Abstract
Wolf spiders (Araneae: Lycosidae) of 19 species were collected by hand-sorting in a northwest area of Kanto Plain, Japan, and their habitat preferences were inferred from their frequency in 10 habitats classified by three environmental elements (substrata, light, water). In addition to the 12 species surveyed by trapping (Fujii 1997), the hand-sorting enabled to examine the other seven species, Alopecosa virgata, Arctosa depectinata, A. subamylacea, Lycosa coelestis, Pardosa pseudoannulata, P. yaginumai, and Pirata subpiraticus, and to know more accurate preference of Pardosa agraria, P. astrigera, Pirata clercki, and P. piratoides. The interspecific differences were large within each genus, but were not found between Arctosa ebicha and A. fujiii and between Pirata procurvus and P. tanakai. Partial overlap was also detected among the preferences of other several Pardosa or Pirata species. The differences among the developmental stages were not obvious.
