Phylloecus etorofensis ( Takeuchi, 1955 )

Fu, Yuanzun, Yuan, Yuan, Shen, Qian, Xu, Hao, Ye, Zheng, Guo, Li, Wu, Xiaoliang & Zhao, Yunhe, 2021, Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan VI, Bulletin of the National Museum of Nature and Science. Series A, Zoology 47 (4), pp. 163-188 : 165-166

Phylloecus etorofensis ( Takeuchi, 1955)

Japanese name: Chishima-kiberi-kukibachi

( Fig. 1B )

Material examined. HOKKAIDO: 1 ˂, Fukagawa, Takadomari , 43°55′N 142°03′E, 25. VI. 2019, H. Hara .

Distribution. Japan: Hokkaido (new record), Etorofu Island ( Takeuchi, 1955), Kunashiri Island ( Sundukov, 2015). Russia: European part ( Zhelochovtsev and Prochorova, 1976) to Siberia and southern Primorye (Verzhutskij, 1981). Finland ( Taeger et al., 2006).

Host plants.? Rosaceae : Rosa spp. ( Sundukov, 2015, 2017; see comments below).

Remarks. Takeuchi (1955) described this species from Etorofu Island, southern Kuriles, and it was later recorded from Moskva, Jakutsk and southern Primorye, Finland and Kunashiri Island, southern Kuriles (see references above). The specimen listed above represents the first distribution record from the main island of Hokkaido. This is a mainly black species, with characteristic yellow marks on the lower inner orbit, mandible, and each side of the abdominal terga 3 and 4 ( Fig. 1B ).

Sundukov (2015, 2017) just noted lЛичинки в побегах роЗовых [Larvae in pink shoots] ( Rosaceae )z (2015) and lHost plant: Rosa spp. ( Rosaceae )z (2017) without giving source of information. This host record may need confirmation.

Figures

Fig. 1. A, Late instar larva of Sterictiphora nipponica, 25. V. 2015, photographed by Ibuki. B, Phylloecus etorofensis, female, photographed by Hara. C, Dead female of Tremex apicalis on trunk of Alnus japonica, 23. V. 2021, photographed by Shinohara. D, Apethymus kunugi, female, photographed by Hara.