Steering responses of adult and nymphal crickets to light, with special reference to the head rolling movement

Kenji Tomioka, Tsuneo Yamaguchi

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Most tethered adult crickets (Gryllus bimaculatus) assumed flight postures with or without flapping their wings in a windstream. Nymphal crickets (sixth and seventh, i.e. final, instars) also displayed the flight posture in spite of the incompleteness of wing development. These adult nymphal crickets rolled their heads towards the light source in response to unequal illumination of the compound eyes only while maintaining the flight posture. The amphtude of the head rolling movements was proportional to the change of light position up to 120°C, and independent of the light intensity if the duration was longer than 1 sec. The unequal illumination could also induce a transient increase in discharge frequency of the wing muscles on both sides, a decrease in wing beat amplitude of the ipsilateral wing on the illuminated side, and bending movements of the legs and abdomen towards the light. Cutting either of the nerve connectives at any level between the subosophageal and metathoracic ganglia did not affect the response of either the head or the abdomen to illumination. These results are discussed in relation to the steering mechanism associated with the dorsal light reaction.

Original languageEnglish
JournalJournal of Insect Physiology
Volume26
Issue number1
DOIs
Publication statusPublished - 1980

Fingerprint

Gryllidae
Head Movements
Light
posture
Lighting
Posture
lighting
flight
abdomen
Abdomen
Head
Gryllus bimaculatus
compound eyes
Ganglia
light intensity
Leg
legs
nerve tissue
instars
Muscles

Keywords

  • Cricket
  • head rolling movement
  • light
  • steering response

ASJC Scopus subject areas

  • Insect Science
  • Physiology

Cite this

Steering responses of adult and nymphal crickets to light, with special reference to the head rolling movement. / Tomioka, Kenji; Yamaguchi, Tsuneo.

In: Journal of Insect Physiology, Vol. 26, No. 1, 1980.

Research output: Contribution to journalArticle

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