282 NaTuRAL History BULLETIN. 
Varies in brightness of colors and strength of punctuation. 
Habitat. From the Atlantic coast to the Missouri river, 
north of the latitude of Tennessee. 
B. pENTATA, Say. Brownish-black, minutely punctulate, 
pubescence dense, elytra and legs paler, reddish, palpi red. 
Length, 1.8mm. Plate IX., Fig. 56. 
flead with the frontal margin arcuate in the middle, the 
antennal tubercles sharply angulate laterally, occipital fovez 
mutually three times as distant as either is from the eye. 
Antenne less than one-half as long as the body, first, second 
and third joints cylindrical, gradually smaller, fourth, fifth 
and sixth a little larger, seventh and eighth again smaller, 
ninth and tenth much larger, the tenth joint is twice as long 
and thick as the ninth which is obconical and as thick as the 
second. ‘The eleventh is double the length of the tenth and 
for one-third thicker, not very acutely pointed. Prothorax 
wider than long, widest at middle where it exceeds the head, 
convex, the lateral fovez not in full view from above. Zlytra 
evenly arched, the discal lines slightly convergent near the 
base; the sutural lines are parallel, the shoulders low, not 
prominent. Sides evenly arcuate, posterior margin of each 
elytron arcuate in the middle, sinuate at the sides. Sutural 
length and humeral width equal, width at tips less than one- 
third greater. Addomen with the segment one-fourth as long 
as wide, the carine including one-fourth of the dorsal surface 
and not very conspicuous. 4 basal abdominal segment pro- 
duced in one triangular lobe, the sides of the triangle from 
the posterior lateral angle converging in straight lines toward 
the blunt pointed middle. Disk with a slight depression in 
the lateral quarters. The second segment is slightly swollen, 
perpendicular with the rest of the segments and impressed at 
the base, just beneath the lobe of the first segment with the 
usual fovea. Legs slender, posterior ¢ tibiz arcuate. 
Habitat. Atlantic States. 
B. PERFORATA, Brendel. Black, impunctate, polished, pubes- 
