EPITRAGUS. 27 
finely punctured, with shallow grooves (in which the punctures are a little coarser) distinct towards the 
suture and obsolete at the sides, and near the apex a few small raised points. 
Length 123 millim. (9.) 
Hab. Mexico, Presidio (Forrer). 
One female example. Near E£. héget (2), but with the thorax proportionately 
narrower, more closely and distinctly punctured, the lateral margins more strongly 
thickened, the anterior angles longer and more prominent, and the hind angles obtuse, 
the vertex not impressed, &c. 
9. Epitragus littoralis. 
Oblong ovate, rather broad, dull obscure eneous, clothed with short cinereous pubescence. Head exceedingly 
closely and finely punctured, the epistoma produced and rounded in front; prothorax in the female about 
as long as broad; the sides sinuate and narrowing from the base forwards, the lateral margins reflexed 
and thickened, the anterior angles acute, thin, straight, and not very prominent, the hind angles 
thickened, subacute, and not prominent, the disc with a very prominent, thick, longitudinal (not oblique) 
elevation on each side, starting from near the base and reaching the anterior margin (which is not raised 
between), the elevations rounded in front, the base very feebly bisinuate, finely and very sparingly punc- 
tured, almost smooth,—in the male broader and more convex, the sides rounded, the base more strongly 
bisinuate, extremely finely and closely punctured, and with a smooth central line; elytra wider than the 
thorax, rather broad, scarcely narrowing behind, exceedingly finely and closely punctured. 
Length 13 millim. (¢ @.) 
Hab. Mexico, San Blas and Mazatlan (Forrer). 
Two examples. In the female of this species the thoracic elevations are very 
prominent and subparallel, not oblique; the punctuation of the elytra is exceedingly 
fine and close. The male is from Mazatlan, and the female from San Blas; and 
though differing considerably, I believe they belong to one and the same species, 
an ally of H. arundinis, Lec. 
10. Epitragus acutus. 
Epitragus acutus, Lec., new sp., 373, p. 108 (1866)*; Horn, Rev. Ten. N. A. p. 264 (1870)’. 
Hab. Nortu America, Kansas and Texas! 2.—Mexico 12, Monclova in Coahuila, and 
Minas viejas (Dr. Palmer). 
I refer with some doubt three examples to this species. 
11. Epitragus rorulentus. 
Oblong ovate, dull neous, clothed with very fine scattered cinereous pubescence. Head closely and finely 
punctured ; prothorax broader than long, narrowing from the base, the sides a little rounded (and sinuous 
near the front angles), the angles acute, but not very prominent, the base bisinuate, with a smooth central 
line (sometimes a little impressed, sometimes obsolete), closely and finely punctured,—the disc in the 
female raised and flattened in front, and with an elevation on each side extending to the anterior margin, 
enclosing a long scutiform excavation, and the lateral margins raised and thickened; elytra wider than 
EE 2 
