Abstract:

In this paper, the external morphology of the antennal sensilla of female and male Lysiphlebus fabarum (Marshall) is described using scanning electron microscopy. Seven morphological sensillar types were recognized in both sexes. They are sensilla trichodea (ST), sensilla chaetica typeⅠ (SChⅠ), sensilla chaetica typeⅡ (SChⅡ), sensilla basiconica (SB), sensilla coeloconica typeⅠ (SCⅠ), sensilla coeloconica typeⅡ (SCⅡ) and elongated sensilla placodea (SP). The number of sensilla trichodea (ST) is the largest in all sensilla. Sensilla coeloconica typeⅡ (SCⅡ) is only found in female and its number is the least. The shape and structure of most antennal sensilla between male and female adults were not basically different.

Key words: Lysiphlebus fabarum, antenna, sensilla, ultrastructure, morphology, scanning electron microscopy