Gigantalcis flavolinearia (Leech, 1891)

Beljaev, Evgeniy A., Vasilenko, Sergey V., Dubatolov, Vladimir V. & Zinchenko, Vadim K., 2024, First report on late autumn geometer moths (Lepidoptera: Geometridae) from Kunashir Island, Russia (Southern Kurils), Amurian Zoological Journal XVI (4), pp. 979-995 : 983-984

Gigantalcis flavolinearia (Leech, 1891)

Material. Andreevskii Cordon: 13– 14.10.2023 – 1♀, 15– 16.10.2023 – 1♂, 16– 17.10.2023 – 2♂, 1♀, 19– 20.10.2023 – 2♀ + VO, 20– 21.10.2023 – 1♀.

Distribution. Russia (S RFE: SW Sakhalin, S Kurils — Kunashir; Japan (Hokkaido, Honshu, Shikoku, Kyushu).

Remarks. Flight period of G. flavolinearia on Kunashir Island extends from the second week of September to the end of October, considering the previous data ( Rybalkin 2020;

Beljaev et al. 2023). On Sakhalin Island, the species is observed during the first half of September ( Beljaev, Titova 2023). In Japan, the larvae feed on woody Rosaceae species ( Sato 2011).