To the Lepidoptera fauna of Evenk District (Russia, East Siberia)
Abstract
The article contains a list of 47 species of Lepidoptera from the Thyrididae, Crambidae, Tortricidae, Hesperiidae, Papilionidae, Pieridae, Lycaenidae, Nymphalidae (including Satyrinae), Geometridae, Erebidae families from the territory of Evenkia. 18 species are new to the North Yenisei Region in Catalog of Lepidoptera of Russia.
Newly Recorded Species:
Keywords
Lepidoptera, Thyrididae, Crambidae, Tortricidae, Hesperiidae, Papilionidae, Pieridae, Lycaenidae, Nymphalidae, Satyrinae, Geometridae, Erebidae, East Siberia, Krasnoyarsk Territory, Evenkia, fauna, new records
Introduction
Evenkia (Evenk district) is a vast territory in the north-east of the Krasnoyarsk Territory with a total area of 763,197 km², which in the past had the status of the Evenk Autonomous Okrug. In the north, this territory borders with the Taimyr district of the Krasnoyarsk Territory, in the south – with the Kezhma, Boguchany, Motygino and North Yenisey districts of the Krasnoyarsk Territory, in the west – with the Turukhan district of the Krasnoyarsk Territory, in the east – with the Republic of Sakha (Yakutia) and the Irkutsk region.
The study of the Lepidoptera fauna of the north of the Krasnoyarsk Territory has practically always focused attention on the mountainous regions of the Putorana Plateau and the northern territories of Taimyr Peninsula (Ménétriès 1851; Chernov 1973; Antonova 1976; Korshunov et al. 1982; Korshunov et al. 1985; Dubatolov et al. 1991; Kononenko et al. 1996; Churkin et Grieshuber 2001; Kozlov et al. 2006; Yakovlev 2020; Tatarinov and Kulakova 2022). There are no data on the fauna of southern Evenkia in the literature. In the catalog of Lepidoptera of Russia (Sinev 2019), Evenkia is included in the North Yenisei region along with the Taimyr district of the Krasnoyarsk Territory in column 21, where information on species finds is provided in generalized form.
At the end of June 2021, the second author collected Lepidoptera in some locations on the South-West of the Evenkia during the survey of the Yurubchen-Takhomovsky oil field. The collected material was processed and identified by the first author of this article, who discovered several species that had not previously been observed on the territory of Evenkia. Considering the weak entomological knowledge of Evenkia and the almost complete absence of materials from this territory, we decided to publish a short faunal list of all the collected material.
Materials and Methods
According to the zoogeographic zoning, the studied area belongs to the West Siberian group of the forest type of the Southern taiga complex of the population of the Central Siberian physico-geographical country in the middle taiga subzone. According to modern forest zoning, the territory in question belongs to the Angara-Tunguska forest province of the Central Siberian forest region, to the Podkamenno-Tunguska forest district of the middle taiga light coniferous forests. According to geobotanical zoning, the research area belongs to the taiga forests of the Central Siberian vegetation spectrum (Korotkov 1994). The predominant type of vegetation in the studied area is Picea-Larix (sometimes with a slight admixture of Betula and Pinus sibirica) shrubby grassy mossy forests and woodlands. The proximity of the territory under consideration to the border of the subzones of the middle and southern taiga is visually manifested by the admixture of Pinus sibirica and Picea in the composition of larch forests, as well as in a noticeable increase in the diversity of shrubby and grass-shrubby vegetation tiers. In a part of the territory in the zones of direct and indirect human influence, the tree layer of forests has been completely destroyed. Such sites are occupied by derived communities – the early stages of forest vegetation successions.
Formations of mixed forests dominated by Picea obovata, Larix sibirica, shrubby, grass and moss-lichen coniferous forests, as well as river and stream valleys were examined. All material processed within the framework of this article was collected on the territory of the Yurubchen-Takhomovsky oil field in Evenkia.
Geographical coordinates of the collecting sites
All situated on the territory of the Yurubchen-Takhomovsky oil field (60.402N, 96.333E) within a 10 km radius:
Results
The study documented 47 species of Lepidoptera, with 18 species representing new records for the North Yenisei Region.
THYRIDIDAE
CRAMBIDAE
TORTRICIDAE
HESPERIIDAE
PAPILIONIDAE
PIERIDAE
LYCAENIDAE
NYMPHALIDAE
SATYRINAE
GEOMETRIDAE
EREBIDAE
Acknowledgements
Authors thank Dr. I.A. Makhov (Zoological Institute of the Russian Academy of Sciences, St. Petersburg) for the help with determination of Xanthorhoe species; Sofya M. Saikina (Omsk, Russia) for her assistance in determination of some species.
The study of the first author was funded by the state assignment of the Ministry of Science and Higher Education of the Russian Federation (project FZMW-2023-0006 "Endemic, local and invasive arthropods (Arthropoda) of the mountains of South Siberia and Central Asia: a unique gene pool of a biodiversity hotspot".