44 NATURAL History BULLETIN. 
ly arcuate, nearly transverse; base sinuate; occiput longitudi- 
nally impressed in the middle, much elevated on either side and 
abruptly declivous to the base; sides of the head very conver- 
gent from the posterior limit of the eye to the supra-antennal 
tubercle, the latter being rectangular outside, elevated; the 
angles are mutually distant about one-half the width of the 
head, frontal margin slightly convex anteriorly and depressed 
between the tubercles; vertex slightly convex and declivous to 
the front; foveze small, mutually five times farther distant than 
either from-the eye; circumambient sulcus broadly arcuate, 
deeper in front. Antenne as long as the head and prothorax 
together, first joint as long as the eye, robust, impressed 
above; second, half as long, globular; third smallest; fourth 
to ninth increasing in width, but not in length; ninth and 
tenth gradually a little longer, trapezoidal, twice as wide as 
long; eleventh acuminate, ovoidal, truncate at the base, one- 
half longer than wide. Pa/fz with the second joint slender, 
third triangular, fourth fusiform, equal in length to the second 
and more than twice as thick. Prothorax a little wider than 
long, widest in the middle where the sides are evenly and 
strongly arcuate; in the middle third of the length they are 
nearly straight, convergent anteriorly and posteriorly, slightly 
sinuate near the neck and base; the base is arcuate, neck a 
little less than half of the pronotal width; disk roundly convex, 
punctulate, evenly pubescent, strongly punctured around the 
neck; lateral foveze behind the middle third, deep, outside of 
them is a minute, black, sharp spine; transverse sulcus linear, 
nearly straight, the longitudinal sulcus crossing the transverse 
one, not quite reaching the base, widest one-fourth of the pro- 
notal length from the neck, where it terminates abruptly. 
Llytra slightly longer, the width of the shoulders slightly nar- 
rower, and near the tip one-third wider than the width of the 
prothorax, punctulate, evenly pubescent, the hairs on the pos-. 
terior third convergent to the end of the suture; disk convex, 
the declivous sides broad, with a longitudinal median carina; 
base of each elytron quadri-foveate, the outer one broader, 
