Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan VI Author Fu, Yuanzun Author Yuan, Yuan Author Shen, Qian Author Xu, Hao Author Ye, Zheng Author Guo, Li Author Wu, Xiaoliang Author Zhao, Yunhe text Bulletin of the National Museum of Nature and Science. Series A, Zoology 2021 2021-11-22 47 4 163 188 http://dx.doi.org/10.1039/d4cp01914h journal article 10.50826/bnmnszool.47.4_163 2434-091X Tomostethus nigritus (Fabricius, 1804) Japanese name: Yachidamo-habachi Material examined . HOKKAIDO : 1˂, Abira , Oiwake , 42°52′N 141°48′E , 12. V. 2020 , H. Hara . Distribution . Japan : Hokkaido (new record), Honshu ( Abe and Togashi, 1989 ). Palaearctic and Oriental regions. Remarks . The first record of this species from Japan is Takeuchi (1952) , but he did not state the details of the distribution. This speccies is here recorded from Hokkaido for the first time.