Cusiala stipitaria (Oberthür, 1880)

Beljaev, Evgeniy A., Vasilenko, Sergey V., Dubatolov, Vladimir V. & Zinchenko, Vadim K., 2023, First data on autumn Geometridae (Lepidoptera) on the Kuril Islands, Amurian Zoological Journal XV (3), pp. 679-690 : 682

Cusiala stipitaria (Oberthür, 1880)

Material. Danilovskii Cordon, at light, 24.09.2022 — 1♂; Andreevskii Cordon, at light, 21.10.2022 — 1♀; ibid, 25.09.2022 — 1♂ ; ibid, forest above the cordon, at light, 26.09.2022 — 1♂ .

Distribution. Russia (S RFE: Amurskaya Obl., S Khabarovskii Kr., Primorskii Kr., Sakhalin, S Kurils — Kunashir); NE and SW China, Korea, Japan (Hokkaido, Honshu, Shikoku, Kyushu, Tsushima, Yakushima, Amami Oshima).

Remarks. Normally moths fly in May and June, as they overwinter as pupae. The collected moths represent small specimens likely belonging to partial second generation, leaving no offspring. Larvae feed on various leaved trees and shrubs.

** Ramobia mediodivisa Inoue, 1953

( Fig. 1 : A)

Material. Danilovskii Cordon, at light, 24.09.2022 — 1♂, 1♀.

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

Remarks. A new species for the fauna of Russia. This is an autumn species, flying in Japan from September to November; overwinters as eggs ( Sato 2011). Host plant of larvae, probably, are Magnolia spp. ( Magnoliaceae ), as in Japan the hatched larvae were successfully bred on Magnolia obovata , and related species, Ramobia basifuscaria (Leech, 1891) , also feeds on this tree ( Sato 2011).

Figures

Fig. 1. New geometrid moths (Geomtridae) from Kunashir Island: A — Ramobia mediodivisa, female; B — Photoscotosia lucicolens, female; C — Pennithera comis, female; D — Venusia phasma, female; E — Martania fulvida, female. The scale bar — 10 mm