340 INSECTA. 



of the thorax sinuousj undulated whitish streaks, formed by 

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

 leaves of which it feeds. 



Aphanistiuus, Lat. 



The antennae suddenly terminated by a clavate, oblong, compress- 

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

 joint of the palpi somewhat thicker and ahnost oval; space between 

 the eyes excavated as in Trachys. 



Two or three species are known, all linear, and very small(l). 



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, like those drawn from 

 the tarsi and palpi, announce that these Insects form the passage 

 from this tribe to the sccond(2). 



Or that of the Elaterides, which only differs essentially 

 from the first in the posterior stylet of the prsesterniim, which 

 terminates in a laterally compressed point, frequently somewhat 

 arcuated and unidentate, that sinks at the will of the animal into 

 a cavity in the pectus, situated immediately above the origin 

 of the second pair of legs: and in the circumstance, that these 

 Insects when placed on their back have the faculty of regain- 

 ing their original position by bounding upwards. Most of 

 them have mandibles emarginated or cleft at the end, palpi 

 terminated by a triangular or securiform joint^ much larger 

 than those which precede it, and the joints of the tarsi entire. 

 This tribe only comprises the genus 



Elater, Lin. 



The body is usually narrower and more elongated than that of the 



(1) Bupresfis emarginafa, Fab.; Oliv., lb. X, 116; Germ., Faun. Insect. Europ., 

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



(2) Melasis buprestoides, Oliv., II, 30, 1, 1; — Melasis elateroides, lllig., differing-, 

 according' to him, from the Elater buprestoides, Lin. 



