Costa

Definition

A rib or prominent longitudinal vein of an insect's wing, usually running along the leading edge.

Etymology

From Latin 'costa', meaning 'rib' or 'side'.

Example

The costa of the dragonfly's wing is critical for maintaining its structural integrity during flight.

Synonyms

• Rib vein
• Leading edge vein

Related Terms

• Vein
• Wing
• Longitudinal vein
• Insect wing

Usage Notes

In entomology, the costa refers specifically to the main vein on the front edge of an insect's wing, differentiating it from other longitudinal veins.