Living With Bat Detectors

Sound Organs (Pilfers (p)) of A Hawkmoth
Image: L.T. Wasserthal

Hawkmoths fly at night and are tasty prey for bats. Some hawkmoths have evolved the ability to detect the ultrasonic sounds emitted by bat sonar. The Death Head Hawkmoth and some other moths in the Choerocampina, use a sound detection organ that has evolved from a modified labial palp and labral pilifer (a hair covered remnant of the vestigial mandibles). The labral pilifer contains the sensory nerves that send signals to the…

Source: Living With Insects Blog

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