Tue PsELAPHIDZ OF NorTH AMERICA. 3 
base, half as long as the width of the segment. Sexual dif- 
ferences confined to the structure of the vertex, the antenne, 
and the last ventral segment. Palpi with the third joint glob- 
ular, fourth oblong ovate, yellow. 
V. cornutus, Brendel. Dark yellow, faintly punctulate, 
thinly pubescent with recumbent hair. 
Head square, corners rounded, eyes with coarse facets. 
Prothorax subglobose. /ytra slightly flattened at the base, 
without basal punctures, the discal lines indicated by very 
short impressions, the sutural entire, straight. First abdomi- 
nal segment one-fourth as long as wide, with a transverse 
linear bar at the base. Legs long, simple. ¢ ead, occiput 
elevated, produced into two horizontal horns which are sepa- 
rated by a deep emargination, and overhang the surface of 
the vertex. The plane of the vertex is uneven, pubescent, 
with six punctures arranged in a circle; in the frontal angles, 
posterior to the slightly elevated antennal tubercles are two 
small spinule. Axtenne ten-jointed, first joint sub-cylindri- 
cal, half as long as the frontal margin; second similar, slightly 
smaller; third short, rounded, half as long as the second; 
fourth as long and thick as the first; fifth, sixth, and seventh, 
obconical, shorter, as thick as the third; eighth and ninth 
obconical, rounded. Prothorax as long and wide as the head, 
eyes included, and with a small puncture at the base. Last 
ventral segment with a deep circular impression. 9 head 
slightly convex, eyes less prominent, vertex with two small 
punctures between the eyes, mutually three times as distant 
as either from the eye, and two smaller punctures near the 
antennal tubercles, a faint line connecting the four punctures. 
Frontal margin straight. Antenne eleven jointed, first joint 
half as long as the frontal margin, obconical; second as wide 
as the first and half as long, obconical; third to eighth small, 
nearly globular; ninth and tenth gradually larger, trapezoi- 
dal; eleventh as long as the three preceding joints, and twice 
as wide as the tenth, oblong ovate; the fourth joint of the ¢ 
shows a transverse line indicating ankylosis of two joints. 
