126 LONGICORNIA. 
tato, medio fascia aurantiaca maculisque septem nigro-nitidis transversim positis, tuberculo laterali 
minuto ; elytris prope basin tuberculis rotundatis plurimis fere aggregatis, deinde usque ad apicem punc- 
tatis, punctis singulis in macula singula nigra sitis, maculis aurantiacis rotundatis versus basin conflu- 
entibus ; metasterno obscure cano, episternis aurantiacis. 
Long. 5 lin. 9. 
Hab. Mexico, S.W. Yucatan (received from Dr. Horn, Philadelphia). 
Belongs to the same section as 0. impluviata, and apparently closely allied to O. minuta 
(Thoms.) from Cayenne. The elytra are relatively short compared with the head and 
thorax. 
8. Oncideres scitula. 
Angustissima, elongata, minus convexa, rufo-fusca, capite thoraceque miniaceo vittatis, elytris guttis rotundatis 
e tomento miniaceo numerosis, in ordines utrinque quatuor dispositis; pedibus miniaceis; antennis 
fuscis, articulis a tertio basi griseis; corpore subtus griseo, lateraliter miniaceo maculato; tuber- 
culis antenniferis pilosis; thorace medio utrinque minute tuberculato, postice haud angustato; elytris 
punctulatis. 
Long. 7 lin. 
Hab. Mexico, Oaxaca (Sallé). 
Distinguished from the allied O. cingulata (Say) and other similar species, by the 
thorax being of the same width behind as before the lateral tubercle, and by the thicker 
and more raised tomentum of the red spots of the elytra. 
TARICANUS. 
Taricanus, Thomson, Physis, ii. p. 73. 
A genus peculiar, as far as at present known, to Mexico, and containing only one 
species :— 
1. Taricanus truquii. (Tab. IX. fig. 6.) 
Taricanus Truquii, Thomson, loc. cit. p. 74°. 
Hab. Mexico 1, Puebla (Sal/é). 
PERIERGATES. 
Periergates, Lacordaire, Gen. Col. ix. p. 679. 
Peculiar, as far as at present known, to Guatemala. The following is the only 
recorded species. 
1. Periergates rodriguezi. 
Pertergates Rodriguezi, Lacordaire, loc. cit. p. 679, nota!. 
Hab. Guatumata (Rodriguez); Zapote, San Gerdnimo (Champion). 
