Insects that stridulate during encounters with arthropod and mammal predators have been shown to gain an advantage by decreasing predator handling time and in some cases avoiding predation (Masters 1979).
These scorpions are unique in possessing the ability to stridulate audibly by scraping nodules and/or ridges on the dorsal surfaces of their pectines against granules on the ventral surfaces of mesosomal sternite III, a remarkable behavior that presumably functions to deter would-be predators (Pocock 1904; Lourenco & Cloudsley-Thompson 1995; Armas 2001; Lourenco 2007).
richteri stridulate from a variety of different cues: nest disturbance, discovery of a new food source, physical restraint, and interactions with ants of intra or interspecific colonies.
Male crickets "chirp," or more accurately, stridulate, by shuffling a toughened scraper on one front wing against the enlarged transverse vein of the other front wing.
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