Database of Amphibia distribution in West Siberia (Russia).

Background: West Siberia is a large region in North Eurasia, which harbours multiple climatic zones, landscape types and biomes. Its amphibian fauna is characterised by a combination of European and Asian species. For many species, this region is the place where the limits of their global ranges are located (, , ).

Description of new genus Baikalozercon (Acari: Mesostigmata: Zerconidae) with two new species from South Siberia Mountains (Russia).

This paper describes a new genus and two new species of mites in the family Zerconidae collected from litter and soil in the South Siberia Mountains. Baikalozercon gen. nov.

A new species of the genus Proctogastrolaelaps McGraw amp; Farrier (Acari: Melicharidae) from the Far East of Russia, and contributions to knowledge of this genus.

We describe a new mite species from the Far East of RussiaProctogastrolaelaps subsolanus Joharchi Marchenko sp. nov. (Acari: Melicharidae).

Analysis of Genome Variants Identified in the Territories of Volga Federal District.

Hemorrhagic fever with renal syndrome (HFRS) is a zoonotic disease commonly diagnosed in the Volga Federal District (VFD). HFRS is caused by Puumala orthohantavirus (PUUV), and this virus is usually detected in bank voles as its natural host (Myodes glareolus). The PUUV genome is composed of the single-stranded, negative-sense RNA containing three segments.

Citrobacter freundii, a natural associate of the Colorado potato beetle, increases larval susceptibility to Bacillus thuringiensis.

Background: We assume that certain representatives of gut microflora mediate immune changes during dysbiosis, accelerating septicemia caused by Bacillus thuringiensis.

Results: Co-introduction of Citrobacter freundii with Bacillus thuringiensis var. tenebrionis (morrisoni) (Bt) led to an increase in Colorado potato beetle (CPB) larval mortality to 69.

Academ Virus, a Novel Hantavirus in the Siberian Mole () from Russia.

To date, six hantavirus species have been detected in moles (family Talpidae). In this report, we describe Academ virus (ACDV), a novel hantavirus harbored by the Siberian mole () in Western Siberia. Genetic analysis of the complete S-, M-, and partial L-genomic segments showed that ACDV shared a common evolutionary origin with Bruges virus, previously identified in the European mole (), and is distantly related to other mole-borne hantaviruses.

The Phylogenetic Relationships of the Fanniidae within the Muscoid Grade (Diptera: Calyptrata) Based on the Musculature of the Male Terminalia.

The abdominal and pregenital segments and the genitalia were studied in males of (Zetterstedt, 1845), (Linnaeus, 1761) and (Zetterstedt, 1838). In comparison with the remaining members of the muscoid grade, in addition to the symmetry of the pregenital segments, significant reductions of the sclerites and musculature of the male terminalia have been observed in Fanniidae. The muscular structure of pregenital segments confirms that the fused pregenital ring is syntergosternite VI + VII + VIII.

The Handsome Cross Grasshopper (Germar, 1825) (Orthoptera: Acrididae) as a Neglected Pest in the South-Eastern Part of West Siberian Plain.

is a widely distributed acridid over the Eurasian semi-arid territories, from the Atlantic coast to the Pacific coast. In many semi-arid territories, was and is the most important pest, but in the south-eastern part of West Siberian Plain, it was not considered a pest until the 1960s. We compared two sets of data on the acridid distribution in the region: before 1960 and from 1961 until 2021.

Narrow Genetic Diversity of Symbionts in Acrididae Grasshopper Hosts (Insecta, Orthoptera).

Bacteria of the genus are maternally inherited symbionts of Nematoda and numerous Arthropoda hosts. There are approximately 20 lineages of , which are called supergroups, and they are designated alphabetically. strains of the supergroups A and B are predominant in arthropods, especially in insects, and supergroup F seems to rank third.

Flexibility and rigidity in hunting behaviour in rodents: is there room for cognition?

Predatory hunting is a complex species-typical behaviour involving different skills, some of which may include learning. This research aims to distinguish between rigid and flexible parts in live-insect hunting behaviour in nine herbivorous and granivorous rodent species, and to find out whether there is room for cognition in this activity. In laboratory experiments, all species studied manifest skilful attacks towards insects in a manner that is typical for specialised predators chasing a fleeing prey.

The gut microbiota of parasitizing the swim bladder of the nosed charr morph complex in Lake Kronotskoe (Kamchatka, Russia).

Using the approach of sequencing the V3-V4 region of the 16S rRNA gene, we have analyzed the bacterial diversity associated with the gut and "body" (other parts of nematode after dissection: cuticle, epidermis and longitudinal muscles, etc) of parasitizing the swim bladder of different morphotypes of the nosed charr. Comparisons of the gut microbiota of nematodes with their "body" has revealed that the associated microbiota are closely related to each other. Taxonomic analysis indicated that the relative abundances of the dominant nematode-associated bacteria varied with individual fish.

Sex Specificity in Innate Immunity of Insect Larvae.

The innate immunity of insects has been widely studied. Although the effect of sex on insect immunity has been extensively discussed, differences in immunity between the sexes of larvae insects remain largely unstudied. Studying larval sex differences in immunity may provide valuable information about the mechanisms underlying the insect immune system, which, in turn, can be valuable for the development and improvement of pest management.

Two new species of the genus Nephelomilta Hampson (Lepidoptera: Erebidae: Arctiinae) from China and Indonesia.

Two new species of the genus Nephelomilta Hampson, 1900 are described: Nephelomilta wangmini sp. n. (China, Guangdong) and Nephelomilta devosi sp.

A new species of the genus Dorytomus Germar, 1817 (Coleoptera, Curculionidae) from Rovno amber.

A new species, Dorytomus mikhailovi sp. n., from late Eocene Rovno amber is described and illustrated.

Protomauroania mikhailovia new species of malachite beetles (Coleoptera, Dasytidae) in Rovno amber.

A new species of malachite beetles, Protomauroania mikhailovi Tshernyshev Perkovsky, sp. n. is described from late Eocene Rovno amber.

A review of the Stigmatophora palmata (Moore, 1878) species-group (Lepidoptera: Erebidae: Arctiinae) with description of a new species from China.

The Stigmatophora palmata (Moore, 1878) species-group is reviewed. A new species, S. danieli Volynkin, S.

Feeding regimes affected the circadian rhythms of pancreatic digestive enzymes and somatic growth in flathead grey mullet (Mugil cephalus) fry.

The effect of different feeding regimes on the circadian rhythms of pancreatic digestive enzyme activities was evaluated in Mugil cephalus fry weighting 0.34 ± 0.01 g.

New cestode species of the genus Neoskrjabinolepis Spassky, 1947 (Cyclophyllidea: Hymenolepididae) from the Common Shrew (Sorex araneus L.) in Europe.

Neoskrjabinolepis (Neoskrjabinolepis) yanchevi n. sp. is described from common shrews Sorex araneus L.

The microsporidium Nosema pyrausta as a potent microbial control agent of the beet webworm Loxostege sticticalis.

The microsporidium Nosema pyrausta is an important mortality factor of the European corn borer, Ostrinia nubilalis. The present study was aimed at N. pyrausta virulence testing to the beet webworm (BW), Loxostege sticticalis.

Association between Rhythmic Variations of Mouse Body Temperature with 4-16-Minute Periods and Geomagnetic Undulations in Corresponding Frequency Range Pc5/Pi3.

The rhythmic variations of body temperature in two groups of mice located in Moscow and Novosibirsk were compared with geomagnetic undulations within Pc5/Pi3 (1-5 mHz) range measured in Borok and Novosibirsk middle-latitude geophysical observatories located at the same longitudes as the examined mice. The spectral maxima of geomagnetic undulations and body temperature variations were observed with greatest probability at the frequencies of 1.6, 2.

Entomotoxic Activity of the Extracts from the Fungus, and Its Major Metabolite, Tenuazonic Acid.

The study of fungal antibiotics in their competitive interactions with arthropods may lead to the development of novel biorational insecticides. Extracts of MFP253011 obtained using various methods showed a wide range of biological activities, including entomotoxic properties. Analysis of their composition and bioactivity allowed us to reveal several known mycotoxins and unidentified compounds that may be involved in the entomotoxic activity of the extracts.

Effect of the Entomopathogenic Fungus Beauveria bassiana on the Development of Faba Bean (Vicia faba) Diseases in the Field Conditions.

Several ascomycetous entomopathogenic fungi, including species in the genera Beauveria, are plant symbionts/endophytes and are termed as endophytic insect-pathogenic fungi. It was shown that the fungus Beauveria bassiana (BBK-1 strain) successfully colonized Vicia faba bean plants in laboratory and field conditions of Western Siberia. The B.

Geographic Distribution and Phylogeny of Soricine Shrew-Borne Seewis Virus and Altai Virus in Russia.

The discovery of genetically distinct hantaviruses (family ) in multiple species of shrews, moles and bats has revealed a complex evolutionary history involving cross-species transmission. Seewis virus (SWSV) is widely distributed throughout the geographic ranges of its soricid hosts, including the Eurasian common shrew (), tundra shrew () and Siberian large-toothed shrew (), suggesting host sharing. In addition, genetic variants of SWSV, previously named Artybash virus (ARTV) and Amga virus, have been detected in the Laxmann's shrew ().

Localization of the proteinase inhibitor activity in the fish cestode Eubothrium rugosum.

The mechanisms enabling fish tapeworms to avoid proteolytic attacks by digestive enzymes of their fish host have been studied in less detail compared with mammalian cestodes. This study aimed to assess the inhibitory ability towards trypsin and chymotrypsin in Eubothrium rugosum, an intestinal parasite of burbot Lota lota, and establish its localization in the tapeworm. To this end, the worms were treated with Triton X-100 followed by differential centrifugation to isolate the tegumental brush border membrane.