24 NatTuraAL History BuLuetIn. 
cence long, not dense. Length, 1.7 mm. Plate X., Fig. 89. 
Plate XII., Fig. 135. 
fTead convex, vertex roof-shaped, cristate at the top, smooth, 
interocular foveze deep, round, nude, circumambient sulcus 
conspicuous, margin broad, flat, strongly punctured, with the 
lateral edge carinate; the ¢ has the frontal margin arcuate- 
triangular, continuous with the lateral border, notched at the 
apex, overhanging the clypeus, which is separated from the . 
frontal margin by a deep, transverse excavation, and rises 
from the middle of the base of the labrum as a three-sided 
truncate prism with the median side concave, curved upwards; 
the sides of the clypeus are angular, the upper external angle 
retuse, in appearance as lateral horns. Antenne half as long 
as the entire margin, first joint cylindrical, thicker than the 
succeeding ones, roundly emarginate at the tip above for 
the genuflexion with the second joint, which is of the same 
width as the succeeding seven, obconical; third to eighth 
globular; ninth, thicker, transverse; tenth four times as thick 
as the ninth, globular, not perceptibly flattened on the lower 
surface and with a circular fovea near the base; eleventh nar- 
rower than the ténth, ovate, acute, obliquely impressed 
from the middle on the outside. Pa/fi yellow, last joint fusi- 
form as long as the two basal joints of the antennae. Pro- 
thorax slightly wider than long, widest before the middle, 
where it is acutely arcuate, anteriorly convergent, posteriorly 
very slightly sinuate; the base is very little wider than the 
neck, median sulcus deep, abbreviated near the neck, ending 
on the posterior fourth in a deep fovea, from which point the 
transverse sulcus branches out arcuately to the irregular 
lateral foveee; the basal elevated lobes are limited anteriorly 
by the transverse sulcus and pointed, each with a punctiform 
fovea in the middle; the discal caring are interrupted near the 
sulcus; lateral sulcus short. /yira very convex, punctulate, 
one-half longer than the prothorax, sides strongly arcuate, 
sutural lines close, straight, base tri-foveate, discal lines shal- 
low, short, or absent. Addomen narrower than the elytra at 
