COLEOPTERA. 423 



of burnished steel ; elytra tridentate at the extremity, cupreous 

 in the middle, bronze-green on the margin, with impressed 

 puncta, and elevated lines and rugae. Cayenne. 



B. affinis. Fab.; B. chrysostigma, Oliv., lb., VI, 54. Bronze 

 above, brilliant cupreous beneath ; elytra serrated at the point, 

 with three elevated longitudinal lines, and two golden impres- 

 sions on each. France. 



B. viridis, L. ; Oliv,, lb., XI, 127. About two lines and a 



half long ; linear ; bronze-green ; elytra entire and dotted. On 



the trees in France (a). 



Fabricius has separated from the true Buprestides those in which 



the body is shorter, wider in proportion, and almost triangular ; the 



front concave, thorax transversal and lobate posteriorly ; where the 



tarsi are very short and the pellets broad. The five last joints only 



of the antennae here form the teeth of the saw, the preceding ones, 



with the exception of the two first, being small, almost granose, or 



obconical ; the two first are much stouter. These species compose 



the genus Trachys *, one of which is 



B. minnta, L. ; Oliv., lb., II. 14. Black underneath; cupre- 

 ous-brown above ; middle of the front indented ; posterior margin 

 of the thorax sinuous ; undulated whitish streaks, formed by 

 transverse hairs, on the elytra. Common on the Hazel, on the 

 leaves of which it feeds. 



Aphanisticus, Lat. 



The antennae suddenly terminated by a clavate, oblong, compressed, 

 and slightly serrated club, formed by the four last joints ; last joint 

 of the palpi somewhat thicker and almost oval ; space between the 

 eyes excavated as in Trachys. 



Two or three species are known, all linear, and very small f. 



Sometimes the antennae are strongly pectinated, on one side, in the 

 males, and deeply securiform in the females ; the joints of the tarsi 

 are almost cylindrical and entire, the antennae terminated by one 

 much thicker than those that precede it, and nearly globular. The 

 jaws terminate in a single lobe. 



Melasis, Oliv, 



The body cylindrical, and the posterior angle of the thorax pro- 

 longed into an acute tooth, characters, which, in those drawn from 



* See the other species quoted by Fabricius, Syst. Eleut., II, 218; and as 

 to the divisions that are to be established in the genus, see Schoenherr, Insect. 

 Synon. 



t Buprestis emargimta, Fab.; Oliv., lb. X, 116; Germ., Faun. Insect. Europ., 

 Ill, 9; — Bup. Uneola, ejusd., lb., 10. 



(a) Add of this beautifvil and numerous genus the B. confluenia, lateralis, airo- 

 purpurcus, 6-guftafa, gibbicoUis, granulata, viridicornis, geminata, divaricata, longipes, 

 cyanipcs, cutnpestris, &c. &c., for the descriptions of which, see Say's paper on 

 Coleopterous Insects, &c. ; Jour. Acad. Nat. Sc. of Philad. Ill, p. 159, ctseq. — 

 Eng. Ed. 



