The types of a little known species Holarctias rufinularia (Staudinger, 1901) are illustrated for the first time and redescribed, and misidentifications of this species are corrected. Photos of the types of Acidalia rufularia Eversmann, 1851, and Acidalia rufociliaria Bremer, 1864, are published for the first time. Species composition, diagnosis and relationships of the genus Holarctias Prout, 1913 are discussed.

No abstract

Pachista superans (Butler, 1878) (Geometridae) is recorded from Russia for the first time. Three species, Melanchra postalba Sugi, 1982 (Noctuidae), Pseudoips sylpha Butler, 1879 (Nolidae), and Oreta pulchripes Butler, 1877 (Drepanidae) are new for the fauna of the Kuril Islands. The actual abundance and distribution of the rare species Asteropetes noctuina (Butler, 1878) (Noctuidae) is specified.

A checklist of the Geometridae of the Kamchatka Peninsula and the adjacent islands is presented. A total of 80 species are recorded, and 20 species are omitted as doubtful for the fauna of the territory. One new species and five new subspecies are described (Xanthorhoe okhotinaria Beljaev & Vasilenko sp. n., Xanthorhoe okhotinaria sikhotenaria Beljaev & Vasilenko ssp. n., Dysstroma citratum kamtshadalarium Beljaev & Vasilenko ssp. n., Hydriomena impluviata djakonovi Beljaev ssp. n., Epirrita autumnata smetanini Beljaev ssp. n., Eupithecia kurilensis mironovi Beljaev ssp. n.). One species is recorded as new for the Russian Far East (Kamchatka Peninsula included) (Macaria halituaria [Guenée, 1858]). Two species are recorded as new for the Kamchatka Peninsula: Eupithecia antaggregata Inoue, 1977 and Eupithecia gelidata Möschler, 1860, and three species are recorded as new for the North Kuril Islands (Xanthorhoe derzhavini [Djakonov, 1931], Entephria caesiata [Denis & Schiffermüller, 1775] and Psychophora sabini [Kirby, 1824]). In addition, several species are reported for the first time in neighbouring territories: two species for Magadan Province (Xanthorhoe ferrugata [Clerck, 1759] and Xanthorhoe kamtshatica [Djakonov, 1929]); four species for North Koryakiya (Entephria caesiata [Denis & Schiffermüller, 1775], Eulithis populata [Linnaeus, 1758], Eupithecia gelidata Möschler, 1860, Carsia sororiata [Hübner, 1813]) and three species for Chukotka (Xanthorhoe kamtshatica [Djakonov, 1929], Xanthorhoe derzhavini [Djakonov, 1931] and Rheumaptera hastata [Linnaeus, 1758]).

New founds of 4 species of East Asian Geometridae: Megabiston plumosaria (Leech, 1891), Photoscotosia lucicolens (Butler, 1878), Callabraxas fabiolaria (Oberthür, 1884), and Dysstroma cinereata (Moore, 1867) in the extreme southwest of the Russian Far East are presented and discussed due to the actual distribution and its current trends. From them Ph. lucicolens is recorded from Russia and China (Jilin) for the first time. Identity of specimens of "Photoscotosia atrostrigata" and "Dysstroma cinereata" in Barcode of Life Database is revised to Ph. lucicolens and Paradysstroma corussaria (Oberthür, 1880) respectively. These founds probably indicate northern expansion of ranges of geometrid moth in accordance with the current climatic trend of global warming. Potential harmfulness of M. plumosaria in RFE is assumed. The validity of Dysstroma cinerea cesa Koçak & Kemal, 2001, as a substitute name for Dysstroma cinereata japonica (Heydemann, 1929) is substantiated.