68 HETEROMERA. 
a circular emargination on each side near the angles, with an interrupted central channel, and a rounded 
impression on each side about the middle, the lateral margins raised towards the front, the surface finely 
rugulose and densely clothed with scales; elytra wider than the thorax, the sides almost straight, slightly 
widening from the obliquely truncated shoulders nearly to the apex, with a sharp, well-defined marginal 
ridge turning abruptly inwards before the apex and nearly reaching the suture, a dorsal ridge not reaching 
the middle, the suture raised, and a number of short, oblique, or transverse ridges more numerous and 
distinct behind, the incurved part of the marginal ridge angulate near the suture, the surface densely 
clothed with scales. Beneath opaque, densely and finely punctured. 
Length 11 millim. 
Hab. Mexico (Truqut). 
One example. 
OLOGLYPTUS. 
Ologlyptus, Lacordaire, Gen. Col. v. p. 158 (1859) ; Lec. Class. Col. N. A. p. 221; Horn, Rev. Ten. 
N. Am. p. 289; Lec. & Horn, loc. cit. p. 870 (1883). 
Pactostoma, Leconte, Journ. Acad. Phil. n. s. iv. p. 19. 
Stenosides, Sol. Ann. Soc. Ent. Fr. v. p. 484 (1836). 
A few species of this genus are known from the Southern United States and Mexico ; 
I have followed Horn, Leconte, and others in adopting Ologlyptus in preference to 
Stenosides, for reasons stated by Lacordaire. 
1. Ologlyptus anastomosis. 
Asida anastomosis, Say, Journ. Acad. Phil. ii. p. 256 (18238)*. 
Pactostoma anastomosis, Lec. Journ. Ac. Phil. iv. p. 19 (1858) ; Col. Kansas, p. 18, t. 2. f. 11 
(1859) *. 
Microschatia anastomosis, Lec. Proc. Acad. Phil. vi. p. 446. 
Pelecyphorus anastomosis, Lec. Ann. Lyc. Nat. Hist. N. Y. v. p. 129. 
Ologiyptus anastomosis, Lac. Gen. Atl. t. 52. f.23; Gen. Col. v. p. 159° (1859) ; Horn, Rev. Ten. 
N. A. p. 290°. 
Hab. Norvta America®, Arkansas 1, Colorado*+, Kansas? 4, New Mexico 2.—Mexico 
(Sallé, coll. F. Bates). 
I have seen four examples from Mexico; these have the elevations of the elytra 
irregular and interrupted. 
2. Ologlyptus graciliformis. 
Stenosides graciliformis, Sol. Ann. Soc. Ent. Fr. v. p. 486, t. 12. f. 5-8 (1836). 
Hab. Mexico! (Sallé), Tehuacan, Oaxaca (Hoge), Guadalupe (Lohr). 
3. Ologlyptus canus. 
Oblong ovate, rather convex, flattened above, black, densely clothed with yellowish-brown scales, slightly 
pubescent. Prothorax broader than long, strongly rounded at the sides, almost equally narrowed in front 
and behind, very feebly sinuate before the obtuse hind angles, front angles obtuse, and a little produced, 
base truncate, the surface with scattered punctures, and an indistinct smooth central line ; elytra widened 
from the base to beyond the middle, then narrowed to apex, base narrower than the prothorax, subtruncate, 
