Legs
Most insects have three pairs of walking legs -- one pair on each thoracic segment. Each leg contains five structural components (segments) that articulate with one another by means of hinge joints:
The term pretarsus refers to the terminal segment of the tarsus and any other structures attached to it, including:
ungues -- a pair of claws
arolium -- a lobe or adhesive pad between the claws
empodium -- a large bristle (or lobe) between the claws
pulvilli -- a pair of adhesive pads
Leg Adapations and Modifications:
| Characteristic | Appearance | Example(s) |
|---|---|---|
| Cursorial -- adapted for running |
|
and Cockroaches |
| Raptorial -- adapted for catching and holding prey |
|
Praying mantids |
| Natatorial -- adapted for swimming |
|
and Water beetles |
| Fossorial -- adapted for digging in soil |
|
|
| Saltatorial -- adapted for jumping |
|