East Of Russia Research Articles

Anthomyza gilviventris in Palaearctic Region: integrative taxonomy, variability and habitat associations of North European population (Diptera: Anthomyzidae)

Anthomyza gilviventris Roháček & Barber, 2016, hitherto known only from the Nearctic Region, is recorded from the Palaearctic Region (NE Sweden) for the first time. Specimens from the Swedish population have been compared with those of A. gilviventris from Canada and the USA and those of A. tschirnhausi Roháček, 2009 from the Kamchatka Peninsula (Far East of Russia). Both morphological and molecular analyses (BI and RAxML, based on seven DNA markers: 12S, 16S, 28S, COI, COII, CytB, ITS2) confirmed that the Swedish specimens belong to A. gilviventris. Because no specimen of A. tschirnhausi has been available for molecular study, the most diagnostic morphological characters used for separation of this species from A. gilviventris have been re-evaluated with respect to Swedish specimens, and their variability discussed. However, these differences, although stable, are relatively small and, consequently, the possibility that they fall within the limits of a single variable species has not been entirely eliminated. New biological information (habitat and host-plant associations) on the Swedish population of A. gilviventris is presented.

Geographical trace of the Yenisei Expedition of 1905: historical and modern significance

The little-known Yenisei Expedition of 1905 led by I.S. Sergeyev, K.V. Ivanov, and I.I. Islyamov is examined and described. Based on the study of archival documents, the preparation of the expedition in the highest state institutions of the Russian Empire and the specific circumstances of its journey from European seaports to the Russian river port in Yeniseisk are demonstrated. The significance of the expedition is analyzed in connection with its contemporary realities. An assessment of the importance of the waterway along the Yenisei River is also provided, which connects not only the South and North but also the West and East of Russia. The special role of certain participants, particularly I.I. Islyamov, who played a notable role in the geographical exploration of Russia but remained little-known to the general public and even many specialists, is emphasized.

ZOOGEOGRAPHICAL CHARACTERISTIC OF THE FAUNA OF THE GEOMETRID MOTHS (LEPIDOPTERA: GEOMETRIDAE) OF AMURSKAYA OBLAST

The paper provides a zoogeographical characteristic of the fauna of geometrid moth fauna (Lepidoptera: Geometridae) of Amurskaya Oblast (Far East of Russia) in the aspects of regional zoogeographic connections with neighboring territories and connections of local moth faunas with the main types of landscapes within the region. It has been established that the moth fauna of Amurskaya Oblast shows a clear similarity with the faunas of the southeastern part of the Far Eastern Federal District in terms of species composition and the participation of longitudinal and altitudinal-latitudinal groups of areas. Differences of the fauna of Amurskaya Oblast from other regions are due to its middle location on the south of the District and direct contact with the regions of Eastern Siberia. The fauna of Amurskaya Oblast is closest to that of Khabarovskii Krai in the species composition, and differs in a smaller proportion of species included in the Far Eastern group of areas. There are two faunal complexes of moths in Amurskaya Oblast: boreal (taiga), with a predominance of wide-area northern mid-latitude species, and nemoral, with a predominance of Far Eastern southern midand low-latitude species. Fauna of geometrid moths of Amurskaya Oblast south of ~53° N and west of the river Bureya is a transitional between boreal and nemoral, relatively clinal changing in the composition of the groups of areas in the direction of southeast – northwest. There is no distinct northern border of the transitional zone due to the high patchiness of the distribution of boreal and nemoral biocenoses. Communities of geometrid moths of nemoral forests occupy the extreme southeast of Amurskaya Oblast east of the river Bureya, which can be considered an only distinct boundary of westward distribution for many Far Eastern southern mid- and low-latitude species of geometrid moths. In the transitional zone, a meadow-forest subzone is distinguished, containing species of moths associated with the steppe and forest-steppe faunas of Central Asia and Northern China. Based on the structure of local moth faunas, the Siberian – East Asian faunal boundary in the Amurskaya Oblast appears as a wide sublatitudinal “transitional” zone, running from approximately 53° N latitude in the north to the lower reaches of the river Bureya (~50° N latitude) in the south of the region.

Plankton and benthos in Lake Blagodatnoye (Iturup Island) in summer

Lake Blagodatnoye is an oligohaline meromictic reservoir with the two-layer vertical structure — a typical lagoon lake for the southern Far East of Russia. Its upper layer is occupied by fresh water and the lower layer — by brackish water. The greatest warming of water (up to 22 оC) is observed at the lake surface in late July — early August. In total, 274 species are found in phytoplankton of the lake that is the largest number among all surveyed lagoon lakes in the south of Sakhalin-Kuril region. Bacillariophyta form the basis of the phytoplankton species composition (64 % of species). Abundance and biomass of the phytoplankton vary widely from 1.15 . 106 to 160.44 . 106 cells/L and from 0.41 to 6.14 g/m3, respectively. Several peaks are noted in seasonal dynamics of these indices. Zooplankton in the lake includes 25 species. All these species are typical for lagoon lakes in the south of Sakhalin-Kuril region. Wide variations in abundance and biomass are noted for the zooplankton: from 10550 to 99350 ind./m3 and from 47.1 to 231.0 mg/m3, respectively. Two types of species composition are identified in the summer succession of the phytoand zooplankton communities. The phytoplankton groups change at the border between June and July, when temperature at the surface passes the value of 14–16 оC. The key species of the early-summer phytoplankton are Cyanobacteria of genera Aphanocapsa, Chroococcus, Microcystis, Anabaena and Bacillariophyta of the genus Asterionella, whereas Aulacoseira granulata and A. granulata var. angutissima are the most abundant in late summer. For zooplankton, the boundary between the early-summer and late-summer seasons is shifted to middle July when the water temperature rises to 17–18 оC. Rotifera of Asplanchna priodonta, Cladocera of Bosmina sp., younger copepodites of Cyclops and Eurytemora caspica tethysiana dominate in early summer, whereas Bosmina sp. and juveniles of Cyclops — in late summer. Macrozoobenthos in the lake is represented by 25 species of invertebrates. The basis of species diversity is formed by amphibiotic insects. Number of species and total distribution density and biomass of macrozoobenthos mostly declined with the depth: there were 18 species, 370 ± 50 ind./m2, 3.023 ± 0.459 g/m2 in the intertidal zone, 14 species, 580 ± 59 ind./m2, 3.477 ± 0.447 g/m2 in the elittoral zone, and 10 species, 364 ± 36 ind./m2, 2.110 ± 0.248 g/m2 in the profundal zone, and dominant species were changed from Amphipoda Eogammarus barbatus in the intertidal zone to Chironomidae Chironomus dorsalis in the elittoral zone and to Gastropoda Cincinna japonica, Oligochaeta Lumbriculus variegatus and Chironomidae C. dorsalis in the profundal zone. The phytoplankton production in the coastal zone (depth of 0–3 m) was estimated as 552.86 kcal/m2 in June-August. Zooplankton consumed only 0.7 % of this production and produced 767 cal/m2. The production of non-predatory zoobenthos was 8644 cal/m2, with the inputs of 70.2 % for detritus feeders of 70.2 %, 11.8 % for macroalgae feeders, 11.6 % for deposit feeders, 5.8 % for grazers, and 0.6 % for filtered suspension feeders. A part of this production (6.9 %) was transmitted to the feed of carnivorous zoobenthos, so 8286 cal/m2 of the macrozoobenthos production could be used for fish feeding in the coastal zone. The phytoplankton production in the open waters (depth of 3–9 m) was estimated in 2580 kcal/m2. Zooplankton consumed 1.01 % of this production and produced 3578 cal/m2. The production of non-predatory zoobenthos in this zone was 6179 cal/m2 (detritus feeders 68.1 %, deposit feeders 18.8 %, grazers 6.6 %, macroalgae feeders 3.0 %, and filtered suspension feeders 3.5 %). The portion of 12.7 % of this production was transmitted to the feed of carnivorous zoobenthos. The total macrozoobenthos production in the open waters was 5708 cal/m2. The total reserve of food for fish, including zooplankton and benthos, was evaluated in 9286 cal/m2.

A revision of the Carnian/Norian boundary radiolarian assemblages: Insight from the biostratigraphic record of the Norian GSSP, Pizzo Mondello section (Sicily, Italy)

The Triassic was a critical period for a significant increase in the generic diversity of radiolarians after the disappearance of >80% of radiolarian genera during the Permian-Triassic mass extinction. In particular, the Upper Triassic radiolarian fauna is rich and has been documented in several world regions, such as North America, Western Europe, the Mediterranean area, Japan, the Philippines, Timor, and Far East Russia. In this study, a well-preserved and high-diversity fauna from a continuous pelagic-hemipelagic section deposited in western Tethys (Sicily, Italy) provides one of the most detailed radiolarian records of the Carnian-Norian boundary interval, which can be correlated worldwide, from high to low-latitude, from both sides of the Pangea and both Hemispheres. The 99 species belonging to 50 genera from this time interval have been collected from the Pizzo Mondello section (Sicanian Basin, Western Sicily), the selected GSSP for the base of the Norian stage, and then compared to the radiolarian associations documented in other coeval regions. Based on the occurrences of characteristic radiolarian species, we defined and proposed a new radiolarian biozonation across the Carnian-Norian boundary, which consists of five new assemblages (PM assemblage 1–5) that are correlated and calibrated to the already well-defined biozonation of bivalves, ammonoids, and conodonts.

A new genus Neococcotylus gen. et comb. nov. (Phyllophoraceae, Rhodophyta) from Russian Pacific coast

ABSTRACT We investigated fresh collections and dry specimens (attached and loose-lying forms) of the endemic species previously named ‘Coccotylus orientalis’ from the Russian Pacific coast using morphology and sequencing of the plastid rbcL gene and mitochondrial COI-5P. ‘Coccotylus orientalis’ formed a clade, which was separated from other Coccotylus species, including the generitype Coccotylus brodiei, and also distinct from other genera in the Phyllophoraceae. It was sister to a clade containing Stenogramma spp. Morphologically ‘C. orientalis’ clearly differs from Stenogramma by the location of cystocarpic sori along the upper edge of the blades, versus along the median line of the blades in Stenogramma. We describe Neococcotylus orientalis gen. nov. et comb. nov. Neococcotylus differs from Coccotylus by elongated, convex cystocarps located on both sides of the blade parallel to the upper edge and cruciately divided tetrasporangia, formed in catenate rows within nemathecia, in contrast to Coccotylus that has carpotetrasporangia. Neococcotylus is monotypic and only known from Peter the Great Bay (Far East of Russia, Sea of Japan).

History and Anti-History of the Partisan Movement in the East of Russia: Reflections on the Book Review of Krasnye partizany na vostoke Rossii. 1918–1922: deviatsii, anarkhiya i terror [Red partisans in the east of Russia. 1918–1922: Deviations, anarchy and terror], by A.G. Teplyakov (Moscow: Novoe literaturnoe obozrenie, 2023)

History and Anti-History of the Partisan Movement in the East of Russia: Reflections on the Book Review of Krasnye partizany na vostoke Rossii. 1918–1922: deviatsii, anarkhiya i terror [Red partisans in the east of Russia. 1918–1922: Deviations, anarchy and terror], by A.G. Teplyakov (Moscow: Novoe literaturnoe obozrenie, 2023)

Pest categorisation of Popillia quadriguttata.

The EFSA Panel on Plant Health performed a pest categorisation of Popillia quadriguttata (Coleoptera: Scarabaeidae), following a commodity risk assessment of bonsai Pinus parviflora grafted onto P. thunbergii from China, in which P. quadriguttata was identified as a pest of possible concern for the territory of the European Union. This is a univoltine polyphagous pest that occurs in eastern Asia from Vietnam northwards through eastern China and Taiwan, South Korea and into Far East Russia. Hosts include species of fruit trees within the genera Malus and Prunus, trees of forestry and environmental importance such as Quercus and Ulmus, shrubs such as Wisteria, soft fruit such as Rubus, grasses, including amenity turf and field crops such as potatoes, maize and soybean. Adults feed on host leaves, tender stems, flower buds, flowers and fruits; larvae feed on host roots. In northern China P. quadriguttata is a major pest of soybean; in South Korea, P. quadriguttata is one of the most serious insect pests of golf course turf. P. quadriguttata could enter the EU on various pathways including infested soil and growing media accompanying host plants for planning. Biotic factors (host availability) and abiotic factors (climate suitability) suggest that large parts of the EU would be suitable for establishment. Local spread would be mainly via natural dispersal of adults. Long distance spread would be facilitated by the movement of eggs, larvae and pupae infesting soil especially with plants for planting; adults could spread on plants for planting without soil. Economic and or environmental impacts would be expected on a range of plants if P. quadriguttata were to establish in the EU. Phytosanitary measures are available to reduce the likelihood of its introduction. P. quadriguttata satisfies all of the criteria that are within the remit of EFSA to assess for it to be regarded as a potential Union quarantine pest.

Architectural and structural methods for modernization of buildings of the first mass series

Currently, about 100 million m2 of housing are built annually in the Russia. The existing housing stock is estimated at 3.3 billion m2. In the volume of the existing housing stock, a significant share is made up of buildings of the so-called first mass series. They were built in the 50s—80s of the XX century according to standard designs, among which panel buildings predominate. As the housing market becomes saturated, the emphasis in the construction industry will gradually shift from new construction towards the renovation and modernization of existing buildings. The issues of modernization and reconstruction of buildings of the first mass series are relevant not only for our country. A significant number of such buildings were built in East Germany and the Baltic countries. Examples of the implementation of modernization programs for serial buildings in East Germany and Russia are shown. Specific activities and recommendations that can be implemented within the framework of such programs are given, the risks of their implementation and sources of financing are described.

Состояние наземных путей сообщения и дорожное строительство на юге Дальнего Востока России во второй половине XIX в. – начале ХХ в.

The article examines the initial period of road construction and the formation of transportation routes in the southern Far East of Russia following its annexation to the Russian Empire until the early XX century. The term “communication routes” encompasses various types of roads designed for the transportation of people and goods, including postal routes, pack trails, dirt roads, and clearings. The construction of roads in the Lower Amur region near the city of Nikolaevsk, in the Amur Oblast, as well as in the Primorsky Krai, is considered. In the Lower Amur region, the construction of transportation routes was driven by strategic defense needs. In the Amur Oblast, the primary incentive for creating transportation infrastructure was economic needs, driven by the development of gold deposits. Postal routes, which operated in the region’s uninhabited conditions, played an important role in road construction. By the late XIX century, the construction of dirt roads in the Primorsky Krai was greatly influenced by the construction of the Ussuri Railway. Conclusion dwells upon the fact that the development of transportation routes in the region corresponded to the capabilities of its time.

Morphostructural, Chemical and Genetic Features of Native Gold in Brown Coals from the Yerkovetsky Deposit, Far East Russia

We studied the morphostructural features and chemical composition of micron and submicron particles of native gold from brown coals and overcoal sediments of the Yerkovetsky deposit (Zeya-Bureya sedimentary basin, Far East Russia). The samples of coal and host rocks in the form of thin sections, as well as coal particles and grains of native gold obtained during the process of dispersion and the fractionation of loose and crushed samples divided according to size and density, were analyzed using scanning electron microscopy in combination with X-ray microanalysis, involving various visualization modes. It was revealed that native gold is syngenetic with the mineralization of brown coals, and microphases dispersed in the minerals of overcoal loose and sandy-clay sediments were the source of native gold. In coal, gold is accumulated at the stages of formation (alluvial and eolian, including terrigenous and ionogenic subtypes) and the diagenesis of coal deposits (ground-infiltration subtype). A significant part of the mineralization process of coals and the formation of microparticles of native gold was contributed to by the descending water infiltration of polycomponent colloid solutions. During the dehydration of hydroxysiliconized iron-based hydrogels, mineral phases have an unstable composition and floccular structure and contain submicron gold particles. The coatings of all gold microparticles have identical origin and composition. Coal beds that border host rocks are an open system with a constant inflow of the substance, which leads to the gradual formation of polycomponent aggregated particles in micro cavities. Part of the gold in coals occurs as sulfur-bearing complexes dissolved in pore water. The key factor in the migration and deposition of gold in coals is the inorganic substances involved in the processes of coal mineralization. Organic substances play a more passive role and have medium-forming, fractionating (colloid, molecular, and ionic sieves), and accumulation functions.

Detection of Traveling Ionospheric Disturbances Triggered by 2022 Tonga Volcanic Eruptions Through CubeSats Coherent GNSS‐Reflectometry Measurement

AbstractWe present two case studies of traveling ionospheric disturbances (TIDs) triggered by the 2022 Tonga volcanic eruption observed by low‐cost CubeSat‐based global navigation satellite system reflectometry (GNSS‐R) measurements. The GNSS‐R data used in this work are from Spire Global CubeSats. Our analysis shows that coherent GNSS signals reflected over the ocean can be used to derive precise ionospheric total electron content (TEC) measurements. The first case shows clear TID structures with a TEC disturbance magnitude of ∼1 TEC unit (TECu) and horizontal wavelength of ∼330 km over Northwest Australia on the day of Tonga volcanic eruption. The second case shows the TIDs with ∼0.05 TECu disturbance magnitude and horizontal wavelength of ∼240 km over East Russia the day after the eruption. The second case is likely a TIDs propagated outward from Tonga for the second time after it traversed around the Earth. The GNSS‐R observed TID may be associated with the incident or reflection signal ray path. In this paper, the appropriate ray path was identified using simultaneous observations from ground receiver networks in the areas of both ray paths.

Un courant d’Est venu à l’Ouest via l’adaptateur scénique Virgil Tănase

The article An Eastern current coming to the West, through Virgil Tănase’s stage adaptations addresses the influences of two literary and theatrical cultures from the East (Romania and Russia) on the work of Virgil Tănase as a stage adapter in France. By scrutinizing the way in which the great Russian authors from the 19th century to the present day through the Soviet era establish themselves as a frame of reference for Tănase’s work as a stage adapter and by addressing the way in which this comes to fruition, within the stage adaptations created in France by the Franco-Romanian writer (often performed abroad too), a dreamlike aesthetic born in Romania in the 1960s, the study will show that Virgil Tănase, also known as a translator, managed to create a scenic poetics in which the words are at the service of the melody just as the scenography is at the service of the theatrical metaphor. By highlighting the ontological scope of the character and especially the actor, the stage adaptations developed by Tănase from canonical works of Eastern and Western literature finally converge towards a common goal, representative of his writer’s gesture: all aim to awaken in spectators their freedom to think and create, to revive each person’s faith in the fulfilment of their vocation, like the Proustian narrator of the novel In Search of Lost Time. Keywords: adaptation for stage, theatrical metaphor, aesthetic onirism, Eastern Block, translation, Virgil Tănase, Dostoïevski, Proust.

Drivers of the spatiotemporal dynamics of the local breeding population of the endangered Scaly-sided Mergansers Mergus squamatus

Scaly-sided Merganser is an endangered species confined to eastern Asia, primarily breeding in southeast Russia and northeast China. Its breeding range is quite large, with limited information on population dynamics. The Kievka River catchment in far east Russia is one of the most densely populated breeding grounds, providing the only extensive, long-term monitoring on breeding Scaly-sided Merganser. This study assessed the current status of Scaly-sided Merganser and investigated the environmental factors influencing the population. From 2014–2021, the population size at each river reach fluctuated with no directional trends, while the density of Scaly-sided Merganser increased. The result suggested a higher concentration of breeding Scaly-sided Merganser in Kievka River catchment in recent years, particularly preferring downstream area. The species also demonstrated an affinity to less riparian vegetation and higher flow rates. Notably, river flow rate emerges as a potential key issue for designing environmental flows of the breeding habitat for Scaly-sided Merganser, presenting a challenge for researchers and managers.

Modelling Distribution of an Endangered Longhorn Beetle, Callipogon relictus (Coleoptera: Cerambycidae), in Northeast Asia

Based on our own field data and using modeling of modern potential ranges (in the MaxEnt program), an assessment of the spatial distribution of the rare representative of the longhorn beetle family, Callipogon (Eoxenus) relictus Semenov 1899, was conducted in northeast Asia (220 geographic locations). The generated maps of the potential range of C. relictus demonstrate a high likelihood of the species’ presence in the upland areas of southern far east Russia, the provinces of northeastern China, and the Korean Peninsula. Field data also indicate the extensive association of the species with undisturbed broadleaf and coniferous–broadleaf forests in northeast Asia. Maps of the potential distribution of C. relictus in northeast Asia have been compiled based on four climate change scenarios from the present time to 2070. Under all of the climate scenarios used, it is shown that suitable habitats for the species will persist in certain areas of Primorsky Krai, as well as neighboring provinces of the People’s Republic of China and a small enclave on the Korean Peninsula in Gangwon-do province. Significant reduction in suitable conditions for the rare longhorn beetle will occur in the rest of its distribution range.

New results of testing the attractant EFETOV-2 in the Far East of Russia, Siberia and South Africa

The sex attractant butan-2-yl dodec-2-enoate (a patented name ‘EFETOV-2’) synthesised at the Crimean Federal University was tested in the Far East of Russia and Eastern Siberia in 2022 and the Republic of South Africa in 2019. The males of three Zygaenidae species (Lepidoptera) were attracted in our field experiments, viz. Illiberis (Nikilliberis) kardakoffi Alberti, 1951, Rhagades (Rhagades) pruni ([Denis & Schiffermüller], 1775) (both Procridinae) and Praezygaena ochroptera (Felder, 1874) (Zygaeninae). For I. (N.) kardakoffi and P. ochroptera data on attractants were not previously known.

Review of amphipods of the family Pleustidae Buchholz, 1874 (Amphipoda) from the coastal waters of Sakhalin Island (Far East of Russia). III. Subfamily Pleustoidinae Bousfield & Hendrycks, 1994.

The taxonomic analysis of subfamily Pleustoidinae Bousfield & Hendrycks, 1994 is performed. A review of subfamily Pleustoidinae from the shelf of Sakhalin Island and adjacent water area based on all literature and own data is provided. The diagnoses of the subfamily Pleustoidinae and the genus Pleustoides Gurjanova, 1972 have been clarified. Based on new material, the new species Pleustoides tridens sp. nov. is described from the shelf of Sakhalin Island. The species P. ochoticus Gurjanova, 1972 is re-described and its status is clarified. A key to the amphipod of the genus Pleustoides is given.

Coast Effect in Magnetotelluric Data from Continental Southern Far East of Russia

Coast Effect in Magnetotelluric Data from Continental Southern Far East of Russia

Ants of Kamchatka: checklist, DNA-barcoding and key (Hymenoptera, Formicidae)

Kamchatka is a remote volcanic peninsula in the sub-arctic Far East of Russia. Its myrmecofauna has been scientifically addressed several times. However, previous species lists are contradictory in part and a modern study seems to be lacking. Based on literature review, I conclude that 12 species and 4 genera (Camponotus, Formica, Leptothorax and Myrmica) of ants may be native to Kamchatka. Of those, 9 were found in the field, 3 having a Holarctic, 3 a trans-Palearctic and 3 an East Palearctic distribution. Most species diversity was found at mid-elevations, in pine shrubs and mixed forests, while deciduous forests and open habitats at lower altitudes were surprisingly species poor. DNA-barcoding was performed for 57 specimens/9 species. Genetic diversity (COI) was low for 8/9 species, with the exception of Leptothorax acervorum, for which all samples were of a different haplotype and 2 haplogroups were identified. For the encountered Holarctic and trans-Palearctic species, closely related haplotypes (<0.7% raw distance) occur in Europe and/or North America. Some Formica ants were morphologically atypical, with workers partially resembling those of F. fusca, while gynes identified as F. lemani. Morphometric analysis and DNA-barcoding suggested that all these specimens belong to a single species, F. lemani. Standard images for all specimens and an illustrated key to the worker caste are provided.

Празднование годовщины установления антибольшевистской власти в Сибири 7 июня 1919 г. По документам Омской городской думы

The paper analyzes the story of the history of Omsk city self-government, associated with the attempt to approve a new public holiday in anti-Bolshevik Siberia - the anniversary of the entry of White-Czech troops into Omsk. The connection of the investigated issue with the historiography of the problem is given, on this basis the relevance of the work is connected with the introduction into the scientific turnover of unpublished sources from the funds of the Historical Archive of the Omsk region. These documents allow us to detail the emergence, discussion and coordination of the initiative, the course and results of the official celebrations in Kolchak's Omsk on June 7, 1919, positioned as the day of "liberation of Siberia" and "revival of Russian statehood". The importance of those events is connected with the fact that Omsk then had the official status of the capital of anti-Bolshevik Russia. The aim of the paper is to analyze the preparation and results of the celebration on the basis of new sources - minutes of the Omsk City Duma meeting within the period - the end of May and the beginning of June 1919. The theoretical basis of the research is a combination of approaches (institutional, systemic, anthropological) and methods (problem-chronological, comparative-historical) traditional for historical science. This makes it possible to establish the degree of participation of the institutions of power in the attempt to establish a new public holiday of potential significance for the entire anti-Bolshevik Siberia, as well as the role of specific socio-political figures in the realization of that initiative. The nature and course of the celebration demonstrate the conservative views of the authorities in White Omsk (both at the level of the Russian government and the City Duma), as well as the special importance of the festivities of June 7, 1919 for the highest circles of the anti-Bolshevik statehood. In addition, the study of the celebrations in the Kolchak capital prompts thoughts about the significant influence of the religious factor in the Civil War in eastern Russia. The study is an example of when a casual episode of local history acquired all-Russian significance. The work also emphasizes the inviolable postulate of historical research that for a full-fledged assessment of events it is essential to take into account the widest possible range of sources. The publication may be of interest to academic specialists studying the Civil War and anti-Bolshevik movement in the East of Russia, the history of public holidays, as well as socio-political and everyday life in the era of social cataclysms.