THe PseELAPHID@ OF NorTH AMERICA. 277 
being large and prominent. Sides anterior to the eyes con- 
vergent, slightly sinuate, supra-antennal tubercles quadrately 
rounded, the front depressed in the middle, slightly arcuate, 
as wide as the neck; frontal fovea small, interocular foveze 
twice as distant from one another as from the eye, connected 
with the frontal impression by an inconspicuous, interrupted 
depression. Occiput convex. Antenne longer than the head 
and prothorax, first and second joints cylindrical or barrel- 
shaped, subequal, third and fourth smaller, subequal, fifth 
larger than the fourth, sixth and seventh smaller, obconical; 
eighth smallest, quadrate, ninth and tenth trapezoidal, rapidly 
increasing in size. Base of eleventh as wide as the tenth, 
middie twice as wide as the second; it is twice as long as 
wide and acuminate at tip. a/fi rather long, the first joint 
and the base of the second of a much darker brown than the 
rest, the last joint fusiform, four times longer than wide. Pro- 
thorax one and one-fifth times as long as the head is wide, 
sides from the neck to the middle divergent, thence con- 
vergent, slightly arcuate to near the base, where they are sin- 
uate. Disk convex, with three small, equal, pubescent fovez 
situated in slight depressions one-fourth from the base. /y- 
tra little wider than the prothorax across the low shoulders, 
sutural length equal to this width; across the tip they are one- 
third wider. Sides divergent, slightly arcuate, the declivous 
part narrower than usual, disk with a nearly plane area in the 
neighborhood of the end of the suture and the shoulders. 
Base bifoveate, the respective lines sharply defined, the sutural 
ones parallel, the interval roof-shaped, discal lines parallel 
near the base, convergent behind the middle and abbreviated 
in the posterior fourth. Addomen longer than the elytra, 
border wide, slightly retuse, first segment twice as wide as 
long, the carine parallel, reaching the middle and including 
one-third of the segmental width. Second and third dorsals 
equal in length, not quite half as long as the first. Legs long, 
the second and third tarsal joints subequal. 
Williams, Arizona. H. F. Wickham. 
