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.