Entomologia Experimentalis et Applicata (1978) 24, 518-519

A. Louveaux (1978)
Feeding mechanisms of the migratory locust. Locusta migratoria migratorioides (Orthoptera, Acrididae)
Entomologia Experimentalis et Applicata 24 (3), 518-519
Abstract: A film detailing the feeding mechanism of Locusta migratoria migratorioides is described Deafferation of the labrum and mandibles does not stop rhythmic activity in the operated organ, and despite considerable loss of sensory information the locust still has organised feeding behaviour. Mandibles, labrum, maxillae and labium are all coordinated during biting, and this is especially well developed between lacinia and mandibles where it is shown to be adjusted by feedback from the intramandibular receptors. When stimulated, hypopharyngeal proprioreceptors activate feeding, and this can be prevented by deafferation of this organ. Mechanical stimulation of the hypopharynx is necessary if feeding is to lead to ingestion. When the brain is isolated by section of the circumoesophageal connectives, mandibular activity is easier to start and maintain following stimulation of the hypopharynx, and these operated insects bite without discrimination any objects presented to them. It is concluded that, like other rhythmical activities, movement of the mouthparts is organised in the central nervous system and is adjusted by input from proprioreceptive stimuli.
(The abstract is excluded from the Creative Commons licence and has been copied from Acridological Abstracts with permission by NRI, Univ. of Greenwich at Medway.)
Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Locusta migratoria