22 
The thorax is flat, and margined, forming as it were a shield for, 
and at the same time entirely concealing the head. 
The larvæ of the Cassida feed on the leaves of plants, and con- 
ceal themselves under an arched cover, formed of their own dung, 
and supported on their forked tail. 
GENUS X. COCCINELLA. Tab. 12 and 13. 
Linn. Syst. Nat. page 579. 
Their antennæ are subclavatecl, or a little thicker towards the 
end, the front of which is quite flat : the palpi are shaped like a 
club, the last articulation in form resembling a heart. 
The body is hemispherical : the thorax and elytra are margined : 
the abdomen flat. 
The eenus of Coccinella is subdivided into sections, from the 
following circumstances : 
1. Those whose elytra are red, or yellow, with black spots. 
2. Spotted with white on a red or yellowish ground. 
3. With black elytra, spotted with red. 
4. Black elytra, with white or yellowish spots. 
The larvæ of this genus devour the Aphides, and other small 
animals which infest and injure plants. 
GENUS XL CHRYSOMELA. Tab. 14, 15, 16, and 17. 
Linn. Syst. Nat. page 586. 
The antennæ of this genus are formed of small globular articula- 
tions, which are enlarged towards the end, and in some sort resemble 
a necklace of beads. The thorax and elytra have no margin. 
