tant as either from the eye, frontal margin roundly produced 
in the middle. Antenne not half as long as the body, first 
joint cylindrical, robust, second oblong, nearly as thick as the 
first. Third to seventh cylindro-obconical, nearly equal, twice 
as long as wide, eighth globular, not thicker, ninth as long as 
the third, obconical and twice as wide; tenth subglobular, 
more than one-half thicker than the ninth; eleventh as long as 
the seventh, eighth and ninth together, ovate-conical, one-half 
wider than the tenth. Pa/fz with the second joint clavate, 
pedunculate by halves, third globular, fourth twice as thick 
as the third ovate-acuminate, twice as long as wide. Pro- 
thorax broadly convex, one-third longer than the head, widest 
in the middle and more than one-fourth wider than long. The 
lateral foveze are very large, in full view from above, situated 
just behind the middle, median fovea punctiform, conspicuous. 
Lilytra convex, as wide as the prothorax across the high 
prominent shoulders; across the tip they are one-half wider, 
and the sutural length is greater by one-sixth. Base tripunc- 
tate, the sutural puncture farther from the base than the 
others, sutural interval, slightly dilated in the posterior third; 
discal lines slightly arcuate, convergent, abbreviated at the 
posterior third. Addomen broadly margined, first segment 
more than one-fourth as long as wide, last segment broadly 
emarginated at the tips, last ventral impressed. The abdom- 
