LONGICORNIA. 243 
GNAPHALODES (p. 17). 
Gnaphalodes trachyderoides (p. 17). 
To the localities given, add:—Mexico, Tehuantepec (Sumichrast); Brivisn Hon- 
DuRAS, Belize (Blancaneauz). 
Var. G. inermis. Thorax inermis. 
Hab. Mexico, Presidio (forrer). 
One male example, differing in no respect from the type but by the complete 
absence of the lateral spines of the thorax. 
PERILASIUS (p. 17). 
Perilasius championi (p. 18). (Tab. XVII. fig. 2.) 
We now give a figure of this species. 
CHION (p. 18; to follow the genus Perilasius). 
Chion, Newman, Entomologist, 1841, p. 23; Lacordaire, Gen. Col. viii. p. 285. 
Cerasphorus (partim), Serville, Ann. Soc. Ent. Fr. 1834, p. 11. 
A genus peculiar to North America, and not previously recorded as passing the 
southern boundary of the United States. Oné variable species only is known. 
1. Chion garganicus. 
Stenoéorus gargaunicus, Fabr. Syst. Ent. p. 178. 
Cerambyx garganicus, Oliv. Ent. no. 67, p. 39, t. 15. fig. 105. 
Hab. Norta Amertca.—Mexico, Northern Sonora (Morrison), Guajuco in Nuevo 
Leon (Dr. Palmer). 
In the Mexican examples, at least the females, the external apices of the antennal 
joints 8-6 are more produced than in specimens of the same sex from Texas and South 
Carolina, with which I have compared them; they are not simply acute, but are pro- 
longed into distinct spines. But, besides this variety, the following form also occurs in 
Mexico and has the appearance of a distinct species :— 
Var. (?) Chion ochraceus. Elytra clare fulvo-ochracea, immaculata. Minus depressus, elytris relative brevioribus. 
Long. ll lin. ¢. 
Hab. Mexico (ex coll. A. Turner). 
This is not the similarly coloured variety of C. garganicus described by Fabricius as 
Stenocorus rusticus, the type specimen of which I have eXamined. The insect has a 
moré cylindrical form, the elytra being mote convex and relatively shorter. 
212 
