Xyela japonica Rohwer, 1910

Xyela japonica Rohwer, 1910: 99 –100, ♀, type locality: Japan, Honshu, Kanagawa Prefecture, Hakone; Takeuchi 1955: 112; Benson 1961: 171 (junior synonym of X. obscura (Strobl, 1895)); Blank 2002: 226 –227 (removed from synonymy); Blank et al. 2005: 262 (identification, distribution); Yoshida, 2006: 15; Shinohara, 2013: 332; Blank et al. 2013: 33 (identification, distribution).

Xyela obscura: Benson 1961: 170 (senior synonym of X. japonica); Benson 1962: 385 (partly misidentified); Togashi, 1965: 243; Okutani, 1977: 285; Okutani 1982: 19.

Description and type material. Blank et al. (2005).

Host. Most likely Pinus densiflora P. Siebold & Zuccarini. The specimens from Nogutsuna Island were collected together with a series of X. variegata, for which P. densiflora is the larval host. Xyela occidentalis, the putatively most closely related species, is also associated with this pine species (Blank et al. 2005).

Distribution. Honshu (Blank et al. 2005; this work), Kyushu? (Takeuchi 1955), Shikoku (Okutani 1982, this work).

Records. Honshu: Ishikawa, Pref., Mt. Koshu, [136.97°E 37.38°N], 28.4.1963, 1♀, NSMT.

Shikoku: Ehime, Is [land] Nogutsuna, [33.966°N 132.691°E], 14.4.1958, leg. F. Takechi, 8♀ 2♂, EUMJ.

Remarks. Okutani (1982) gave a collection record of “ X. obscura ” from Ashizuri-misaki, Kochi Prefecture, Shikoku. The occurrence on this island is here confirmed. Takeuchi’s (1955) record of X. japonica from Kyushu needs confirmation.