Opopaea syarakui (Komatsu, 1967)

Fig. 5G–P

Gamasomorpha syarakui Komatsu, 1967: 46, text-f. 1, fig. 1–8, female holotype from Tokushima, Japan; not examined.

See the World Spider Catalog (2023) for the complete taxonomic list.

Materials Examined. Izena Island (Okinawa Pref.): 1 male (FB, per. coll.), dry forest litter along the road (26°54'56.4"N, 127°56'34.2"E), Izena, Shimajiri District, 24-II-2021, F. Ballarin, leg. Kumamoto Pref. : 1 female (NSMT-Ar 21915), Sugawara Shrine (32°48'40.6"N, 130°44'38.2"E), Hotakubohonmachi, Higashi-ku, Kumamoto City, 24-III-2022, R. Hidaka leg. ; 1 male, Sugawara Shrine (32°48'40.6"N, 130°44'38.2"E), Hotakubohonmachi, Higashi-ku, Kumamoto City, 4-IV-2022, R. Hidaka leg.

Diagnosis. Opopaea syarakui resembles O. furcula Tong & Li, 2010 in having the following combination of characteristics: body reddish-orange, dorsum of carapace lacking cps and pt distinctively thicker and longer than cb, but can be distinguished by the following features: usr presents on the anterior side of the abdomen of O. syarakui (Fig. 5K, P), while absent in O. furcula (Fig. 4D in Tong & Li 2010); triangular pd with distinctively sclerotized margins on the epigastric region of O. syarakui (Fig. 5O), while rounded and shallow pd in O. furcula (Fig. 4G in Tong & Li 2010). Opopaea syarakui is also similar to O. media Song & Xu, 1984 in general appearances and the shape of pd, but can be distinguished by the shape of cb: ventral side of cb slightly narrower proximally in O. syarakui (Fig. 5J, also see Figs. 4, 5 in Komatsu 1967), while suddenly narrower proximally in O. media (Fig. 5 in Song & Xu 1984).

Description. See Ono (2009) for further details.

Distribution. Korea, Japan. Also see Fig. 11 and Table 2 for details of distribution in the Nansei Islands.

Habitat. In Japan, this species was collected from litter layers and tree barks.