Pterostigma
- Pronunciation
- /ter-oh-STIG-muh/
- Category
- Anatomy
- Singular
- Pterostigma
- Plural
- Pterostigmata
Definition
A thickened, pigmented, opaque spot on the leading edge of the wings of certain insects, such as dragonflies and damselflies. It helps to stabilize the wing during flight.
Etymology
From Greek 'ptero-', meaning 'wing', and 'stigma', meaning 'mark' or 'spot'.
Example
The pterostigma is clearly visible on the wings of the dragonfly, providing stability during its fast and agile flight.
Synonyms
- Wing spot
Related Terms
- Wings
- Flight
- Dragonflies
- Damselflies
- Insect anatomy
Usage Notes
The presence and structure of the pterostigma can be useful in identifying certain species and understanding their flight mechanics.