29 
lence against the subject it rested on, as to cause it to spring or 
rebound to a considerable distance. 
It is remarked, that the antennæ of some Elateres are setaceous, 
others filiform, pectinated, or serrated: they are nevertheless easily 
distinguished from every other genus by the spine at the extremity 
of the thorax, — a character scarcely any other insect possesses. 
Their larvae live in decayed trunks of trees, where they undergo 
their metamorphoses. 
GENUS XXII. CICINDELA. Tab. 8. 
Linn. Syst. Mat. page 657. 
Their antennæ are setaceous. 
The maxillae, or jaws, project considerably before the head, and 
are furnished with teeth. 
The eyes are prominent. The thorax orbicular, and margined. 
The larvae of this genus are found mostly with those of the Ca- 
rabi, in holes in the earth, and make the weaker animals their 
food. 
GENUS XXIII. BUPRESTES. Tab. 8. 
Linn. Syst. Mat. page 659. \ 
The antennæ of the Buprestides are setaceous, and as long as the 
thorax. The head is partly retracted, or drawn back within the 
thorax. 
They are divided into the following sections : 
In the first, the elytra are elevated at the suture, and decline to- 
wards the sides. 
