8 SEEEICOENIA. 



it appears to me to be perfectly distinct. The form of the apical joint of the antennae 

 mentioned by Gory is a slight character; the serration of the margins of the apex of 

 the elytra is more important ; but there is another character, not, I believe, hitherto 

 noticed — namely, that in all the species of Psiloptera the labrum is metallic, whilst in 

 Hippomelas it is brown and leathery. 



There is at present only one species in the genus, which appears to be confined to 

 Mexico. 



1. Hippomelas saginatus. (Tab. I. fig. 10.) 



Buprestis saginata, Mannerheini, Bull. Mosc. 1837, viii. p. 65. 



Buprestis (Hippomelas) mexicana, Cast. & Gory, Mon. ii. 1841, p. 92, pi. xxiv. f. 126. 



Hab. Mexico, Oaxaca, Izucar, Puebla (Salle). 



This species varies greatly in size ; the smallest example before me measuring only 

 8 lines, the largest 14 lines. The colour varies, being sometimes very dark blue, and 

 sometimes brassy green, or tinted with a coppery hue. 



PSILOPTERA. 



Psiloptera, Solier, Ann. Soc. Ent. Fr. (1833), p. 283. 



The type of this genus is Buprestis attenuata, Fabr. (Ent. Syst. p. 187). The species 

 are found in the West Indies, in Texas, throughout Central and South America, in all 

 parts of Africa, in Turkey, Persia, India, Siam, and Timor. 



1. Psiloptera polymita. 



Lampetis polymita, Chev., Silb. Rev. Ent. v. 1837, p. 59. 



Buprestis (Latipalpis) cortesi, Lap. & Gory, Mon. ii. 1841, p. 81, t. 21. f. 108. 



Hab. Mexico, El Cameron (Salle). 



2. Psiloptera granulifera. 



Buprestis granulifera, Lap. & Gory, Mon. ii. Bnpr. p. 83, t. 21. f. 112. 

 Hab. Mexico. 



I only know this species from figure and description, unless it be the same as 

 P. monilis, Chevr., which is very probable. 



3. Psiloptera monilis. (Tab. I. fig. 11.) 



Lampetis monilis, Chevr. Col. Mex. fasc. i. sp. 1. 



Hab. Mexico, El Cameron (Salle) ; Guatemala, Escuintla and El Reposo (Champion) ; 

 Costa Rica (van Patten). 



