Sensilla of Leptocybe invasa observed by scanning electron microscope

The sensilla of antennae,mouthparts,legs,terminal abdomen and compound eyes of the male adult of Leptocybe invasa w ere observed w ith scanning electron microscope to define the external morphological characteristics of its sensilla,and the differences betw een the sensilla of the female and male w ere compared. The result show ed 8 kinds of antennal sensilla,namely Bhm bristles,trichoid sensilla,chaeticum sensilla,basiconic sensilla,auriform sensilla,placoid sensilla,zonated sensilla and mammilliformia sensilla,w ere observed. There w ere 3 kinds of sensilla on the mouthparts,viz Bhm bristles,trichoid sensilla and chaeticum sensilla. Bhm bristles,trichoid sensilla,chaeticum sensilla and basiconic sensilla w ere observed on the legs of the males. Furthermore,there w ere antenna cleaners on the legs of the male. Bhm bristles,trichoid sensilla and chaeticum sensilla w ere found on the terminal abdomen.On the compound eyes only basiconic sensilla w ere found. The biological function of the sensilla found on the males w as discussed.