Jugum
The Jugum is an area at the base of the fore wing of some insects that overlaps the hind wing. The jugum holds the fore and hind wings together during flight.
Some species of butterfly, moths and caddisflies possess a jugum on the fore wing.

An illustration of the general structure of an insect wing showing the Jugum.
Other names for (or types of) Jugum include:
- Jugal lobe
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