Gigantalcis flavolinearia (Leech)

Beljaev, Еvgeniy A. & Titova, Olga L., 2023, New data on geometroid moths (Lepidoptera: Geometroidea: Uraniidae and Geometridae) from Sakhalin and Moneron islands with notes on their taxonomy distribution and ecology, Zootaxa 5369 (1), pp. 1-41 : 9

Gigantalcis flavolinearia (Leech)

( Fig. 9 )

Gigantalcis flavolinearia : Beljaev & Mironov 2019: 244 ( Sakhalin); Vasilenko & Dubatolov 2021: 256 (Yasnomorskoe).

Material examined. 5 ♂, 1 ♀, S Kholmsk, 11, 12, 13, 15.IX.2017 ; 1 ♂, S Kholmsk, 14.IX.2022 .

Distribution. Russia (S RFE: SW Sakhalin, S Kurils—Kunashir ( Rybalkin 2020)), Japan ( Hokkaido, Honshu, Shikoku, Kyushu).

Remarks. The finding of G. flavolinearia in Sakhalin significantly expands its general distribution range to the north. The host plants of the species in Japan are woody Rosaceae ( Cerasus, Malus , Sorbus ) ( Sato 2011), which are common in S Sakhalin. The moths fly during September. Genus Gigantalcis Inoue contains only two species, distributed far apart from each other: G. flavolinearia (the type species of the genus) and G. gomphica (Wehrli) , distributed in N and SW China ( Shaanxi, Sichuan), and northern Laos ( Sato 2017).

Figures

FIGURES 2–21. Epipleminae, Ennominae, Desmobathrinae and Geometrinae from Sakhalin. 2—Dysaethria illotata, ♀, S Kholmsk; 3—D. moza, ♀, Sokhonda mount.; 4—Eversmannia exornata, ♀, Yuzhno-Sakhalinsk; 5—Eilicrinia wehrlii, ♂, “Chertov most”, photo in nature by O.L. Titova; 6—Lomographa simplicior, ♂, Sokhonda mount.; 7—Platycerota incertaria, ♂, Pionery, photo in nature by O.L. Titova; 8—Aethalura ignobilis, ♀, S Kholmsk; 9—Gigantalcis flavolinearia, ♂, S Kholmsk; 10—Pachyerannis obliquaria ♂, central Kholmsk, photo in nature by O.L. Titova; 11—Cusiala stipitaria, ♂, S Kholmsk; 12—Larerannis orthogrammaria, ♂, S Kholmsk; 13—Lassaba nikkonis, ♀, S Kholmsk; 14— Zanclidia testacea, ♀, Sokhonda mount.; 15—Abraxas niphonibia, ♀, Moneron (a—upper side; b—underside); 16—Macaria continuaria, ♂, Nysh; 17–18—Alsophila japonensis, S Kholmsk: 17—♂, 18—♀, photo in nature by O.L. Titova; 18—Inurois asahinai, S Kholmsk; 20—Geometra dieckmanni, ♀, S Kholmsk; 21—Comibaena amoenaria, ♂, S Kholmsk. Scale—10 mm.