Proleg

Definition

Fleshy, stub-legged appendages found on the abdominal segments of larval insects such as caterpillars and some sawfly larvae, aiding in locomotion.

Etymology

From the Latin 'pro-', meaning 'before' or 'forward', and 'leg', referring to the limb.

Example

The caterpillar uses its prolegs to grip onto leaves as it feeds.

Synonyms

• Abdominal legs
• Pseudopods

Related Terms

• Larva
• Caterpillar
• Sawfly
• Thoracic legs

Usage Notes

Prolegs typically have small hooks or crochets that help the larva grasp surfaces. They are not true legs but function similarly during larval stages.