Xiphydria eborata Konow, 1899

Bourke, Joanna, 2024, Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX, Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1), pp. 19-32 : 29-30

Xiphydria eborata Konow, 1899

Japanese name: Kubinaga-kibachi

Material examined. HONSHU: Nagano Pref.: 1♀1 ♂, Yumine, 1350 m, Takayama, em. from dead branch of Alnus hirsuta 23. VII. 2023, H. Kojima; 1♀, Karasawa, 1700 m, Kyowa, Saku, dead branch of Betula ermanii , coll. 11. VIII. 2023, em. 23. VIII. 2023, A. Shinohara.

Host plant. Betulaceae : Betula grossa Siebold et Zucc. ( Shinohara and Kameda, 2019), B. ermanii Cham. (new record), Alnus hirsuta Turcz. (new record). Juglandaceae : Juglans mandschurica Maxim. var. sachalinensis (Komatsu) Kitam. ( Shinohara and Kameda, 2019).

Remarks. This is the commonest species of Xiphydriidae in Japan, sometimes found in numbers on dead or cut trunk of alders or birches in Hokkaido and on mountains in Honshu. The host plant records for X. eborata based on good evidence (observation of oviposition or adult emergence) are B. grossa and J. mandschurica (Shinohara and Kameda, 2019), and B. ermanii and A. hirsuta are newly added here.