Abstract: The wolf spiders Pardosa pseudoannulata are members of the genus Panthera belongs to family Lycosidae. In order to explore the mechanism of receiving external signals of vagabundae spiders， the types， distribution and characteristics of surface receptors of Pardosa pseudoannulata were observed by the scanning electron microscope （SEM）. The results showed that there were a few single slit sensilla present on the palpal tarsus and tibia， actually， only one or two single slit sensilla were found on the whole pedipalps. Lyriform organs were widely distributed on tibia， pedipalps， foot step， especially on tibia. The tarsal organs were located on pedipalps， their shapes resembled the water drop shaped holes， round or oval holes.

Key words: Pardosa pseudoannulata, slit sensilla, tarsal organ, scanning electron microscope