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Some evidence of gustatory discrimination in the cotton stainer Dysdercus fasciatus Sign. (Hem., Pyrrhocoridae)

Published online by Cambridge University Press:  10 July 2009

D. J. Peregrine
D. J. Peregrine
Affiliation:
Department of Zoology, University College, Cardiff, South Wales
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Extract

In laboratory experiments with Dysdercus fasciatus Sign, systematic testing of the stylets with a sucrose solution and distilled water has shown that the receptors mediating the salivary response to sucrose are located either on the maxillary stylets or at some site internal to them. Electronmicroscopical examination showed that the maxillary stylets were not innervated, and histological evidence further suggested the epipharyngeal organ as the site of gustatory discrimination. Dendrites located in the mandibular sclerites by means of the electron microscope could possibly have a proprioceptor function.

Information

Type
Research Paper
Information
Bulletin of Entomological Research , Volume 62 , Issue 2 , November 1972 , pp. 211 - 214
Copyright
Copyright © Cambridge University Press 1972

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