Ultrastructure of antennal sensilla in adult Basilepta melanopus
Basilepta melanopus is a major pest in tea cultivation,and its antennae play a crucial role in locating food and mating.This study used scanning electron microscopy to examine the morphology and sensilla type,morphology and distribution of adult antennae.Results show that the antennae consist of a scape,pedicle,and a 9-segmented flagellum,with males having significantly longer antennae than females.Six types and ten subtypes of sensilla were identified,including sensilla trichoid,sensilla chaetica,sensilla basiconica,Böhm's bristles,sensilla coeloconica,and sensilla styloconica.No sex differences were found in the types of sensilla.The ninth flagellomere had the highest number of sensilla,while the first flagellomere had only sensilla chaetica.Males had longer sensilla trichoid Ⅱ,Ⅳ,and V compared to females.These findings offer insights for developing biocontrol strategies based on pest behavior.
Basilepta melanopusscanning electron microscopyfiliform antennaeantennal sensilla
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