Chemoreceptors in the cibario-pharyngeal pump of the cabbage looper moth, Trichoplusia ni (Lepidoptera: Noctuidae)

✍ Scribed by John L. Eaton

• Publisher: John Wiley and Sons
• Year: 1979
• Tongue: English
• Weight: 617 KB
• Volume: 160
• Category: Article
• ISSN: 0362-2525
• DOI: 10.1002/jmor.1051600103

✦ Synopsis

Abstract

The structure of contact chemoreceptors in the cibariopharyngeal pump of the moth Trichoplusia ni (Lepidoptera: Noctuidae) is described. Two types of receptors designated A and B are located on the floor of the pump. Two groups of 9‐12 A receptors are located in the anterior part of the pump, and two groups of two B receptors are in the posterior part of the pump. Five sensory dendrites extend to the tip of each A receptor and four to each B receptors. Available evidence indicates that these receptors are contact chemoreceptors and do not serve as mechanoreceptors. The receptors are compared to those of other insects.