First description of the female Ozyptila kansuensis (Tang, Song & Zhu, 1995), comb. nov. (Araneae: Thomisidae) .

The genus Ozyptila Simon, 1864 contains 107 catalogued species distributed mainly in the Holarctic region (Platnick 2013). This genus has traditionally been regarded as a group of small ground-living thomisids with clavate setae related to Xysticus (Lehtinen 2002). Ten species were recorded from China (Song & Zhu, 1997; Platnick 2013). Species of Ozyptila can be distinguished from those of Xysticus by the presence of clavate body setae on the abdominal dorsum, the swollen femur, and the sparsely armed leg I (Dondale & Render 1978). Xysticus kansuensis was recorded from Wen County (adjacent to Sichuan), Gansu, China (Tang et al., 1995). While studying thomisids collected from Yuelu Mountains, Changsha City, Hunan Province, we noticed 18 male and 6 female thomisid specimens. The male specimens were identified as Xysticus kansuensis Tang et al., 1995; the female specimens belonged to Ozyptila according to the clavate setae on body (Fig 1) and the epigynal hood (Figs 9, 13). The presence of the clavate setae in the male specimen (Figs. 2, 3) and the similar male palp structure convinced us that X. kansuensis should be transferred to the genus Ozyptila. The female of O. kansuensis (Tang, Song & Zhu, 1995) comb. nov. is described here for the first time. One dwarf male specimen of this species with a pair of developed asymmetric palps is documented (Figs 4, 5). All specimens were kept in 75% ethanol unless otherwise stated. Specimens were examined and photographed with an Olympus BX53 compound microscope, an Olympus SZX16 stereomicroscope and a Canon Powershot G12 digital camera. The terminology used mainly follows Dondale & Render (1975, 1978). All measurements are given in millimeters. Epigynes were cleared in warm solution of potassium hydroxide (KOH). Leg measurements are given as total length (femur, patella + tibia, metatarsus, tarsus). Specimens are deposited in Hunan Normal University, Changsha, China.