Macrophya fascipennis Takeuchi, 1933

Kumar, Deepthi S & Sankar, Manimuthu M, 2023, Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan VIII, Bulletin of the National Museum of Nature and Science. Series A, Zoology 49 (2), pp. 57-74 : 59

Macrophya fascipennis Takeuchi, 1933

Japanese name: Mon-kuro-habachi

( Fig. 2 )

Larva. Probably early instar ( Fig. 2A ): Head pale olive; trunk creamy white. Middle instar ( Fig. 2B–C ): Head pale olive; trunk pale greenish, each segment with small black spots dorsolaterally and laterally. Late instar ( Fig. 2D ): Head olive, with broad blackish band along midline; trunk pale greenish, each segment with small black spots dorsolaterally. Mature larva ( Fig. 2E ): Head greenish white; trunk vivid pale green, shiny.

Material examined. HONSHU: Tochigi Pref.: 1Ə ( Fig. 2F ), Nakagawa, Koisago , 36°47′N 140°11′E, coll. larva on Rubus trifidus , 23. V. 2021, mat. 14. VI., em. 19. IV. 2022, S. Ibuki .

Host plants. Rosaceae : Rosa onoei Makino var. onoei ( Okutani, 1970; Inomata, 1989). Rubus trifidus Thunb. (new record).

Life history. In Nakagawa, Tochigi Prefecture, Ibuki found a middle instar larva feeding on Rubus trifidus on May 23, 2021, which matured on June 14 and entered the soil. A male adult emerged on April 19, 2022. The larva was a solitary leaf-feeder and stayed coiled at rest ( Fig. 2E ). This species is regarded as univoltine.

Remarks. As a host plant of this species, Okutani (1970) first recorded Rosa sp. based on the rearing result of Ryoichi Inomata, who (Inomata, 1989) himself recorded lYabuibara, Rosa Luciae Franch. et Rochebr. z (= Rosa onoei var. onoei ) later. This is an oligophagous species feeding on Rosa and Rubus . No information about the larva and life history of this species has been published.

Figures

Fig. 2.ɹMacrophya fascipennis. A, Probably early instar larva, Koisago, 23. V. 2021; B, same larva, middle instar, with cast skin, just molted, 7. VI.; C, same larva, 7. VI.; D, same larva, last feeding instar, 11. VI.; E, same larva (above), matured, and cast skin (below), 14. VI.; F, male adult, same individual as A–E, emerged, 19. IV. 2022. Photographed by Ibuki.