30 LONGICORNIA. 
1. Haruspex chontalensis. (Tab. 1V. fig. 12.) 
Sublinearis, castaneo-rufus, supra opacus, pilis longis erectis vestitus ; antennis quam corpus multo longi- 
oribus ; elytris apice late truncatis, angulis exterioribus longe spinosis. 
Long. 4 lin. . 
Hab. Nicazaaua, Chontales (Janson). 
The head and thorax are darker than the rest of the body, and very coarsely but 
superficially subreticulate-punctate, the latter being cylindrical, with a broad transverse 
sulcus near the base. The elytra are nearly parallel-sided, broadly truncated at the 
apex, with the sutural angle rectangular and the external one produced into a long 
sharp spine; the surface is covered with large punctures arranged closely in rows. 
The legs are long, scarcely compressed, with strongly clavate femora. Beneath, the 
pro-, mesothorax, and anterior part of the metathorax are opaque, like the upper sur- 
face ; but the posterior part of the metathorax, underside of the femora, and abdomen 
are highly polished. 
HEXOPLON. 
Hexoplon, Thoms. Syst. Céramb. p. 219. 
Gnomidolon (partim), Lacord. Gen. Col. viii. p. 330. 
Six or seven species of this elegant genus of Cerambycide are known, all Tropical-. 
American. It is distinguished from Gnomidolon solely by the long spine at the internal . 
apex of the middle tibie, a character which appears to be sufficiently constant to justify 
the retention of the genus. | 
1. Hexoplon albipenne. (Tab. IV. fig. 5.) 
Hezxoplon albipenne, Bates, Trans. Ent. Soc. 1872, p. 179. 
Hab. Nicaragua, Chontales (Belt). 
OCTOPLON. 
Octoplon, Thoms. Syst. Céramb. p. 218; Lacord. Gen. Col. viii. p. 831. 
Ibidion (partim), White, Cat. Col. Long. B.M. ii. p. 222. 
Also peculiar to Tropical America. Twenty-four species have been described. 
1. Octoplon glabriolum, (Tab. IV. fig. 6.) 
Octoplon glabriolum, Bates, Trans. Ent. Soc. 1872, p. 180. 
Hab. Nicaragua, Chontales (Belt, Janson). 
IBIDION. 
Ibidion, Serv. Ann. Soc. Ent. Fr. 1834, p. 103; Lacord. Gen. Col. viii. p. 331. 
Eighty species of the restricted genus Ididion are recorded in the Munich Catalogue. 
The range is a little more extended than that of Hexoplon, Octoplon, and other dis- 
memberments of this very numerous and characteristic American group of Cerambycide, 
