Squama

Definition

A scale or scale-like structure, particularly the small membranous areas found in insects and some arachnids, often involved in wing attachment or protective functions.

Etymology

From Latin 'squama', meaning 'scale', 'flake', or 'layer'.

Example

In dipteran insects, the squama is located near the base of the wing and helps in protecting the halteres.

Synonyms

• Scale
• Lamella

Related Terms

• Halteres
• Wing
• Exoskeleton

Usage Notes

Squamae can vary significantly in structure and function depending on the species and its evolutionary adaptations.