New data on geometroid moths (Lepidoptera: Geometroidea: Uraniidae and Geometridae) from Sakhalin and Moneron islands with notes on their taxonomy distribution and ecology Author Beljaev, Еvgeniy A. Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia. Author Titova, Olga L. Sakhalin Territory Department of Hydrometeorology and Environmental Monitoring, Sakhalinskaya oblast, Yuzhno-Sakhalinsk, Russia. text Zootaxa 2023 2023-11-08 5369 1 1 41 https://www.mapress.com/zt/article/download/zootaxa.5369.1.1/52227 journal article 10.11646/zootaxa.5369.1.1 1175-5326 10147411 B39D176D-381C-4F77-8A5F-F7992335930D Xanthorhoe hortensiaria (Graeser) ( Fig. 31 ) Xanthorhoe hortensiaria : Beljaev & Mironov 2019: 259 ( Sakhalin ). Material examined. 5 ♂, 4 ♀ , S Kholmsk, 23, 31.V, 06,14, 15.VI.2017 , 02, 20.VI.2018 ; 4 ♂, 1 ♀ , Yasnomorskoe, 11–13, 14–15, 18, 19.VIII.2020 . Distribution. Russia (S RFE: S Sakhalin , S Khabarovskii Krai, Primorskii Krai), Japan ( Hokkaido , Honshu, Shikoku, Kyushu, Tsushima), South Korea , China (NE, N, Central, SW). Remarks. The finding of X. hortensiaria in Sakhalin significantly expands its distribution range to the northeast. Ecologically it is associated with dry meadows. In Sakhalin it develops in two generations, the moths fly in late May—June, and in August. The hostplant of the larvae is unknown. In BOLD, the specimen of “ Xanthorhoe hortensiaria ” from China , Jilin (BIN ID: ACJ3928, sequence ID: GWOTL1007-13; also in GBIF, occurrence 1415542476) in the wing pattern and size corresponds to Xanthorhoe evae Viidalepp & Remm, 1982 (= Xanthorhoe separata Inoue, 2004 , it was synonymized by Beljaev 2016: 600 ), which is distributed in RFE (S Sakhalin, S Khabarovskii Krai, Primorskii Krai) and Japan ( Hokkaido ). We indicate X. evae for China for the first time. Ecologically, this specoes is closely associated with coniferous forests and prefers mountainan habitats.