THE PsELAPHIDA@ OF NorTH AMERICA. 83 
than the tenth, ovate-acuminate, truncate at the base. Pvro- 
thorax with a very fine, nearly entire median sulcus, and 
small, acute, basal spines. #/yira@ narrow-shouldered, the 
humeri not prominent, space between the sutural lines punc- 
tulate. Addomen narrower at the base than the elytra, the 
foveze nearly equal in width, ventral foveze large, square; 
anterior tarsi with the larger claw cleft; @ unknown. This 
species ranks next to B. virginia. 
Habitat. Southern Pennsylvania. (H. Ulke.) 
Since the descriptions of Aatrzs: were in press we have 
received specimens of B. fovercornis Cas., and B. punctifrons, 
Cas., and both species seem entitled to specific distinction. 
The student is therefore requested to insert in the synopsis 
after B. globosus the following: 
Clypeus conical, not reflexed laterally ; pronotum feebly sulcate. 
Tenth antennal joint largerin the ¢thanin the 2 - fovetcornis. 
Tenth antennal joint of g not larger than in the 9 - punctifrons. 
B. FOVEICORNIS, Casey. Red,impunctate; pubescence lor 3, 
sparse. Length 1.9 to 2.0 mm. 
Head as wide as long, face nearly perpendicular to the ver- 
tex, which latter is wider than long, not very convex, carinate 
in the middle of the occiput and at the sides, fovea nude, 
lateral grooves arcuate, dividing the thinly punctured margin 
in the middle; clypeus large, conical, not reflexed at the sides, 
sub-frontal groove remarkably inconspicuous. Axtenne with 
the first joint sub-cylindrical, as wide as the ninth, and twice 
as long as wide; second, one-third shorter and narrower, third 
to seventh longer than wide, gradually shorter, eighth as long 
as wide, ninth as long as the eighth, transverse; tenth 
much wider, globose when viewed from above, flattened 
below, with a perforate fovea, which in some specimens is very 
large. Eleventh wider than the tenth and as long as the three 
preceding together. Prothorax with the fovee and sulci 
deep, the median sulcus short, disappearing behind the middle, 
or very much shorter; basal spines small, discal carinz rather 
