Where are the hearing organs located on grasshoppers?

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Meadow grasshopper — Orthoptera A colorful meadow grasshopper (*Chorthippus parallelus*) on a wooden fence.

The hearing organs of grasshoppers, known as tympanic organs, are located on the first segment of the abdomen, one on each side.12

These organs consist of a thin, vibrating tympanic membrane that is typically hidden beneath the base of the insect’s wing cover. Beneath this membrane lies a sensory body containing 80 to 100 scolophores, which transmit sound-induced vibrations to the central nervous system via auditory nerve fibres. While crickets and katydids also belong to the order Orthoptera, their hearing organs are found on their front legs rather than the abdomen.321