THE PsELAPHID2 OF NortTH AMERICA. 241 
prominent, finely facetted; tempora convergent, little longer 
than the eyes, not convex, frontal tubercles rather short, not 
constricted posteriorly, scissure sharp and ending in a small 
elongate fovea one-fourth the length from the frontal margin. 
There are two small, round, well-defined fovez in a line with 
the anterior quarter of the eyes, separated from each other by 
twice as great a distance as from the eyes. Clypeus with the 
anterior margin rounded, labrum bilobed. Antenne not quite 
half the length of the body, the first joint cylindrical, arcuate 
below, as long as the eye and half as thick; second joint 
quadrate, as wide as the first, third to fifth gradually smaller, 
quadrate, sixth to tenth gradually wider, tenth as wide as 
the second, twice as thick as long. The last joint is pear- 
shaped, compressed, half as long as the preceding portion of 
the antennz, and one-third from the apex the width is equal 
to the length of the first three joints together; pubescence 
sparse, surface faintly punctulate. Pa/f7z with the first joint 
small, cylindrical; second fusiform; third irregular globular; 
fourth longer than the preceding joints together, cylindrico- 
fusiform. Prothorax as wide as long, widest a little before 
the middle, very convex transversely, sides evenly arcuate, 
becoming straight and convergent near the base. One-fifth 
from the base is a small triangular fovea connected with the 
very small, rounded, lateral foveze by a well defined and very 
thin slightly arcuate line. /ytra one-fifth longer than the 
pronotum, length equal to the humeral width, shoulders -with 
small, not prominent humeral tubercles, one-fourth wider 
across the middle than the length of the suture, disk convex. 
pubescence coarser than on the anterior part of the body. 
Sutural striz well defined anteriorly originating from trans- 
‘verse basal impressions and obsolete posteriorly; discal im- 
pressed line short, foveate at base, becoming obsolete one- 
third before the middle. Dorsal segments subequal in length, 
the basal one-fourth as long as wide, wider behind, convex, 
slightly impressed at the sides of the base, and, compared 
with the other species of this group, very moderately mar- 
