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Overall, 34 local floras of vascular plants were analyzed at testing sites in the Middle Volga region with an area of 400 km2. Noticeable differences were revealed in the nature of correlations between the number of species of adventitious and native flora fractions and environmental factors: climate and relief. In the region, the number of native species is negatively related to air temperature, evaporation rates, and water deficit, while adventive species show a positive relationship with these characteristics. Adventive species are more often found in gently sloping lowlands in polygons characterized by increased elevation differences and drainage area. In general, adventitious species are more associated with semi-arid conditions in sites with relatively high ranges of environmental factors and standard deviation. Multiple regression showed that adventive species are more closely related to environmental factors than native species. In the region, adventive species are distributed predominantly in places (ecotopes) with increased environmental heterogeneity. An analysis of the relationships with environmental factors of the studied fractions may indicate that their distribution on the test sites is consistent, as a result of which they do not show opposition, which is also confirmed by the weak positive relationship between the richness of their species. [ABSTRACT FROM AUTHOR]

The univoltine leaf beetle Psylliodes attenuata (Koch, 1803) is a pest of Cannabis and Humulus (Cannabaceae) and native to the Palaearctic Region, known from eastern Asia to western Europe.First North American records are presented for P. attenuata from Canada: Ontario and Québec. Adult beetle feeding damage to hops Humulus lupulus L. (Cannabacaea) plants is recorded from Québec. Diagnostic information is presented to distinguish P. attenuata from other North American Chrysomelidae and a preliminary assessment of its potential to spread in North America is presented. While our climate analysis is limited by a lack of data, it appears P. attenuata is physiologically capable of persisting throughout the range of Humulus in North America.The United States of America and Canada are now known to be home to 71 or more species of adventive Chrysomelidae.

This paper presents the chromosome numbers (2n) for 13 alien species from the families Amaranthaceae, Asteraceae, Brassicaceae, Caryophyllaceae, Malvaceae, Poaceae, Polygonaceae, Rosaceae collected in the Novosibirsk Region. For Echinops sphaerocephalus L. (2n = 30), Silphium perfoliatum L. (2n = 14) and Brassica napus L. (2n = 38), chromosome numbers were determined for the first time on the material from Russia; for Arenaria serpyllifolia L. (2n = 40) – from Siberia; for Avena sativa L. (2n = 42), Secale cereale L. (2n = 14) – from West Siberia. Chromosome numbers on the material from the Novosibirsk Region were revealed for the first time for Axyris amaranthoides L. (2n = 18), Psammophiliella muralis (L.) Ikonn. (2n = 34), Fagopyrum tataricum (L.) Gaertn. (2n = 16), Triticum aestivum L. (2n = 42), Malva verticillata L. (2n ≈ 84). For all the species studied, brief notes on their general distribution and dispersal in the Novosibirsk Region are provided, along with literature data on chromosome numbers from other regions of Russia.

The North American cicada of grapevine Erasmoneura vulnerata (Fitch, 1851) is reported as a new adventive species to the fauna of the Republic of Moldova. The cicada is widely distributed in the USA and Canada where it has been reported as a pest of wild and cultivated grapes, and other host plants. The presence of this species in Europe was detected in 2004 for the first time on Vitis vinifera in north-eastern Italy. The species was recorded soon in several European countries, such as Slovenia (2010), Romania (2018), Switzerland and Serbia (2019). In 2022, E. vulnerata was collected for the first time in southwest of the Republic of Moldova, the specimens of cicada were caught on ultraviolet light traps. [ABSTRACT FROM AUTHOR]

This paper presents the chromosome numbers (2n) for 12 alien species collected in the Novosibirsk Region from the families Apocynaceae, Asteraceae, Campanulaceae, Caryophyllaceae, Fabaceae, Lamiaceae, Plantaginaceae, Poaceae. For Asclepias syriaca L. (2n = 22), Veronica filiformis Sm. (2n = 14), Setaria italica (L.) P. Beauv. (2n = 18), and Sorghum drummondii (Nees ex Steud.) Millsp. et Chase (2n = 20), chromosome numbers were determined for the first time on the material from Russia; for Tanacetum parthenium (L.) Sch. Bip. (2n = 18), Campanula persicifoliaL. (2n = 16), and Genista tinctoria L. (2n = 48) – from Asian Russia; for Calendula officinalis L. (2n = 32) and Rudbeckia hirta L. (2n = 38) – from Siberia. Chromosome numbers on the material from the Novosibirsk Region were revealed for the first time for Lapsana communis L. (2n = 14) and Silene noctiflora L. (2n = 24). For all the species studied, brief notes on their general distribution and dispersal in the Novosibirsk Region are provided, along with literature data on chromosome numbers from other regions of Russia.

The univoltine leaf beetle Chrysolina fastuosa (Scopoli, 1763) is native to in the Palearctic Region from eastern Siberia to western Europe.First North American records are presented for C. fastuosa (Scopoli, 1763) (Coleoptera, Chrysomelidae, Chrysomelinae), as confirmed by vouchered specimens from Canada: Nova Scotia. Additional citizen science records from USA: Vermont are also discussed. Diagnostic information is presented to distinguish C. fastuosa from other North American Chrysomelidae and a species distribution model to assess its potential spread in North America is presented. This insect is expected to cause some feeding damage to above-ground parts of ornamental and invasive Lamiaceae, especially species of Galeopsis L. The species distribution model and the range of its host plant Galeopsis tetrahit, suggest the north-eastern US and south-eastern Canada, from the Atlantic coast to the west end of Lake Superior provide the most suitable conditions for this species. The United States of America and Canada are now known to be home to 70 or more species of adventive Chrysomelidae.

In the past decade, several species of platygastroid wasps were found to be adventive in North America and Europe while under evaluation in quarantine as biological control agents of invasive pests. The scope and relative risk of this phenomenon is not fully known, but it is clearly a trend with implications for classical biological control. As a means of assessing the issue and to provide a global baseline, we implemented a data-mining approach with DNA sequences in the Barcode of Life Database, yielding 201 platygastroid BINs with intercontinental and island distributions. At least fifty-five BINs displayed exact COI barcode matches across continents, with many more BINs scored as inconclusive due to sequence length variation. These intercontinental and island BINs include biocontrol agents known to be adventive, as well as many species identified only to genus with uncertain geographic origins. We provide 2,500 identifications for platygastroid BOLD BINs, 88% to genus, to encourage additional research on this distributional phenomenon. The intercontinental BOLD BINs were compared to literature records and GBIF occurrences of cosmopolitan species to identify gaps and discordance across data sources. Smaller COI barcode datasets from localities in Florida and Germany, including topotypical specimens, revealed more intercontinental matches. We analyzed COI sequences in BOLD for the entirety of Insecta and Araneae to assessthis phenomenon more broadly and because these taxa contain many hosts for platygastroid wasps. This method revealed that the intercontinental distribution phenomenon is widespread with implications for assessing biological diversity, taxonomic methodology and regulatory frameworks. [ABSTRACT FROM AUTHOR]

A systematic position of Sacodes martae (Gusakov, 2022), comb. n. previously described from Moscow in the genus Elodes Latreille, 1797 is considered. Female genitalia are illustrated for the first time based on paratypes specimens (two females). The genus Sacodes LeConte, 1854 is distributed mainly in Asia (in Russia from Western Siberia to Far East). Isolated records of the species from the City of Moscow may confirm his accidental importation, and that Sacodes martae, probably, is adventive species for European part of Russia

Background The univoltine leaf beetle Chrysolina fastuosa (Scopoli, 1763) is native to in the Palearctic Region from eastern Siberia to western Europe. New information First North American records are presented for C. fastuosa (Scopoli, 1763) (Coleoptera, Chrysomelidae, Chrysomelinae), as confirmed by vouchered specimens from Canada: Nova Scotia. Additional citizen science records from USA: Vermont are also discussed. Diagnostic information is presented to distinguish C. fastuosa from other North American Chrysomelidae and a species distribution model to assess its potential spread in North America is presented. This insect is expected to cause some feeding damage to aboveground parts of ornamental and invasive Lamiaceae, especially species of Galeopsis L. The species distribution model and the range of its host plant Galeopsis tetrahit, suggest the north-eastern US and south-eastern Canada, from the Atlantic coast to the west end of Lake Superior provide the most suitable conditions for this species. The United States of America and Canada are now known to be home to 70 or more species of adventive Chrysomelidae. [ABSTRACT FROM AUTHOR]

The spontaneous appearance of the annual plant, Veronica cardiocarpa Walp. (Plantaginaceae), from Central and Minor Asia was recorded in the O.V. Fomin Botanical Garden of the Taras Shevchenko National University of Kyiv in 1983 as a result of unintentional introduction. It was the first documented occurrence outside of its natural range. V. cardiocarpa has been widespread within the Botanical Garden since 2007, and the first location outside the Botanical Garden was discovered in 2010. Later, the presence of V. cardiocarpa was noted in Chernihiv, as well as new locations in Kyiv. This species has become a new invasive plant of the flora of Ukraine, because it occupies new areas and shows high seed productivity. Additionally, V. cardiocarpa has high seed germination under certain conditions that were established during our experiment, consisting of four variants and a control. The conditions of the second variant—cold stratification with low positive temperatures for two months and germination of seeds at + 18–20 °C—were the most favourable—49 ± 4.36% germinated seeds began to appear on the third day after completion of stratification. Moreover, some indirect facts show that V. cardiocarpais is already deeply integrated in local urban ecosystems. Therefore, the main stages of the adaptation and spreading of V. cardiocarpa have been studied and described in Ukraine in this research. Information about a new location of this species in the Russian Federation significantly changed the understanding of V. cardiocarpa distribution in Eastern Europe. Finally, in this article, we discuss the important matter of dealing with the V. cardiocarpa invasion, and some approaches to prevent similar cases of the new alien species penetration through collections of botanical gardens and arboreta. [ABSTRACT FROM AUTHOR]

The invasive alien species Cynaeus angustus (LeConte, 1851) was detected for the first time in Bulgaria. In 2020-2022, eight exemplars of this North American pest were collected at three sites along the Danube River. Its distribution, microhabitat affinity, food preferences as well as some methods for control are outlined. Photographs of the adult habitus, male genitalia and female ovipositor are also provided.

IntroductionLand use changes have seriously fragmented grasslands leading to extensive biodiversity loss worldwide. Habitat fragmentation affects grasslands at both local and landscape scales, adversely affecting the probability of species colonisation and extinction. In our study, we addressed the effects of fragment size and landscape-scale habitat connectivity on the vegetation composition in two grassland types, i.e., loess steppe fragments (situated on kurgans) and sand steppe fragments of the Pannonian forest steppe region.MethodsWe collected frequency data on vascular plant species in 12 1 m × 1 m quadrats in altogether 60 fragments along a connectivity gradient in sand steppes and loess steppe fragments. We analysed whether habitat specialists, generalists and exotic species were affected by the level of fragmentation based on species richness and traits related to local persistence (life span, clonality and soil seed bank type) and dispersal (dispersal strategy and seed mass) in the two grassland types using linear mixed-effects models.ResultsBased on our results, both fragment size and landscape-scale connectivity were important in shaping the trait composition of the vegetation. We observed more fragmentation effects in generalist than in specialist species. We found that isolation resulted in fewer specialist species with autochorous dispersal strategy in loess steppe fragments, but, at the same time, also fewer exotics. Isolated loess steppe fragments harboured fewer generalist species with persistent seed bank. Large loess steppe fragments supported more wind-dispersed species than smaller ones. In isolated sand steppe fragments, generalists were more frequent with endozoochorous dispersal strategy and without clonal propagation. Life span, clonal propagation and seed mass did not depend on the level of fragmentation in the two grassland types.DiscussionOur results imply that both sand and loess steppe fragments can rely to some extent on the persistence of clonal perennial specialist and generalist species in small and isolated patches to mitigate fragmentation effects. In conclusion, these processes should be supported by the preservation of large fragments, increase of habitat connectivity combined with targeted management of exotic species.

This paper presents the chromosome numbers (2n) for 13 alien species (from the families Apocynaceae, Asteraceae, Brassicaceae, Fabaceae, Lamiaceae, Polygonaceae, Solanaceae) in the Novosibirsk Region. For Vincetoxicum hirundinaria Medik. (2n = 22) and Sisymbrium altissimum L. (2n = 14), chromosome numbers were determined for the first time on the material from Russia; for Betonica officinalis L. (2n = 16) – from Asian Russia; for Stachys annua (L.) L. (2n = 34) – from West Siberia. Chromosome numbers on the material from the Novosibirsk Region were revealed for the first time for Cosmos bipinnatus Cav. (2n = 24), Inula helenium L. (2n = 20), Sonchus oleraceus L. (2n = 18), Medicago sativa subsp. varia(Martyn) Arcang. (2n = 32), Rumex obtusifolius L. (2n = 20) and Solanum nigrum L. (2n = 48). For all the species studied, brief notes on their general distribution and dispersal in the Novosibirsk Region are provided, along with literature data on chromosome numbers from other regions of Russia.

Thirty species of Curculionoidea (28 Curculionidae and one each of Brentidae and Nemonychidae) are reported as new records from the Canadian province of Newfoundland and Labrador, most of them from the island of Newfoundland. As well, 13 species of Curculionidae and one of Brentidae previously recorded from Newfoundland are newly reported from Labrador, and one Curculionidae previously recorded from Labrador is newly reported from Newfoundland. The Palearctic species, Orthochaetes setiger ([Beck]), is herein reported as a new Canadian and North American record, with specimens documented from Newfoundland and British Columbia. Additions to the primary key for North American weevils are provided to help identify this genus among the North American fauna. Of the species of Curculionoidea previously recorded from the province in published literature, there is uncertain evidence for the occurrence of 14 species in the province as a whole or in the Labrador portion. Seven species are hereby removed from the faunal list for the province. One of those, Trachodes hispidus (Linnaeus), is also removed from the Canadian faunal list. The 134 species of Curculionoidea recorded from NL are listed and a brief synopsis of the fauna provided. [ABSTRACT FROM AUTHOR]

Information on the record of Phyllactinia moricola, a new in Ukraine alien powdery mildew fungus, is reported. The teleomorph of the fungus was collected in October–December 2020 on Morus alba in Odesa. The description and illustrations of the studied material are provided. The disease caused by this species can significantly reduce the ornamental properties of mulberry, a popular plant that is often used in greenery in the settlements of Ukraine. It is noted that the fungus can spread to Southern Europe, where it may cause significant damage to horticulture and silk production.

Lepas (Anatifa) pectinata Spengler, 1793 is a common member of marine fouling in subtropical and tropical waters of the world's oceans. This article is the first record of this species from Peter the Great Bay, Sea of Japan. A total of 117 specimens collected from the southwestern coast and the islands of the bay in 2015–2020 have been examined. The finding of small individuals and the presence of nauplii in mantle cavities indicate that L. pectinata reproduces successfully in the Sea of Japan. Due to the increasing amount of man-made marine litter, as well as climatic and hydrological conditions, L. pectinata has become a seasonal adventive species in the fauna of Peter the Great Bay. [ABSTRACT FROM AUTHOR]

The Reunion planthopper Euroxenus vayssieresi (Bonfils, Attie et Reynaud, 2001) is recorded from continental Africa for the first time. Sexual dimorphism in coloration and fifth instar larva of Eu.vayssieresi are described and the distribution pattern (chorotype) of this species is discussed. [ABSTRACT FROM AUTHOR]

During floristic research in 2017–2020 in the Emirate of Fujairah in the United Arab Emirates (UAE), we made new findings that complement the species composition of the flora of vascular plants in the territory of the Emirate and the UAE as a whole. The article provides data on 7 new ergasiophytes and ergasiophygophytes, alien to the Emirate of Fujairah: Asystasia gangetica T. Andersson (Acanthaceae) found growing wild in Dibba, A. gangetica subsp. micrantha (Nees) Y. F. Deng et N. H. Xia (Acanthaceae), as a weed in the nurseries of Dibba, Rul Dadna and Al Bidiya, Centella asiatica (L.) Urb. (Apiaceae), as a weed in Dibba town, Basella alba L. (Basellaceae) cultivated and becomes wild in Dibba town, Citrus ×limon (L.) Osbeck (Rutaceae) cultivated and often found growing wild in Dibba, the village of Sharm and other settlements of the Emirate, Murraya koenigii (L.) Spreng. cultivated and becomes wild in Dibba, Rul Dadna, Al Bidiya and other places, and M. paniculata (L.) Jack (Rutaceae) cultivated and becomes wild in plant nurseries in Dibba and Al Bidiya. Asystasia gangetica, A. micrantha, and Centella asiatica are new alien species for Fujairah Emirate and the UAE, and Basella nigra, Murraya koenigii and M. paniculata are new also for Arabia as a whole. A brief history of the study of the flora of the UAE and a preliminary summary of its species diversity are also given.

The invasive alien species Cynaeus angustus (LeConte, 1851) was detected for the first time in Bulgaria. In 2020-2022, eight exemplars of this North American pest were collected at three sites along the Danube River. Its distribution, microhabitat affinity, food preferences as well as some methods for control are outlined. Photographs of the adult habitus, male genitalia and female ovipositor are also provided. [ABSTRACT FROM AUTHOR]

Plant–pollinator interactions represent a crucial ecosystem function threatened by anthropogenic landscape changes. Disturbances that reduce plant diversity are associated with floral resource and pollinator declines. Establishing wildflower plantings is a major conservation strategy targeting pollinators, the success of which depends on long‐term persistence of seeded floral communities. However, most pollinator‐oriented seeding projects are monitored for a few years, making it difficult to evaluate the longevity of such interventions. Selecting plant species to provide pollinators diverse arrays of floral resources throughout their activity season is often limited by budgetary constraints and other conservation priorities. To evaluate the long‐term persistence of prairie vegetation seeded to support pollinators, we sowed wildflower seed mixes into plots on a degraded reclaimed strip‐mine landscape in central Ohio, USA. We examined how pollinator habitat quality, measured as floral abundance and diversity, changed over 10 years (2009–2019) in the absence of management, over the course of the blooming season within each year, and across three seed mixes containing different numbers and combinations of flowering plant species. Seeded species floral abundance declined by more than 75% over the study, with the largest decline occurring between the fifth and seventh summers. Native and non‐native adventive flowering plants quickly colonized the plots and represented >50% of floral community abundances on average. Floral richness remained relatively constant throughout the study, with a small peak one year after plot establishment. Plots seeded with High‐Diversity Mixes averaged two or three more species per plot compared with a Low‐Diversity Mix, despite having been seeded with twice as many plant species. Within years, the abundance and diversity of seeded species were lowest early in the blooming season and increased monotonically from June to August. Adventive species exhibited the opposite trend, such that complementary abundance patterns of seeded and adventive species blooms resulted in a relatively constant floral abundance across the growing season. Seeded plant communities followed classic successional patterns in which annual species quickly established and flowered but were replaced by perennial species after the first few summers. Long‐term data on establishment and persistence of flower species can guide species selection for future‐oriented pollinator habitat restorations. [ABSTRACT FROM AUTHOR]

Psix striaticeps (Dodd) is an egg-parasitoid wasp previously known only from the Old World. We report this species from twelve counties in Florida, which are the first records in the Western Hemisphere. It was collected in yellow cylinder traps and reared from the eggs of three stink bug species: Nezara viridula L., Chinavia marginata (Palisot de Beauvois), and Piezodorus guildinii (Westwood). A COI barcode analysis found a 100% match between the Floridian population and a specimen from South Africa. The prospects of using Ps. striaticeps as a biological control agent against exotic stink bugs are discussed. [ABSTRACT FROM AUTHOR]

Three common Western Palaearctic species of the weevil subfamily Entiminae are recorded from Yakutia for the first time: Otiorhynchus velutinus Germ., O. raucus (F.) and Omias puberulus Boh. The history of their appearance in the extant fauna of Yakutia is discussed. [ABSTRACT FROM AUTHOR]

Camera traps (CT) were used in 2018 to assess the current state of the Przewalski’s horse (PH) population. Przewalski’s horses were introduced into the Ukrainian Chornobyl exclusion zone (CEZ) in 1998. Up to 720 km2 (of the 2600 km2 total CEZ area) were investigated between February and November 2018, however the assessment reported here was made between May–July when PH are more settled with regards to the territory used. Totally 137 PH were recorded in the Ukrainian part of the CEZ: 47 stallions, 66 mares (adult & fillies) and 24 foals (10 males, 4 females and 10 of unidentified gender). At least four more PH (stallion, 2 mares, 1 foal) are noted at a remote site in the Belarus CEZ (V. Dombrovsky, or. rep.). All foals were born April-July 2018. There were 13 harem herds with foals (3–16 individuals in total in each), four small non-breeding groups (2-3 individuals), ca. 6 stallion groups (2–6 individuals), and at least one solitary stallion. Harem and non-breeding herds generally kept to ca. 18 sites, stallion groups normally roamed. Two-three groups lived on territories which including both Ukrainian and Belorussian parts of the CEZ. During 2007–2010 PH crossed the river Prypiat and finally founded a local reproducing sub-population. Almost all PH are from the 2nd and higher generations, only two mares had a brand mark which identified the original introduced population. One herd (Ilintsy) includes a domesticate breed mare (in autumn she moved to a neighbouring group, in Stechanka, where in 2019 gave birth to a hybrid foal sired by the Ilintsy stallion). At least, two males (solitary stallion and colt) had signs of hybridization (i.e. PH and domesticated horse). Underestimation of the total PH population in our study is likely as not all appropriate sites were investigated. The total herd, as identified here, of PH grew seven-fold between 1998 and 2018. However, the rate of population increase between 2009–2018 was in 1.5 times less than that 1998–2008 previously reported. This reduced population growth rate was likely due to the changing age structure of the herd, the initial herd contained only older (more productive) mature mares, over time numbers of younger (less productive) mares increased. The present demographic indices and reproductive potential do not indicate any negative tendencies in the population development, and evidence the further fitness to the local conditions. PH are native to open steppe landscapes and our study confirms their preference to meadows in the CEZ. However, we observed that PH do not avoid forests. Reforestation of meadows and predominance of woodlands in the CEZ are obstacles for comprehensive monitoring of PH, and may contribute to an underestimation of the population size as direct visual observations do not work well in the woodlands. CT studies offer a solution to this problem.

Background: The univoltine leaf beetle Psylliodesattenuata (Koch, 1803) is a pest of Cannabis and Humulus (Cannabaceae) and native to the Palaearctic Region, known from eastern Asia to western Europe., New Information: First North American records are presented for P.attenuata from Canada: Ontario and Québec. Adult beetle feeding damage to hops Humuluslupulus L. (Cannabacaea) plants is recorded from Québec. Diagnostic information is presented to distinguish P.attenuata from other North American Chrysomelidae and a preliminary assessment of its potential to spread in North America is presented. While our climate analysis is limited by a lack of data, it appears P.attenuata is physiologically capable of persisting throughout the range of Humulus in North America.The United States of America and Canada are now known to be home to 71 or more species of adventive Chrysomelidae.

Following the introduction of cattle, exotic dung beetles (Coleoptera: Aphodiidae, Geotrupidae, Scarabaeidae) were imported into the Antipodes (Australia and New Zealand) and North America (primarily the United States) to accelerate the degradation of cattle dung on pastures. The history of dung beetle introductions between the two regions is similar but has not previously been assessed: this is important as new introductions are continuing in the regions. Here, we review these introduction programs, report on their current status, and discuss methodological advances. In doing so, we examine the accidental introduction of exotic (i.e. adventive) species and the contribution of both deliberately introduced and adventive species to endemic dung beetle faunas. Further, we provide a list of pest and parasite species whose populations can be reduced by dung beetle activity. We also identify a combined total of 37 introduced and 47 adventive dung beetle species that have become established in the Antipodes and North America, with exotic species dominating dung beetle assemblages from pasture habitats. Climatic and edaphic matches, the size of founding populations, abiotic and biotic stressors, and the time of year when releases are made are all critical determinants that affect the success of dung beetle introduction programs. Finally, we discuss opportunities, plus the risks and challenges associated with dung beetle introductions. We hope that this review will aid in the success of future introduction programs, either to enhance ecosystem services in areas that they are needed, or potentially to reestablish native species in regions where they have been extirpated. [ABSTRACT FROM AUTHOR]

The article describes a new case of long-distance dispersal in vascular plants. The reported plant belongs to a group of closely related taxa from East Asia, here referred to as 'kumokiri-alliance'. Our phylogenetic data show that this alliance is poorly resolved into separate species and according to available data the discussed taxon cannot be referred to any particular species. Presumably the same plant was earlier discovered in Italy (in 2012) and in Austria (in 2016) and reported under the name L. kumokiri, but most of the authors treated it as a native element in those countries. In this article, we report further records of this plant in Krasnoyarsk krai, in the Republic of Dagestan and presumably also in Kamchatka krai of Russia. The ITS sequence data of plants from Krasnoyarsk krai and from Republic of Dagestan show that it is very closely related (if not identical) to the plants from Italy, suggesting that the plant has already developed a large secondary range, probably the largest among orchids in Eurasia, but it might have been overlooked due to its inconspicuous habitus. [ABSTRACT FROM AUTHOR]

Background. Plant genetic resources (PGR) conservation is an indispensable condition for ensuring the country’s economic and environmental security. The most important component of the PGR status assessment is the study of crop wild relatives in a particular region. Within the framework of the work on inventorying crop wild relatives (CWR) in the regions of Russia, an inventory of CWR was for the first time made for Magadan Province, Far East region of Russia, to identify plant taxa that are prioritized for conservation and monitoring of their status in natural phytocenoses. Materials and methods. The material for the present research was taken from the data published on the vegetation of the studied region. Taxonomic analysis of CWR was performed using conventional floristic methods. In order to select priority species for conservation, the guidelines for PGR conservation adapted for Russia were used.Results and conclusions. A list of 232 CWR species belonging to 62 genera of 21 families has been compiled; it encompasses nearly 20% of the entire regional flora. The indigenous part of CWR amounts to ca. 60%, while the adventive part includes 40% of the total CWR number. Analysis of distribution of CWR species over the studied area showed that the greatest diversity of CWR species (81%) is concentrated in the Okhotsky floristic district. As a result of the analysis, 76 species occurring in Magadan Province were identified for prioritized in situ conservation.

Composition of insect species pollinating Sorbus aucuparia and Aronia mitschurinii in Moscow Region, Russia was studied. It was collected 39 species – representatives of 4 orders and 21 families. The hypothesis that these two plants with same inflorescences and blossoming simultaneously are visited by the same insect species was not proved: 18 species were captured only on S. aucuparia and 16 species only on A. mitschurinii. Insects demonstrated selectivity towards aboriginal (Sorbus) and adventive (Aronia) plants. Only five species were registered on both plants: Bombus ruderarius Müller, 1776, Andrena haemorrhoa (Fabricius, 1781), Bellardia viarum obineauDesvoidy, 1830, Anthrenus scrophulariae Linnaeus, 1758 and Anaspis frontalis (Linnaeus, 1758). Sorbus aucuparia was more attractive for Diptera from the families Calliphoridae and Milichiidae, and Aronia mitschurinii – for Anthomyiidae, Calliphoridae and Sarcophagidae. Selectivity was discovered at species level also: Andrena ruficrus Nylander, 1848 and Myopa polystigma Rondani, 1857 visited Aronia mitschurinii only and Andrena subopaca Nylander, 1848 and Myopa testacea (Linnaeus, 1767) – Sorbus aucuparia. The majority of collected insect species are polyphagous. Additional data on other plants visited by the same insects during the period of bloom of Sorbus and Aronia are given, including those from the genera Malus, Spiraea, Pyrus, Prunus, Rosa, Rubus, Cerasus Crataegus, Barbarea and Taraxacum.

Long-term observations of the rates and pattern of changes in flora and vegetation contribute to understanding of one of the most important contemporary global problems, the eutrophication of water bodies. In this study, using classical floristic methods, we attempt to determine (for a period of almost 80 years) the nature and possible causes of changes in the floristic composition of the lakes of karst origin, Velikoe and Parovoe (Pustinskaya lake-river system, the right bank of Nizhny Novgorod oblast). The paper shows that over a long period of observations a significant transformation of the vegetation cover has occurred in the lakes. The process was accompanied by the disappearance of a number of native species and appearance of others, including adventitious ones (for example, Elodea canadensis Michx., Zizania latifolia (Griseb.) Stapf, Bidens frondosa L. and Epilobium adenocaulon Hausskn.). The weak saturation of the flora with adventive species indicates that the reservoirs are subject to moderate anthropogenic transformation. This is also indicated by the presence of characteristic indicator species, for example, Najas minor All., Glyceria fluitans (L.) R. Br., Hydrocharis morsus-ranae L. and Stratiotes aloides L. in the plant communities. In addition, the studied water bodies are subject to a further increase in the degree of eutrophication. This can be judged by scattered records of Potamogeton trichoides Cham. et Schlecht., the disappearance of a number of species (such as Elatine alsinastrum L. and Callitriche hermaphroditica L.), as well as the presence of a significant number of macrophyte indicators of the eutrophic state of water bodies. We suggest that a gradual increase in the trophicity of the studied water bodies is due to a combination of anthropogenic impact (water withdrawal for economic needs, recreational load), natural and climatic features of the region (alternation of high and low water periods) and the natural succession processes associated with the current fundamental changes in the conditions of the runoff formation in the Volga River basin. As a result of studies conducted by authors in 2014–2015, it has been shown that in general the taxonomic and ecological structures of the flora of both lakes are quite diverse and traditional for the territory and the European part of Russia. Meanwhile, the flora of these two reservoirs insignificantly differs in taxonomic composition, which is due to their individual morphometric characteristics, the physical and chemical properties of the aquatic environment, and the nature of the anthropogenic load. At the same time, the equilibrium balance of coastal and aquatic plants in the flora of Lake Parovoe (in contrast to Lake Velikoe) indicates a degree of successional stability of its floristic complex.

Philonthus wuesthoffi Bernhauer, 1939 was recorded in Italy in 2017 and 2019 for the first time. the specimens were found in friuli, North-West of Udine, in an area cultivated with Medicago, by pitfall traps and in the Lessini Mountains north of Verona at the edge of a waterhole on a dead toad. Philonthus wuesthoffi seems to have invaded Europe from East Asia and has become a widespread species in Europe. Philonthus ohizumi Dvořák, 1958 is synonymized with P. wuesthoffi. [ABSTRACT FROM AUTHOR]

Checklists provide information about the species found in a defined region and serve as baselines for detecting species range expansions, contractions, or introductions. Bees are a diverse and important group of insect pollinators. Although some bee populations are declining, these patterns are difficult to document and generalize due to a lack of long-term studies for most localities. Documenting the diversity of wild bee communities is critical for assessing pollination services, community ecology, and geographical and temporal changes in distribution and density. Here, an updated checklist of the bees of the Commonwealth of Pennsylvania, USA, is presented. Since the first checklist was published (2010; 372 species), thousands of additional specimens from the state have been collected and databased, new species have been described in the region, and the taxonomic status of some species have changed. Specimen data from insect collections, databases, scientific literature, and unpublished records were compared to the original checklist. Seventy-nine new state species records - including 49 first-time reports - representing five of the six bee families in North America, were documented resulting in a total of at least 437 bee species reported from Pennsylvania. We highlight new county records and species persistence details. Our list includes a total of 23 exotic species and at least five species of conservation concern. Lists of species excluded from the state checklist and species anticipated to occur in Pennsylvania are also included. This checklist provides baseline data for researchers and the public. The benefits of insect collections, specimen databases, determination and voucher labels, and georeferencing to biodiversity studies and other aspects of biological research are also discussed. [ABSTRACT FROM AUTHOR]

This study demonstrates the power of DNA barcoding to detect overlooked and newly arrived taxa. Sixtythree species of Coleoptera representing 25 families are studied based on DNA barcode data and morphological analysis of the barcoded specimens. Three of the species involve synonymies or previous taxonomic confusion in North America, while the first Canadian records are published for 60 species. Forty-two species are adventive in North America, and 40 of these adventive species originate from the Palaearctic region. Three genera are recorded from the Nearctic region for the first time: Coelostoma Brullé, 1835 (Hydrophilidae), Scydmoraphes Reitter, 1891 (Staphylinidae), and Lythraria Bedel, 1897 (Chrysomelidae). Two new synonymies are established: Mycetoporus triangulatus Campbell, 1991 (Staphylinidae) is a junior synonym of Mycetoporus reichei Pandellé, 1869, syn. nov. while Bledius philadelphicus Fall, 1919 (Staphylinidae) is a junior synonym of Bledius gallicus (Gravenhorst, 1806), syn. nov. The previously suggested move of Ctenicera tigrina (Fall, 1901) to the genus Pseudanostirus Dolin, 1964 (Elateridae) is formalized, resulting in Pseudanostirus tigrinus (Fall, 1901), comb. nov. [ABSTRACT FROM AUTHOR]

In the vascular flora of Serbia, the genus Euphorbia is represented with 36 species belonging to the subgenera Esula, Chamaesyce, Euphorbia and Rhizanthium. Five species of E. subg. Chamaesyce have been recorded so far in Serbia: E. chamaesyce, E. maculata, E. humifusa, E. nutans and E. davidii. During our research on the flora of Belgrade in 2012, we found a species new for the vascular flora of Serbia - E. prostrata from the mentioned section, on the banks of the Sava River.

During the systematic fl ora survey of the city a large stand of Dipsacus strigosus was found in Pécs. Morphological characteristics, some phytocoenological features, the most likely way of introduction, and the expansion dynamics are discussed and a new key to the Dipsacus taxa of Hungary is presented in the study. [ABSTRACT FROM AUTHOR]

Stenopelmus rufinasus, a North American weevil introduced to Europe along with the invasive aquatic fern Azolla filiculoides, has been recorded from Poland for the first time. Its locality is a natural oxbow lake of the River Odra in Wrocław, the only city in Poland where A. filiculoides has been repeatedly recorded over the last dozen years. The diagnostic characters of this weevil species, its biology, current distribution in Europe and its prospects in Poland are discussed. [ABSTRACT FROM AUTHOR]

Eight ground beetle species, including Trechus quadristriatus (Schrank), Elaphropus dolosus (LeConte), Brachinus americanus (LeConte), Pterostichus tenuis (Casey), Cyclotrachelus convivus (LeConte), Agonum mutatum (Gemminger & Harold), Somotrichus unifasciatus (Dejean), and Cymindis elegans LeConte, are reported from Virginia for the first time, and one species, Clinidium apertum allegheniensis Bell & Bell, is removed from the state list. Two species are reported as new state records for Maryland (Harpalus katiae Battoni) and West Virginia (Clinidium apertum allegheniensis Bell & Bell). [ABSTRACT FROM AUTHOR]

A new parasitoid-host association between Davidsonaspis aguacatae (Evans, Watson & Miller) (Hemiptera: Diaspididae) and Encarsia lounsburyi (Berlese & Paoli) (Hymenoptera: Aphelinidae) is documented, and an overview of armored scales infesting Hass avocados intercepted in Florida is given. An observation of the occurrence of crawler scales developing inside a parasitized female scale is discussed. [ABSTRACT FROM AUTHOR]

Cavity-nesting bees, such as members of the genus Hylaeus Fabricius (Hymenoptera: Colletidae), are prone to accidental introductions by human-mediated transportation. The first records of Hylaeus (Paraprosopis) pictipes Nylander, 1852 in North America are reported. Hylaeus pictipes is a European species newly discovered from Mississauga, Ontario, Canada; Meadville, Pennsylvania, USA; and Cleveland, Ohio, USA. Notes on its identification and a discussion of exotic bees in North America are provided. [ABSTRACT FROM AUTHOR]