THE PsELAPHIDA oF NorTH AMERICA. 289 
traceable to very near the posterior margin. Addomen short, 
the first segment not more than one-fourth as long as wide, 
carine very close together, about half as long as the segment 
and divergent. The male has the elytral sculpture more 
plainly marked. 
Habitat. New York, Iowa. 
Judging from the author’s description, B. facilis, Casey, 
may be identical with this species. 
B. rapians, Lec. Ferruginous, impunctate, abdominal 
lines long, ¢ last two ventrals concave, with an elongate 
medial elevation. Length, 1.5 mm. (Leconte’s description). 
Sexual variations are found in the elytral punctuation; the 
coloration is unstable; these facts, together with the vague 
statement of the carine being long, lead us to regard it as a 
doubtful species. 
B. atuantica, Brendel. Robust, elongate, impunctate, 
polished, very thinly pubescent, deep honey-yellow ferrugi- 
nous throughout; occipital impressed in the middle. Length, 
1.5 mm. 
Head comparatively smaller than in B. rubicunda, narrower 
in front of the eyes than behind them, occiput triangularly 
impressed in the middle, antennal tubercles small, prominent, 
space between them narrow, very concave, fovez as usual. 
Antenne shorter than the head and prothorax, rather robust, 
the last joint more elongate than in B. rubicunda. Palpi yel- 
low, resembling in form those of the above mentioned species. 
Prothorax one-third longer than the head and one-fifth wider 
_than long, less convex, sides more evenly rounded, the median 
fovea smaller, punctiform, in some specimens scarcely visible, 
_lateral foveee large, in full view from above. /ytra impunc- 
tate but somewhat uneven, the lustre however not being 
impaired; the shoulders are less prominent and the pubes- 
cence inconspicuous, otherwise they are like those of B. radz- 
cunda. Abdomen rather narrower, transversely less convex 
than longitudinally, the basal carine divergent, nearer together 
at base and longer than in B. raudbicunda. 
