Legs and their modification
- Contains 5 segments:
a) Coxa
b) Trochanter
c) Femur: Largest and strongest part of leg.
d) Tibia
e) Tarsus
- Last segment of leg
- 1st segment: metatarsus
- Last segment: Pretarsus
- In louse, only one claw in leg.
- Arolium pads is present in tarsus.
Modification of legs
- Fossorial ( digging): mole cricket.
- Natatorial (Swimming) : water beetle
- Raptorial ( Grasping): Mantid
- Saltatorial ( Jumping): Grasshopper
- Scansorial ( clinging): Body louse
- Cursorial ( Walking and running): Cockroach
- Polleniferous (pollen carrying): Honeybee ( Worker)