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butterfly pupae sound-producing structure diagram

butterfly pupae sound-producing structure diagram

Sound is produced when the sound plates disengage, as illustrated in this sketch. The authors describe this as “stick-slip friction”— the plates normally stick together, but under pressure from abdominal movements, slip apart to make the twittering sound. (Originally published in Dolle et al 2018, Annals of the Entomological Society of America)

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