Inurois asahinai Inoue, 1974

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 : 987

* Inurois asahinai Inoue, 1974 ( Figs 3 E , 4 D, 4 E )

Material. Surroundings of Andreevskii Cordon, road on a slope, on alder bark, 18.11.2023 – 1♂, 1♀ in copula; Andreevskii Cordon , at light, between 1 and 2 am, 19– 20.11.2023 – 1♂ ; ibid., 21– 22.11.2023 – 1♂ ; ibid., 22– 23.11.2023 – 1♂ ; ibid., the beginning of the trailway near the cordon, alder forest, 20.11.2023 (Zinchenko) – 1♂ ; ibid., road on a slope, alder forest, 21.11.2023 – 6♂ ; ibid., plateau, nearby mixed forest, at night, 18.11.2023 – 1♂ ; ibid., 19.11.2023 (Zinchenko) – 2♂ ; ibid., 21.11.2023 (Zinchenko) – 3♂ ; ibid., ridge, mixed forest, 19.11.2023 – 2♂ (Zinchenko) ; ibid., plateau, at night, 22.11.2023 (Dubatolov, Zinchenko) – 91♂ ; ibid., plateau, in the daytime, 22.11.2023 (Dubatolov, Zinchenko) – 28♂ . Photo of moths: Yuzhno-Kurilsk, 27– 29.11.2023 (Linnik). Video of moths : 23 km NE of Yuzhno-Kurilsk, Filatovka river , 44 ° 11'47" N, 146 ° 01'09" E, 30.11.2023 (Linnik). Photos of moths : 6 km NW of Yuzhno-Kurilsk, Lake Lagunnoe , 44 ° 03′46″ N, 145 ° 45′36″ E, 2.12.2023 (Stefanov) .

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

Remarks. The species is new for the Kuril Islands. On Kunashir, the moths flied from the second half of November to early December and were most numerous in forests in late November. The female ( Fig. 4E ) was found together with a male on the trunk of an alder tree on 18 November. On Sakhalin, moths of this species were recorded earlier, during the first half of November ( Beljaev, Titova 2023). In Japan, I. asahinai inhabits the plains on Hokkaido and mountainous areas on Honshu to Kyushu. In the Kanto region, it appears from mid-November to December, with the peak flight period occurring around mid-November (Nakajima 2011). The larvae are believed to be feeding on various leaved woody plants, similar to other species of Inurois . In 2024, in the Prozrachny Stream valley (9 km north of Yuzhno-Kurilsk, 44 ° 11'47" N, 146 ° 01'09" E), Mikhail Ragimov observed a mass flight of I. asahinai (“thousands of moths”) on 20 November shortly after the first snowfall.

Figures

Fig. 3. Geometrid moths (Geomtridae) from Kunashir Island: A — Erannis golda, male; B — Erannis jacobsoni, male; C — Alsophila inouei, male; D — Alsophila japonensis, male; E — Inurois asahinai, male; F — Inurois fumosa, male; G — Inurois punctigera, male; H — Operophtera brunnea, male; I — Operophtera relegata, male; J — Eupithecia scribai, female; K — Eupithecia daemionata, female. Scale bar: 10 mm

Fig. 4. Geometrid moths (Geomtridae) from Kunashir Island in nature: A — Erannis golda, male; B — Larerannis orthogrammaria, male; C — Alsophila japonensis, male; D, E — Inurois asahinai: D — male, E — female; F — Inurois fumosa, male; G, H — Operophtera brunnea, males; I — Operophtera relegata, male. A–C, E, G–I — photos by V. V. Dubatolov; D, F — photos by S. Yu. Stefanov Рис. 4. ПяΑеницы (Geomtridae) с острова Кунашир в прироΑе: A — Erannis golda, самец; B — Larerannis orthogrammaria, самец; C — Alsophila japonensis, самец; D, E — Inurois asahinai: D — самец, E — самка; F — Inurois fumosa, самец; G, H — Operophtera brunnea, самец; I — Operophtera relegata, самец. A–C, E, G–I — ‰отогра‰ии В. В. ΔубатоΛова; D, F — ‰отогра‰ии С. Ю. Сте‰анова