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The midline metathoracic ear of the praying mantis,Mantis religiosa
Authors:David D Yager  Ronald R Hoy
Institution:(1) Section of Neurobiology and Behavior, Division of Biological Sciences, Cornell University, Ithaca, New York, USA;(2) Section of Neurobiology and Behavior, Cornell University, W214 Seely G. Mudd Hall, 14853 Ithaca, NY, USA
Abstract:Summary The praying mantis, Mantis religiosa, is unique in possessing a single, tympanal auditory organ located in the ventral midline of its body between the metathoracic coxae. The ear is in a deep groove and consists of two tympana facing each other and backed by large air sacs. Neural transduction takes place in a structure at the anterior end of the groove. This tympanal organ contains 32 chordotonal sensilla organized into three groups, two of which are 180° out of line with the one attaching directly to the tympanum. Innervation is provided by Nerve root 7 from the metathoracic ganglion. Cobalt backfills show that the auditory neuropile is a series of finger-like projections terminating ipsilaterally near the midline, primarily near DC III and SMC. The auditory neuropile thus differs from the pattern common to all other insects previously studied.
Keywords:Insect hearing  Ear anatomy  Auditory nervous system  Praying mantis  Mantis religiosa
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