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Hyperphagia and the control of ingestion in the female mosquito,Culiseta inornata (Williston) (Diptera: Culicidae)

✍ Scribed by Owen, William B. ;McClain, Elizabeth


Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
371 KB
Volume
217
Category
Article
ISSN
0022-104X

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✦ Synopsis


Abstract

Hyperphagia resulted in all females of Culiseta inornata that were fed 1 M sucrose after the ventral nerve cord was severely damaged or severed in either abdominal segment I, II, or III. Hyperphagia also occurred in 42% of females fed successive higher concentrations of sucrose ranging from 0.25–2.0 M. The conclusions are: (1) Signals from receptors in the anterior abdominal segments limit the intake of sugary liquids; (2) this type of receptor is absent from the ventral diverticulum; and (3) excitatory input from oral receptors may dominate inhibitory input from abdominal stretch receptors.