THE PsELAPHID2 OF NortTH AMERICA. 21 
length. Sides parallel from the obliquely transverse tempora 
to the antennal tubercles; front produced into a triangle; eyes 
conical; occiput not elevated, with a short carina at the 
base; between the eyes are two slightly impressed fovez; the 
sulcus scarcely visible; the triangular part of the front, 
anterior to the inter-antennal line, is obliquely declivous in a 
line with the porrected clypeus; the whole upper surface 
scabrous. Antenne pubescent, robust, as long as the head 
and prothorax together; first joint obconical, twice as long as 
the second and of equal width; second to fourth joints equal, 
wider than long; fifth to eighth equal, as thick as the preced- 
ing, rounded, as long as wide; ninth wider, obconical; tenth 
(4) large, globose, as wide as the last joint, which is ovate; 
tenth (?) oval, transverse, wider than the ninth; the last 
ovate, thicker than the tenth, pubescent, with short, coarse 
hair. Pa/fz with the last joint straight inside, arcuate out- 
side. Prothorax as wide as the head, length and width equal, 
widest before the middle, evenly convex from side to side, 
punctate, base twice as wide as the neck, carinate in the mid- 
dle to the deep median fovea; median sulcus deep, nearly en- 
tire, the transverse sulcus interrupted by the discal carinz and 
the acute tubercles each side of the median fovea; discal cari- 
nz entire, crenulate, and continued to the base behind the 
spinous tubercle; lateral sulcus entire, ending behind in a large 
lozenge-shaped fovea. /ytra thinly punctulate, length equal 
to that of the prothorax plus one-half the head; the width 
across the low spinous shoulders is one-sixth greater, and across 
the tip two-thirds greater than that of the prothorax. Basal 
fovee three, small, deep, conspicuous, discal lines very fine 
and sharp, butinconspicuous, not reaching beyond the humeral 
elevation; sutural lines straight, convergent, the intervals very 
regularly punctured. Addomen densely pubescent, very con- 
vex, the basal segment much depressed. at the base, the trian- 
gular margin broad at the base; the carine are one-third the 
length of the segment and one-fifth of the width; the fourth 
dorsal is longer, the last (¢) acute at the tip, not produced. 
