| The antennal morphology, sensillar types, quantity and distribution of both sexes of Adult Cryptolaemus montrouzieri Mulsant(Coleoptera: Coccinellidae)was investigated with Field Emission Scanning Electron Microscopy(FESEM).The results show that antenna of adult Cmontrouzieri consists of scape, pedicel, and eight flagellomeresSeven sensillar types are observed: four types of sensilla basiconicae(sba), four types of sensilla chaetica, four types of sensilla trichodea(str), and one type sensilla coeloconica(sco), one sensilla auriciliica(sau), cavity-like sensilla(scs), and Bhm bristle(sbm).Sensilla trichodea are the most numerous; sensilla chaetica are the next most abundantThe number of other sensilla types is greatly reducedOn the tip of the 8th flagellomere, various types of sensilla are densely packed, except for sbmNo remarkable differences are foundin the antennal size, shape, and sensilla types between the male and female of CmontrouzieriAccording to the distribution of sensilla and sensilla functions reported in the past, str are presumed to be pheromone receptors in Cmontrouzieri, sch may function as mechanoreceptors and chemoreceptors,sba and sco are postulated as plant volatiles receptors and chemo-, thermo-, or hygroreceptions, respectively, and sbm may be related to perceiving the antennal position and movement |
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