Xyela japonica Rohwer, 1910
Xyela japonica Rohwer, 1910: 99-100, ♀, type locality: Japan, Honshu, Kanagawa Prefecture, Hakone; Benson 1961: 171 (junior synonym of obscura); Blank 2002: 226–227 (removed from synonymy).
Xyela obscura: Benson 1961: 170 (senior synonym of japonica); Benson 1962: 385 (partly misidentified); Okutani 1982: (misidentification).
Description. See Blank et al. (2005).
Host plant. Unknown.
Geographic distribution. Japan (Honshu) (see Blank et al. 2005, fig. 3).