76 LONGICORNIA.. 
ring of red on the femora and the presence of a red spot on the sides of the thorax 
under the tubercle. But the antenne are twice the length of the body, the terminal 
joints especially being slender and greatly elongated, the eleventh as long as the ninth 
and tenth taken together. The thorax differs also in being covered on the sides and 
under surface with a dense and coarse punctuation. This sexual difference and the 
very prominent mesosternum appear to be distinctive characters of the group of 
Crioprosopt having polished metallic elytra; and the name Callona given by Waterhouse 
might be conveniently applied to it. The closely allied C. viridipennis, Latreille, from 
Colombia, was included in Crioprosopus by Dupont. 
STENASPIS. 
Stenaspis, Serville, Ann. Soc. Ent. Fr. 1834, p. 51; Dupont, Mag. Zool. 1838, Monogr. Trachyder. 
p. 50; Lacordaire, Gen. Col. ix. p. 171. 
This genus is here restricted, according to the intention of the founders, to those 
species in which the prosternal process is produced at its upper edge and presents a 
vertical face to the mesosternum. Four species are known, restricted to Mexico and 
the bordering countries. 
1. Stenaspis verticalis. 
Stenaspis verticalis, Serville, Ann. Soc. Ent. Fr. 1834, p. 52; Dupont, Mag. Zool. 1838, Cl ix. 
p. 7, t. 216. f. 1. 
Hab. Mexico, Cuernavaca (Hége).—Norrn America, Arkansas (Leconte). 
2. Stenaspis castaneipennis. 
Stenaspis castaneipennis, Dupont, Mag. Zool. 1838, Cl. ix. p. 52, t. 216. f. 27. 
Hab. Mexico 1, Oaxaca (Fenochio). 
3. Stenaspis solitaria. 
Cerambyx solitarius, Say, Journ. Ac. Phil. ii. 1823, p. 410°. 
Stenaspis unicolor, Dupont, Mag. Zool. 1840, Cl. ix. p. 11, t. 881. 
Hab. Mexico, Sonora.—Norru America, Arkansas 1, Kansas, Texas (Leconte). 
4, Stenaspis plagiata. 
Stenaspis plagiata, C. O. Waterhouse, Trans. Ent. Soc. 1877, p. 127. 
Hab. GUATEMALA, near the city (Salvin). 
DELTASPIS. 
Deltaspis, Serville, Ann. Soc. Ent. Fr. 1834, p. 7 ; Chevrolat, Journ. of Entom. i. p. 247. 
Eudowilus (Dej.), Lacordaire, Gen. Col. ix. p. 172. 
As far as is at present known this genus is confined to Mexico. It is doubtful, 
