The antennal sensilla of the praying mantis Tenodera aridifolia: A new flagellar partition based on the antennal macro-, micro- and ultrastructures

Thomas Carle, Yoshihiro Toh, Yoshifumi Yamawaki, Hidehiro Watanabe, Fumio Yokohari

Research output: Contribution to journalArticle

16 Citations (Scopus)


In insects, the antenna consists of a scapus, a pedicellus, and a flagellum comprising many segments (flagellomeres). These segments possess many morphological types of sensory organs (sensilla) to process multimodal sensory information. We observed the sensilla on flagellomeres in praying mantis (Tenodera aridifolia) with both scanning and transmission electron microscopes. We classified the sensilla into six types: chaetic, campaniform, coelocapitular, basiconic, trichoid and grooved peg sensilla, and inferred their presumptive functions on the basis of their external and internal structures. In addition, based on their distribution, we newly divided the flagellum into 6 distinct parts. This new division leads to a better understanding about the sexual dimorphism and the antennal development in the mantises. The sexual difference in distribution of the grooved peg sensilla suggests that this type of sensilla may play a role in sex-pheromone detection in mantis, which is a rare case of double-walled sensilla mediating this function.

Original languageEnglish
Pages (from-to)103-116
Number of pages14
JournalArthropod Structure and Development
Issue number2
Publication statusPublished - Mar 1 2014


All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Developmental Biology
  • Insect Science

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