44 Natural History Bulletin. 



ly arcuate, nearl}- 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; fovese small, mutually live times farther distant than 

 either from the eye; circumambient sulcus broadly arcuate, 

 deeper in front. AntetDice 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. Palpi 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 m.iddle 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 foveae 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. 

 Elytra 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; 

 case of each elytron quadri-foveate, the outer one broader, 



