The Pselaphid/E of North America. 293 



four times as distant. Prothorax more convex from side to 

 side, the lateral foveas slightly less in full view from above. 

 Elytra with the sutural interval not punctured. Abdomen 

 with the first dorsal four times as wide as long. The structure 

 otherwise resembles that of B. rid)iciinda. There are no vari- 

 ations in color. 



Habitat. New York, near the sea-shore. 



B. RUBicuNDA, Aube. Piceous-black, impunctured, elytra, 

 legs, and antennce red, palpi yellowish. Length, 1.5 mm. 



//c^r/ including the eyes, broader than long, and, excluding 

 the eyes, longer than wide from the frontal margin to the base. 

 Clypeus, porrected; fovea? equal, mutually three times as dis- 

 tant as either from the eye, frontal margin roundly produced 

 in the middle. Antcnuie 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. Palpi with the second joint clavate, 

 pedunculate by halves, third globular, fourth twice as thick 

 as the third ovate-acuminate, twice as long as wide. P7'o- 

 thorax broadly convex, one- third longer than the head, widest 

 in the middle and more than one-fourth wider than longr. The 

 lateral fovea? are very large, in full view from above, situated 

 just behind the middle, median fovea punctiform, conspicuous. 

 Elytra convex, as w-ide as the prothorax across the high 

 prominent shoulders; across the tip the}- are one-half wider, 

 and the sutural length is greater bv 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. Abdomen broadly margined, first segment 

 more than one-fourth as long as wide, last segment broadly 

 ■emarginated at the tips, last ventral impressed. The abdom- 



