PATAGIA
- PATAGIUM, a wing membrane of a bat [n]
- wing membrane, as of a bat
- the extensible fold of skin of certain insects or of a gliding mammal or reptile, as a flying squirrel
- either of two small processes on the anterior thorax, found esp. among butterflies and moths
- the fold of skin connecting the forelimbs and hind limbs of some tetrapods (as flying squirrels)