stridulation (stridulashon)

[ Stridulation is effected by rubbing together hard or rough parts of the body, often specially modified in various ways for that purpose, being thus not vocalization or phonation. It is highly characteristic of many homopterous insects, as the cicadas; of many orthopterous insects, as various locusts or gra hoppers; and of some coleopterous insects, or beetles. It rarely occurs in lepidopterous insects, but has been observed in some butterflies and moths, and also in a few spiders, as of the genus The rid i on. Those Stridulant i a . homopterous insects in which it is specially marked are stridulator (strid'ū-lā-tor), n. [