tegminal

The relation of song structure to tegminal movement in Metrioptera sphagnorum (Orthoptera: Tettigoniidae).

Katydids produce acoustical signals by rubbing their tegmina together, a mechanism referred to as tegminal stridulation (first described by Dumortier in 1963).

In the males of the genus Panoploscelis, the tegminal stridulatory organ consists of a file, a scraper (referred to as a plectrum), and an amplification device, as is found in other katydids.