The Mechanosensory Subgenual Organ Complex in the Stick Insect Bacillus rossius (Phasmatodea): Neuroanatomy and Functional Morphology.

ABSTRACT: The subgenual organ complex is an elaborate mechanosensory complex in the insect leg containing chordotonal organs. In stick and leaf insects (Phasmatodea), it includes the subgenual organ and the distal organ. This study documents the neuroanatomy and functional morphology of the subgenual organ complex in the stick insect Bacillus rossius (Bacillidae: Bacillinae) by axonal tracing and micro-computed tomography. It also considers the first report on the subgenual organ complex in stick insects that reported a relatively simple organization of the sensory organ and its nerves on the basis of histological sections. Our findings show the neuroanatomy and nerve pattern of the subgenual organ complex in B. rossius with a subgenual organ and a distal organ. The subgenual organ is placed in the

SUBMITTER: Strauß J 

PROVIDER: S-EPMC12789965 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature