Heard A Mile Away

Bladder Grasshopper, Bullacris membracioides

The Bladder Grasshopper of South Africa, Bullacris membracioides, has a sound detection system that can detect mating calls at great distance. This grasshopper does not have a tympanum like many of the grasshopper species. Instead it has a series of 12 chordotonal organs in the first 6 segments of its abdomen (one on each side). The organs in the first abdominal segment are the most sensitive: each contains 2000 sensilla. The posterior five pairs…

Source: Living With Insects Blog

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