Sensilla on antenna of adult spiralling whitefly Aleurodicus dispersus
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Key Words： Aleurodicus dispersus, antenna sensillum, ultra\|structure, environmental scanning electron microscope
Abstract： The structure and number distribution of sensilla on antenna of both female and male adult spiralling whitefly Aleurodicus dispersus Russell were observed with environmental scanning electron microscope (ESEM). Five types of sensilla were found, i. e. sensilla trichodca, sensilla placodea, sensilla coeloclnica, sensilla chaetica and sensilla basiconica.Sensilla coeloclnica was only found on the antenna of females. The total number of sensilla placodea and sensilla basiconica were not significantly different between sexes. We tried to identify the function of the sensilla on antenna of adult in order to understand the olfactory basis of its host\|finding behavior of this whitefly.