Mesoneura macroptera Takeuchi, 1936

Ryoo, Seung-Woo, Min, Jin-Young, Son, Seok-Yoon, Choi, Baek-Yong, Choi, Juho & Min, Kyoung-Bok, 2022, Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan VII, Bulletin of the National Museum of Nature and Science. Series A, Zoology 48 (4), pp. 193-213 : 208

Mesoneura macroptera Takeuchi, 1936

Japanese name: Hanebiro-habachi

( Fig. 10A, B )

Larva. Final feeding instar (probably final instar): Length about 20 mm; pale green ( Fig. 10A, B ); head with black markings; spiracles dark green; anal abdominal tergum without caudal protuberance.

Material examined. Honshu: Tochigi Pref.: 1 $, Nakagawa, Yamata , 36°42′N 140°12′E, coll. larva on Acer sp. , 8. VI. 2018, mat. 12. VI., em. 21. IV. 2019, S. Ibuki ( Fig. 10A, B ) .

Host plant. Sapindaceae : Acer sp. (new record).

Life history. A solitary larva was found in early June in Nakagawa , Tochigi Prefecture. In the rearing room, it matured in middle June and became an adult in the following spring. This sawfly has one generation per year .

Remarks. The host plant of this species is recorded and the larva is recognized here for the first time. Mesoneura mikagei Togashi, 1998 is also known to be associated with Acer . Both belong to the M. macroptera group. Other groups of the genus are associated with Quercus and occasionally with Larix ( Liston, 2012; Wei et al., 2013).

Figures

Fig. 10. A, B, Mesoneura macroptera, final feeding instar larva, 8. VI. 2018. C, D, Mesoneura mikagei: C, Eggs, 12. V. 2019; D, early instar larvae, 11. V. 2018. Photographed by Ibuki.