Orthonama obstipata (Fabricius, 1794)

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 : 988

Orthonama obstipata (Fabricius, 1794)

Material. Andreevskii Cordon, 7– 8.11.2023 – 1♀; ibid., alder forest, at bait traps, 7.11.2023 – 1♂, 1♀ ; ibid., plateau, mixed forest, on birch, 7– 8.11.2023 (Zinchenko) – 1♂ .

Distribution. Russia (European part, N Caucasus, Urals, South Siberia, S RFE: Amur Obl., Khabarovsk Kr., Primorsky Kr., Sakhalin, S Kurils — Kunashir); almost cosmopolitan, except most northern and most southern territories, and Australia. Migrant.

Remarks. This is the first record of O. obstipata in November, later than its previous record in Kunashir in October (Beljaev et al. 2023), and also the latest for the entire Russian Far East. In Japan, it is distributed almost throughout the country, being common in various habitats from plains to mountains. It appears around the Kanto region from late March to early November, and is thought to be polyvoltine ( Nakajima, Yazaki 2011). The larvae are polyphagous, feeding on herbs, shrubs, and trees.