New data on the changes in the abundance and distribution of several species of beetles (Coleoptera) in European Russia and the Caucasus

Changes in the abundance and distribution of selected species of beetles in European Russia and in the Caucasus are reported. Most of these species have been recorded from the Northwestern Caucasus in the last 10–15 years. The abundance and distribution during the last two years have changed most sharply in the introduced species, the Harlequin lady beetle Harmonia axyridis and two East Asian bruchids, Megabruchidius dorsalis and M. tonkineus. In 2016, the latter has been found in Georgia for the first time, and Harmonia axyridis was found in St. Petersburg. Abundance of the weevil Alcidodes karelinii with the range situated mostly east of the Caucasus and Volga River remains in Northwestern Caucasus at about the previous level. The flea-weevil species, a leaf miner on Ulmus pumila, misidentified previously as Orchestes mutabilis, is described in this paper as Orchestes steppensis sp. n. based on the material from Russia, Kazakhstan, Mongolia and Northern China; no its further distribution westward in 2015–2016 has been found. This species, rapidly widening its range in North America in the recent decade, is misidentified there as Orchestes alni. A key for differentiation of Orchestes alni, O. mutabilis and O. steppensis sp. n. is provided with photographs of adults of all three species. Magdalis armigera has increased abundance in Northwestern Caucasus in 2016 and was for the first time found in Northwestern Russia (Pskov Province) in 2015. Regular faunistic surveys during several decades provide a possibility of recording considerable changes in the abundance of some common species of Coleoptera, often associated with changes in their distribution.     

A review of species of the subgenus <Emphasis Type="Italic">Taeniosticha</Emphasis> Motsch., genus <Emphasis Type="Italic">Chrysolina</Emphasis> Motsch. (Coleoptera,Chrysomelidae), distributed in the Dzungar Ata Tau and Tien Shan Mt. Ranges,with descriptions of two new species

Species of the subgenus Taeniosticha, genus Chrysolina, from the Dzungar Ala Tau, Northern and Central Tien Shan, are revised. A key to the species and figures of the aedeagus of each species are given. Two new species, Chrysolina klimenkoi sp. n. and Ch. sairannurica sp. n., are described from Southeastern Kazakhstan and Northwestern China. Two new species-groups are distinguished: the Ch. alatavica species-group distributed in the Dzungar Ala Tau and Boro-Khoro Mountain Ranges, and the Ch. tianshanica species-group with its members occurring in the Northern and Central Tien Shan. A scheme of the species distribution is given.     

Discovery of Emsian Ammonoids in the Northern Caucasus

The Lower Devonian beds of the Bechasyn zone of the Northern Caucasus (Kabardino-Balkaria, middle reaches of the Malka River) contain an assemblage of the Early Emsian Ammonoids including the characteristic genera Erbenoceras, Mimosphinctes, Teicherticeras, Mimagoniatites, and Gyroceratites. The taxonomic composition of the assemblage is similar to that of synchronous assemblages of Turkey and Tian Shan, differing from the assemblage of Morocco by the presence of Teicherticeras. Different approaches to the taxonomy of the family Teicherticeratidae are discussed and it is concluded that it is in need of serious revision. A new species Teicherticeras lakhranense is described.     

Ammonites of Tethyan Origin in the Ryazanian Stage of the Russian Platform: Genera <Emphasis Type="Italic">Transcaspiites</Emphasis> Luppov and <Emphasis Type="Italic">Karasyazites</Emphasis> gen. nov.

This paper presents the results of the study of ammonites of the family Himalayitidae from the Surites spasskensis Zone of the Ryazanian Stage of Central Russia. The new taxa Transcaspiites tscheffkini sp. nov., T. transitionis sp. nov., and Karasyazites gen. nov., with the type species Subalpinites bajarunasi Luppov, are described. The hypothesis that Transcaspiites Luppov originated from the genus Riasanites Spath is proposed. The analysis of the taxonomic composition of ammonites allows the Neocosmoceras–Septaliphoria semenovi regional zone of Mangyshlak to be correlated with the Spasskensis zone of the standard scale of the Ryazanian Stage.     

New and little known species of gray moths (Lepidoptera,Gelechioidea, Blastobasidae) from Eurasia

Some additional data on the taxonomy of Blastobasidae are reported. Four new Palaearctic species are described: Blastobasis ponticella sp. n. from the Crimea, North-Western Caucasus, and Transcaucasia; B. centralasiae sp. n. from Central Asia; Hypatopa ibericella sp. n. from the Iberian Peninsula, and Pseudohypatopa beljaevi sp. n. from the Russian Far East (Primorskii Territory). Based on examination of the type material, the following new synonymies are established: Blastobasis phycidella (Zeller, 1839) [= B. roscidella (Zeller, 1847), syn. n.]; Hypatopa inunctella (Zeler, 1839) [= Hypatima haliciella Klemensiewicz, 1898; =Hypatima fuscella Klemensiewicz, 1898, syn. n.]. Blastobasis magna Amsel, 1852, stat. n., originally described as a subspecies of B. roscidella, is considered a distinct species with the range extending throughout the Western Mediterranean.     

A Review of the Distribution and Phylogenetic Relationships of Bristletails of the Genus <Emphasis Type="Italic">Haslundichilis</Emphasis> Wygodz. (Archaeognatha,Machilidae) with Description of a New Species from Daghestan

A review of geographic distribution, phylogenetic relationships, and evolutionary trends of six species of the South Palaearctic genus Haslundichilis Wygodzinsky is performed for the first time. Bristletails of the genus Haslundichilis are common in temperate forest and steppe open landscapes in the foothills and mountains of the East Caucasus, Central Asia, Northwest and East China, and South Korea. The genus originated in the forest landscapes of the West Stenopean (mixed) province wherefrom its representatives spread as far eastwards as South Korea and as far westwards as the mountains of Central Asia and the East Caucasus. The new species Haslundichilis daghestanicasp. n. is the closest to H. afghani, from which it differs in a greater body size, narrower eyes, and more developed sensory fields on the fore femur of the male.     

A new invasive species of buprestid beetles in the Russian fauna: <Emphasis Type="Italic">Lamprodila</Emphasis> (<Emphasis Type="Italic">Palmar</Emphasis>) <Emphasis Type="Italic">festiva</Emphasis> (L.) (Coleoptera,Buprestidae), a pest of Cupressaceae

The buprestid beetle Lamprodila (Palmar) festiva (L.) (Coleoptera, Buprestidae, Poecilonoini), an invasive pest of cultivated Cupressaceae such as Thuja, Chamaecyparis, Cupressus, and Juniperus in the Greater Sochi area (the Russian Black Sea coast), is recorded for the first time for Russia and the former USSR. Data on the systematic position, diagnostic characters, distribution, host plants, biology of the new pest, and its damage to urban plantations are discussed. Recent records of this species in the new areas of Central and Eastern Europe as well as on the Black Sea coast of the Caucasus suggest expansion of its range during the recent decades.     

Two New Species of the Genus <Emphasis Type="Italic">Carabus</Emphasis> Linnaeus, 1758 (Coleoptera,Carabidae) from the South Caucasus

Based on the material collected by the authors in Central and West Georgia, the Caucasus, in 2014–2017, Carabus (Archiplectes) zubovisp. n. from Kvemo Svaneti, belonging to the komarowi species-group, and Carabus (Tribax) shtavlerensissp. n. from Zemo Svaneti, belonging to the agnathus species-group, are described. The distribution of the new species is mapped.     

On the First Finds of the Genus <Emphasis Type="Italic">Djanaliparkinsonia</Emphasis> (Stephanoceratidae,Ammonoidea) in the Upper Bajocian of the Northern Caucasus

The genus Djanaliparkinsonia Kutuzova, 1975 was originally described as an endemic subgenus of the genus Parkinsonia (family Parkinsoniidae of the superfamily Perisphinctoidea) from the Upper Bajocian (middle member of the Degibadam Formation) of the Gissar Range (Uzbekistan). A new species D. alanica sp. nov. is established from the Upper Bajocian Garantiana garantiana Zone (upper member of the Djangura Formation) based on occurrences in the Northern Caucasus (Karachay-Cherkessia). Macroconchs and microconchs of the new species are described from the two localities on the Kuban and Kyafar rivers. Djanaliparkinsonia sp. is identified from the lower subzone of the Parkinsonia parkinsoni Zone of the Kyafar River. The species composition and geographic range of Djanaliparkinsonia are expanded: a species previously described from Germany as Garantiana bentzi Wetzel, 1954 also assigned to the genus. The genus Djanaliparkinsonia is assigned to the subfamily Garantianinae of the family Stephanoceratidae (superfamily Stephanoceratoidea).     

Findings of new and rare fish species in the coastal zone of the Crimea (the Black Sea)

Characteristics of seven Atlantic-Mediterranean fish species are provided. Of them, four (gobies—yellow-headed Gobius xanthocephalus and red-mouthed G. cruentatus, incognito blenny Parablennius incognitus, and greater pipefish Syngnathus acus) were either first found in the Black Sea coastal zone of the Crimea, or their findings were doubted, and three species (thin-lipped grey mullet Liza ramada, European barracuda Sphyraena sphyraena, and Black Sea salmon Salmo trutta labrax) are very rare. Over the last decade, the authors recorded 15 fish species; of them, seven Atlantic-Mediterranean species have dispersed along the Crimean coasts by now, one endemic of the far eastern seas (chameleon goby Tridentiger trigonocephalus) has naturalized in Sevastopol Bay, four invading species, freshwater by origin, permanently occur in the estuary zones of the peninsula; the remaining three species are known from single findings and apparently belong to the category of accidental fish. An increase in the species composition of ichthyofauna off the Black Sea coasts of the Crimea results from the on-going process of mediterranization—the invasion in the estuary of freshwater tolerant species at the expense of accidental species that penetrated here either independently or with ballast waters.     

The endosymbiont <Emphasis Type="Italic">Wolbachia</Emphasis> in Eurasian populations of <Emphasis Type="Italic">Drosophila melanogaster</Emphasis>

The endosymbiotic α-proteobacteria Wolbachia is widely spread among arthropods and Filariidae nematodes. This bacterium is transmitted vertically via a transovarian route. Wolbachia is a cause of several reproductive abnormalities in the host species. We analyzed the isofemale lines created using flies collected from Drosophila melanogaster natural populations for infection with the endosymbiont Wolbachia. Wolbachia were genotyped according to five variable markers: the presence of insertion sequence IS5 in two loci, the copy number of two minisatellite repeats, and an inversion. Overall, 665 isofemale lines isolated from the populations of D. melanogaster from Ukraine, Belarus, Moldova, Caucasus, Central Asia, Ural, Udmurtia, Altai, West and East Siberia, and Far East in 1974 through 2005 were used in the work. The samples from Ukrainian, Altaian, and Middle Asian populations were largest. The infection rate of D. melanogaster populations from Middle Asia, Altaian, and Eastern Europe (Ukraine, Moldavia, and Belarus) with Wolbachia amounted to 64, 56, and 39%, respectively. The D. melanogaster population from the Caucasus displayed heterogeneity in the genotypes of this cytoplasmic infection. The Wolbachia genotype wMel, detected in all the populations studied, was the most abundant. The genotype wMelCS2 was always present in the populations from Middle Asia and Altai and was among the rare variants in the D. melanogaster populations from the Eastern Europe. Single instances of the Wolbachia genotype wMelCS occurred in a few flies from the Central Asian and Altai populations, but was not found this genotype in the other regions.     

The origin and taxonomic position of the Crimean endemic <Emphasis Type="Italic">Agrodiaetus pjushtchi</Emphasis> (Lepidoptera,Lycaenidae) based on the data on karyology,ecology, and molecular phylogenetics

The geographic ranges, karyotypes, ecological preferences, and mitochondrial DNA polymorphism were analyzed to reveal the origin and taxonomic position of Agrodiaetus pljushtchi and related species of A. damone species group. According to the data obtained, the common ancestor of these species originated in Asia Minor in Late Pliocene, 1.2–1.8 million years ago. In Early Pleistocene (0.8–1.2 million years ago), a representative of this group migrated into the Crimea and gave rise to A. pljushtchi. Another branch originated from the common ancestor, which migrated into Central Asia and Siberia and gave rise to a variety of partly sympatric taxa. Recently, representatives of the Central Asian — Siberian lineage occupied Eastern Europe and approached the area of A. pljushtchi but did not overlap with it. The karyotype n = 67 is an apomorphy of the A. damone species complex. However, this karyotype is not species-specific and cannot be used to differentiate taxa within the complex. The similarity of karyotypes is thus not sufficient to consider A. pljushtchi and A. damone as conspecific taxa. The natural history data support the isolated position of A. pljushtchi, and phylogenetic analysis shows that A. pljushtchi and A. damone are not closely related.     

Spatial distribution of algae in the <Emphasis Type="Italic">Ahnfeltia tobuchiensis</Emphasis> bed in Amursky Bay (Sea of Japan)

Horizontal and vertical distribution of algae in Ahnfeltia tobuchiensis beds was studied in the area of Mt. Stolovaya in Amursky Bay, Sea of Japan. Thirty-four species of macroalgae (2 species of Chlorophyta, 26 Rhodophyta, and 6 Ochrophyta) were found in the area of study. Two fields of the unattached alga Ahnfeltia were located opposite Mt. Stolovaya; they differed in area, macrophyte stock, number and biomass of attendant species, hydrochemical and light conditions. A monodominant Ahnfeltia tobuchiensis community formed in the southern field and a bidominant community of Ahnfeltia tobuchiensis + Ahnfeltiopsis flabelliformis developed in the northern field. It is suggested that the horizontal distribution of common macrophyte species in the Ahnfeltia beds at Mt. Stolovaya is conditioned by the amount of photosynthetically active radiation (PAR) reaching the surface of the algal bed. Differences in tolerance of Ahnfeltia and attendant species to shadowing and in light conditions across the alga stratum define the vertical distribution of algae within the bed. Chondrus armatus and Ptilota filicina were found mainly in the upper layer of the algal bed. A. tobuchiensis, A. flabelliformis, Chaetomorpha linum, and Coccotylus orientalis extended across the entire thickness of the bed.     

Population demographics and trade-offs to reproduction of an invasive and noninvasive species of <Emphasis Type="Italic">Rubus</Emphasis>

Do trade-offs between growth and reproduction differ between an invasive and noninvasive plant species and how do such trade-offs relate to population demographics? To help address these questions, we compared demographics for an invasive plant species, Rubus discolor, with a noninvasive congener, R. ursinus, in several populations of varying density. Removal of floral buds from reproductive canes increased the size of juvenile canes that arose from clonal sprouting in R. ursinus, suggesting a trade-off between current reproduction and growth. Removal of floral buds had no effect on growth of R. discolor. R. ursinus displayed trade-offs between reproduction (sexual and vegetative) and future growth based on negative correlations between leaf area production and both clonal sprouting and seedling production during the previous year. R. discolor did not exhibit these trade-offs. Both species had high population growth rates in low-density populations, but exhibited little or no growth in high-density populations. A life table response experiment was used to determine the underlying cause for the effect of density on population growth. For R. ursinus, lack of population growth in high-density populations was due primarily to increased mortality of clonally sprouting canes, while for R. discolor, it was due to decreased clonal cane production. Elasticity analysis revealed that clonal growth was more important than sexual reproduction for population growth of both species. However, elasticity values for sexual reproduction in R. discolor were greater in high- than low-density populations. This suggests an increased reliance on sexual reproduction in populations that had reached stable sizes, which could increase the capacity of R. discolor to disperse to new sites. Elasticity analyses were also used to simulate the efficacy of various control strategies for R. discolor. Control of this species could be attained by reducing clonal production within existing populations while reducing seed production to limit establishment of new populations.     

New data on the taxonomy,distribution, and ecology of the weevil genus <Emphasis Type="Italic">Otiorhynchus</Emphasis> germar (Coleoptera,Curculionidae)

The subgenus Pocusogetus Rtt. of the genus Otiorhynchus Germ. is revised. The subgenus includes O. rosti Strl., O. shapovalovi Davidian et Yunakov, O. obsulcatus Strl., O. fischtensis Rtt., and O. gusakovi sp. n. closely related to O. fischtensis (both from Mt. Fisht, the Western Caucasus). O. fischtensis is transferred from the subgenus Vicoranius Rtt., its lectotype is designated. A key to species of Pocusogetus is given. The systematic position of the subgenera Pocusogetus and Vicoranius in the genus Otiorhynchus is discussed. New data on the geographical distribution and ecology of the little-known species of the subgenera Obvoderus Rtt., Pseudoprovadilus Magnano, and Clypeorhynchus Yunakov et Arzanov are given. Some features of ecological differentiation between Otiorhynchus species in the alpine and subalpine zones of the Caucasus are discussed.     

Contributions to the knowledge of the fauna of Palaearctic Latridiidae (Coleoptera)

A new species, Dienerella kerzhneri, was described from Kazakhstan. Four species are recorded from new localities: Enicmus atriceps Hansen (recorded from Belarus), Melanophthalma sericea (Mann.) and Migneauxia crassiuscula (Aubé) (the Ukraine), and Corticarina obfuscata Strand (the Caucasus).     

Genus <Emphasis Type="Italic">Eckhardites</Emphasis> Mitta (Cardioceratidae,Ammonoidea) from the Lower Callovian of the subboreal Jurassic

The genus Eckhardites Mitta 1999, with the type species Macrocephalites pavlowi Smorodina, 1928 is discussed and its diagnosis and assignment to the family Cardioceratidae are substantiated. Eckhardites is compared to the genus Macrocephalites Zittel (family Sphaeroceratidae), to which some workers presently assign the type species of Eckhardites. Three species of Eckhardites are recorded from the basal Callovian elatmae Zone of the Russian Platform, one of which (E. menzeli (Mönnig)) was originally described from the synchronous beds in Germany. A new species E. dietli sp. nov. is described.     

Revision of Late Pleistocene and Holocene Galliformes Fauna from the Crimean Mountains

The Late Pleistocene and Holocene Galliformes faunas from the Crimean Mountains included seven species of birds belonging to the families Phasianidae and Tetraonidae: Phasianus colchicus, Alectoris chukar, Perdix perdix, Coturnix coturnix, Lyrurus tetrix, Lagopus mutus, and Lagopus lagopus. The habitation of Gallus representatives in the Crimea in the Late Pleistocene has not been confirmed. Representatives of the family Phasianidae were present in the Crimean fauna at least for most of the Late Pleistocene. All of them survived until the Late Holocene. Pheasants became extinct around the eighteenth century, and the rock partridge seems to have disappeared only in the first half of the twentieth century. The species were restored in the Crimea in the second half of the twentieth century. Gray partridges were common resident birds of the Crimean Mountains throughout the Late Pleistocene and Holocene. Quail was not a numerous breeding species of the Crimean Mountains at the same time, but mass migration of this species through the Crimea appeared only at the end of the Late Pleistocene and evolved over the Holocene warming. Species of Tetraonidae appeared in the fauna of the Crimea long before the beginning of the cold-phase maximum of the last glaciations but no later than 28000 years ago and became extinct in the Early Holocene warming but no later than 9000 years ago.     

Climate-induced shifts in the niche similarity of two related spadefoot toads (genus <Emphasis Type="Italic">Pelobates</Emphasis>)

Of the four species encompassing the genus Pelobates, only two overlap along a narrow contact zone, i.e., Pelobates fuscus and Pelobates syriacus. Our study investigated the shifts in niche similarity of these two closely related species from the Last Interglacial towards the end of the twenty-first century. We computed climatic suitability models using Maxent and projected them onto future and past climates. We used fossil occurrences to test the predictive accuracy of past projections. Niche similarity was assessed between the studied species using Schoener’s D index and a background similarity test. Finally, we evaluated niche differentiation by contrasting the species occurrences using a logistic regression analysis. The ecological niches are slightly extended outside the present geographical ranges in the Caucasus and the Balkans, south for P. fuscus and north and west for P. syriacus, suggesting that their present distribution is not at equilibrium with the climate. The Last Interglacial distribution of P. fuscus included British Isles and broad areas in western, central, and northern Europe, while P. syriacus extended northwards in the Balkans. The validation with fossil records revealed good predictive performance (omission error?=?4.1 % for P. fuscus and 16.6 % for P. syriacus). During the Last Glacial Maximum, climatic suitability persisted in refugia in southern Europe, Pannonian Basin, and Caucasus for P. fuscus, and Israel, southern Balkans, and Caucasus for P. syriacus. Present potential distributions revealed a low similarity of species’ ecological niches, comparable with Last Interglacial, but projections towards 2080 revealed a sharp increase.     

A new species of the genus <Emphasis Type="Italic">Allopsontus</Emphasis> Silv. (Microcoryphia,Machilidae) from northwestern China

A new bristletail species, Allopsontus (Allopsontinus) kabaki sp. n., is described from northwestern China. This species is most similar to A. caucasicus Kaplin, 1990 known from the Caucasus (Armenia).