Abstract
SUMMARY The presence of taste chemosensilla was demonstrated, by using both morphological and electrophysiological techniques, on labella, tarsi, and palps of a laboratory-reared colony of Simulium decorum Walker (Diptera Simuliidae). Each type of chemosensillum was sensitive to NaCl or sucrose stimulation, and proved to consist of four chemosensory units. The presence of various chemosensory units in each sensillum allows the assumption that in S. decorum single sensilla may provide the CNS with adequate information for peripheral discrimination among the stimulating chemicals, possibly by providing different spike discharge patterns according to the quality of the stimulus.
Published Version
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