Abstract
Olfactory sensilla on the antennal club of the pine weevil, Hylobius abietis, have been studied by scanning and transmission electron microscopy. Two main types, sensilla basiconica and sensilla trichodea, have been classified. The former are found in two variants, one containing one sensory cell and the other two. Sensilla trichodea have one sensory cell. The two sensillum types are localized in different fields of the club. The numerous sensilla basiconica are confined exclusively to the two constriction bands. Sensilla trichodea, fewer in number, are mainly restricted to the distal part where they also form a third ring. In addition, they are found immediately distal to the two construction bands. The fine structure of the two types suggests an olfactory function which could be proven by electrophysiological studies. The other hairs on the club are shown to belong to mechano- and taste sensilla and uninnervated setae.
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Schedule a callMore From: Zeitschrift fur Zellforschung und mikroskopische Anatomie (Vienna, Austria : 1948)
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