A small scale-like sclerite covering the base of the forewing in many insects.
- ‘With pollinarium removed, exposing the scar left after the removal of the tegula.’
- ‘They both have bifoliate pseudobulbs that are separated by a long rhizome covered by coriaceous bracts, a pollinarium of Type 1 composed of a liguliform tegula, with conspicuous resin or wax-like rewards at the lip surface.’
- ‘With the wing in the open-position a membrane fold touches the tegula.’
Early 19th century: from Latin, literally tile, from tegere to cover.