western palaearctic
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Diversity ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 24
Author(s):  
Ondřej Korábek ◽  
Lucie Juřičková ◽  
Adam Petrusek

Sequences of mitochondrial genes revolutionized the understanding of animal diversity and continue to be an important tool in biodiversity research. In the tribe Helicini, a prominent group of the western Palaearctic land snail fauna, mitochondrial data accumulating since the 2000s helped to newly delimit genera, inform species-level taxonomy and reconstruct past range dynamics. We combined the published data with own unpublished sequences and provide a detailed overview of what they revealed about the diversity of the group. The delimitation of Helix is revised by placing Helix godetiana back in the genus and new synonymies are suggested within the genera Codringtonia and Helix. The spatial distribution of intraspecific mitochondrial lineages of several species is shown for the first time. Comparisons between species reveal considerable variation in distribution patterns of intraspecific lineages, from broad postglacial distributions to regions with a fine-scale pattern of allopatric lineage replacement. To provide a baseline for further research and information for anyone re-using the data, we thoroughly discuss the gaps in the current dataset, focusing on both taxonomic and geographic coverage. Thanks to the wealth of data already amassed and the relative ease with which they can be obtained, mitochondrial sequences remain an important source of information on intraspecific diversity over large areas and taxa.


Author(s):  
S. Utevsky ◽  
Y Mabrouki ◽  
A. F. Taybi ◽  
M. Huseynov ◽  
A. Manafov ◽  
...  

Leeches of the genus Limnatis Moquin–Tandon, 1827 infest mucous membranes of various mammals, including humans and domestic ungulates. The type species of the genus L. nilotica (Savigny, 1822) was initially thought to occur throughout the Western Palaearctic, from North Africa to the Middle East and Central Asia. It was later found that L. paluda (Tennent, 1859) is a widespread Western Asian species. However, the South Caucasus and vast areas of Central Asia have not been explored sufficiently in terms of leeches of the genus Limnatis. We recorded L. paluda from Azerbaijan and Uzbekistan for the first time. We also carried out the first molecular characterisation of L. nilotica herein. We found a deep genetic differentiation (8 %) between the Western Asian L. paluda and North African (Moroccan) L. nilotica based on their COI sequences. This finding corroborates a previous morphology–based hypothesis on their separate species assignments. The low genetic diversity of L. paluda is explained by the recent colonisation of arid landscapes of Western Asia.


Zootaxa ◽  
2021 ◽  
Vol 2291 (1) ◽  
Author(s):  
YURI M. MARUSIK ◽  
MYKOLA M. KOVBLYUK

Minosiella Dalmas, 1921 is a small genus of Gnaphosinae spiders comprising only six species known from western Palaearctic, ranging from Algeria to Afghanistan (Platnick, 2009). Males of this genus can be easily recognized thanks to strong cymbial spines (Figs 1–3, 9–11). Four species of Minosiella are known from both sexes, and two from females only. One of the latter, Minosiella intermedia Denis, 1958 was reported from Turkmenistan and from the Aral Sea (Ovtsharenko & Fet, 1980; Krivokhatski & Fet, 1982; Mikhailov, 1997). Although this species was reported several times from the former Soviet Union and not less than 450 specimens of M. intermedia have been collected in Karakum Desert (Krivokhatski & Fet, 1982), the male of this species was not described yet.


Diversity ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 667
Author(s):  
Thomas Schneider ◽  
Andy Vierstraete ◽  
Ole Müller ◽  
Gert Jan van Pelt ◽  
Max Caspers ◽  
...  

Taxonomy of the genus Cordulegaster Leach in Brewster, 1815 in the Eastern part of the Western Palaearctic is poorly resolved. A two-step approach was applied: sequences of mitochondrial and nuclear DNA fragments were used to sort specimens; poorly known or new taxa with their phenotypic variation were described. The existence of two traditional groups (boltonii- and bidentata-group) was confirmed. Cordulegaster coronata Morton, 1916, however, belongs to a different group. Molecular-analysis supported three known and one new species (C. heros Theischinger, 1979, C. picta Selys, 1854, C. vanbrinkae Lohmann, 1993, and C. kalkmani sp. nov.) in the boltonii-group. In the bidentata-group, all specimens from West-Turkey belonged to C. insignis Schneider, 1845, all specimens further east to a complex of four closely related species, which we name charpentieri-complex (C. amasina Morton, 1916, stat. rev., C. mzymtae Bartenev, 1929 C. charpentieri (Kolenati, 1846), stat. rev. and C. cilicia sp. nov.). The following taxa: C. insignis nobilis Morton, 1916, syn. nov., C. nachitschevanica Skvortsov and Snegovaya, 2015, syn. nov. C. plagionyx Skvortsov and Snegovaya, 2015, syn. nov. and the Caucasian subspecies C. insignis lagodechica Bartenev, 1930, syn. nov., were synonymized with C. charpentieri. Finally, we provide a key for all Western Palaearctic Cordulegaster.


2021 ◽  
Vol 67 (4) ◽  
pp. 313-340
Author(s):  
Zoltán Varga ◽  
Gábor Ronkay ◽  
László Ronkay

The taxonomically important characters and subgeneric subdivision of Dichagyris are presented with several historical and nomenclatural considerations. Subdivision of D. vallesiaca is revised based on the type material of the known subspecies. The D. psammochroa group is revised, with description of a new species, D. kurbatskyi from Kazakhstan, and one new subspecies, D. psammochroa kopetdaghimena from the Kopet-Dagh massif. The D. taftana group is revised, with the description of a new species (D. guentereberti from Afghanistan) and two new subspecies (D. taftana elborsasta and D. taftana safavida, from different areas of Iran). The eastern sister species of D. humilis, D. hypotacta from Afghanistan and Pakistan, is described. Major phylogenetic clades of Dichagyris s. str. are associated to western Palaearctic and/or Central Asiatic mountainous regions. Core areas of allopatric speciation of Dichagyris s. str. are discussed with taxonomic considerations and outlook on the subgenera Yigoga and Albocosta, as well.


2021 ◽  
Vol 58 ◽  
pp. 33-39
Author(s):  
Eike Neubert

Die Erforschung der Malakofauna der Türkei wird kurz dargestellt. Als Resultat einer fast 40-jährigen Beschäftigung mit den kontinentalen Mollusken der Türkei werden einige Fakten zur Taxonomie und Biogeographie der Malakofauna des Landes vorgestellt. Wesentliche Faktoren, die die Verbreitung dieser Tiergruppe beeinflussen, werden diskutiert. Die Bedeutung des Landes als Brückenkopf für die Ausbreitung der Malakofauna des Vorderen Orients wird dargestellt. Die Bedeutung des Landes für die Radiation von Landschnecken im westpaläarktischen Rahmen wird ausgeführt. The land snails of the Eastern Mediterranean – a hot spot of the Palaearctic malacofauna Abstract: The malacological research of Turkey is briefly presented. As a result of almost 40 years of study of the continental molluscs of Turkey, some facts on the taxonomic structure of the country’s malacofauna are presented. Major factors influencing the distribution of this group of animals are discussed. The importance of the country as a bridgehead for the dispersal of the malacofauna of the Near East is presented. The importance of the country for the radiation of land snails in the Western Palaearctic framework is elaborated.


2021 ◽  
pp. 1-8
Author(s):  
Guoqing Xia ◽  
Daran Zheng ◽  
Régis Krieg-Jacquier ◽  
Qiushuang Fan ◽  
Yun Chen ◽  
...  

Abstract Terrestrial fossils from the Palaeogene of Tibet could help us to better understand the past climate and environment in this area. We herein report a new late Eocene non-marine fossil site from southern Nima Basin, central Tibet, SW China, including abundant insects and fishes. These fossils are similar to those from the late Eocene (∼39.5–37 Ma) Lunpola–Nima sediment depo-centres in sharing the dominating aquatic bug Aquarius lunpolaensis and cyprinid fishes. Chalcolestes tibetensis sp. nov., the oldest representative of the modern family Lestidae, is described. Lestidae were previously only recorded in Western Europe, and the oldest records were from the uppermost Eocene of France and the UK. The present discovery demonstrates that Lestidae already had a broad distribution during the Eocene and probably originated much earlier. The recent representatives of Chalcolestes occur in the low-altitude ponds or lakes of Western Palaearctic. Together with the other freshwater fossils in this site, this new discovery indicates a humid climate and low altitude for the Nima Basin and nearby basins in the middle part of the Bangong Nujiang suture zone.


Author(s):  
S.V. Dedyukhin

Based on research results 2018-2020 the species composition was established and the analysis of the fauna of weevils (Curculionoidea) of the Talovskaya steppe site of the Orenburg natural reserve was carried out. The research area is located in the very south-west of the Orenburg region near the border with Kazakhstan, in the subzone of the southern steppes of the East of the Russian Plain. 199 species of weevils from 4 families were identified (27 % of the fauna of the Orenburg region). Of these, 9 species are first reported for the fauna of the Orenburg Province. The characteristic features of the weevil fauna of the Talovskaya steppe are: a high proportion of Central Palaearctic species (35 %) (with an insignificant participation of Western Palaearctic forms); a sharp predominance of species of the subboreal complex (steppe and desert-steppe) (58 %) (with a very small number of forest species) and a noticeable proportion of species of the halophilic complex. The data presented in the article allow us to consider the fauna of the Talovskaya steppe as a typical southern steppe fauna. It is characterized by a fairly high species richness and the presence of a number of rare species. This is confirmed by the importance of the protected area for the preservation of the peculiar natural complexes of the southwestern outskirts of Obshchy Syrt.


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