Arnold Knoblauch Ring 76

Wannsee, Germany

Arnold Knoblauch Ring 76

Wannsee, Germany
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Schneider T.,Arnold Knoblauch Ring 76 | Ikemeyer D.,Billerbecker Str. 6 | Ferreira S.,University of Porto | Muller O.,Birkenweg 6d
Zootaxa | Year: 2017

Gomphus kinzelbachi was described by Wolfgang Schneider (1984) on the basis of a single teneral male captured by B. L. Sage on the Alwand River in eastern Iraq. In late April to early May 2016 two of the authors (TS and DI) discovered three individual-rich populations of this species on the large lowland river Karkeh in southwestern Iran (Khuzestãn). This is the first report of a breeding population of this species. Based on collected material we confirmed the structural differences of the male secondary genitalia between G. kinzelbachi and G. davidi on a larger number of animals. The female of the species is described. Gomphus kinzelbachi resembles most closely G. davidi, compared to all other West-Palearctic Gomphus species. Therefore, a direct comparison of the two species is given, and additionally some differential diagnostic hints for two other Gomphus species reported from Iran is provided. Our observations suggest that G. kinzelbachi reproduces on large clean lowland rivers in SE Iraq and SW Iran. In SW Iran only a free flowing stretch of the Karkeh, one of three parallel rivers (Karkeh, Karoon, Dez), seems to be suitable for this species. The other two rivers are affected by dams, dam construction, and increasing salinization. Additional dam constructions are also planned on the Karkeh River, thus, G. kinzelbachi may be on the brink of extinction. Copyright © 2017 Magnolia Press.

Dumont H.J.,Ghent University | Dumont H.J.,Jinan University | Ikemeyer D.,Billerbecker Str. 6 | Schneider T.,Arnold Knoblauch Ring 76
Odonatologica | Year: 2017

We reiterate the history of two non-metallic, pale brown to greenish-blue marked with black Lestes species-L. concinnus Hagen & Selys, 1862 and L. pallidus Rambur, 1842 -that occur over a wide geographic range in the Old World and confirm their status as variable but good species, even though their history is marked by all the defects of early taxonomy. Lestes thoracicus Laidlaw, 1920 is synonymized with L. concinnus. We find that males (females not studied) of L. concinnus and L. pallidus can be separated by the structure of the inferior terminal appendages. The taxonomic distinctness of the two species is corroborated by the base sequence of the barcoding portion of the mitochondrial gene COI (genetic distance more than 6%). There is a counterintuitive gap between the ranges of both, with only L. pallidus present in the southern Arabian Peninsula.

Schroter A.,Rasenweg 10 | Seehausen M.,Museum Wiesbaden | Kunz B.,Hauptstrasse 111 | Gunther A.,Naturschutzinstitut Freiberg | And 2 more authors.
Odonatologica | Year: 2015

A total of 63 odonate taxa were recorded in Georgia during nationwide surveys in June-July 2014, and June and July-August 2015, corresponding to at least 85% of the country's Odonata fauna. For the majority of species information from Georgia is provided in English language for the first time. Selysiothemis nigra is a new addition to the country's list. The occurrence of Chalcolestes parvidens is confirmed and previous records from Georgia listed as Lestes viridis are doubted and believed to pertain to parvidens. The second and third records only for L. macrostigma are presented. Individuals intermediate between Enallagma cyathigerum cyathigerum and E. c. risi are reported from Georgia for the first time. As to Georgian Lestes virens, the infraspecific taxonomy is critically discussed, with special reference to Central Asian forms described as ssp. marikovskii. It is recommended to avoid any further splitting into inadequately defined subspecies, as the variability of eastern forms from Central Europe towards Central Asia can be better described as clinal variation within the ssp. vestalis. In consequence, the name marikovskii is regarded as a junior synonym of vestalis: Lestes virens vestalis Rambur, 1842 = L. virens marikovskii Belyshev, 1961, syn. nov. The diversity of taxa within the Calopteryx splendens complex in the Caucasus region is considered to comprise in fact three subspecies in Georgia: ssp. intermedia, spp. tschaldirica, and ssp. mingrelica. Despite of transition zones and hybridisation each subspecies represents in toto a spatially clearly delimited unit. In ssp. intermedia androchrome females frequently occurred in the Kakheti region in the east of Georgia. The distinct female colour form 'feminalis' of Calopteryx virgo is illustrated for the first time and the availability of the name Calopteryx virgo var. feminalis Bartenev, 1910 is critically discussed. For a number of species the first information from Georgia is provided since their discovery over a century ago, such as Coenagrion armatum, Aeshna serrata, and Onychogomphus assimilis; for Coenagrion lunulatum and C. scitulum the first data since over 75 years are presented. Coenagrion ponticum was recorded throughout the country and at least at two sites found to reproduce syntopically with C. puella. New information is provided for the little known Coenagrion vanbrinkae, including a formerly unknown pink colour morph of reproductive females. The infraspecific taxonomy of Ischnura elegans is critically discussed, with special reference to the taxa pontica Schmidt, 1938 and ebneri Schmidt, 1938. In addition, new records of Pyrrhosoma nymphula and Coenagrion pukhellum, both being rare in the Caucasus region, are given. The presence of distinct Gomphus schneiderii in Georgia is confirmed as well as the continuous presence of Gomphus ubadschii at the Rioni River over 80 years after its description under the homonym «Gomphus flavipes van lineatus var. n.». Onychogomphus assimilis and O. flexuosus were found to be abundant in the eastern half of the country suggesting that Georgia is an important global stronghold for both threatened species. Males of Caliaeschna microstigma exhibited a distinctive tendency for reduced ante-humeral stripes, leaving only a small bluish patch at the posterior part in some males. Vital populations of Libellula pontica, endemic to the East Mediterranean, were found and the species is assumed to be well established in the Kakheti region in the East of the country.

Schneider T.,Arnold Knoblauch Ring 76 | Schneider E.,Arnold Knoblauch Ring 76 | Schneider J.,Arnold Knoblauch Ring 76 | Muller O.,Birkenweg 6d
Odonatologica | Year: 2014

In July 2013, a total of 14 males of Cordulegaster vanbrinkae was observed in the Hyrcanian Forest, Alborz Mountains, north-western Iran, not far from the type locality. This is only the second record of this poorly known species from Iran. Seven male specimens were collected. The variation of abdominal colour patterns and other morphological characters are shown. Notes on the biology of this species and a description of the biotope of a recently discovered population in Armenia are given.

Schneider T.,Arnold Knoblauch Ring 76 | Ikemeyer D.,Billerbecker Str. 6 | Ferreira S.,University of Porto | Ferreira S.,University of Liverpool | Muller O.,Birkenweg 6d
Zootaxa | Year: 2016

Coenagrion persicum was described by Heinrich Lohmann in 1993 on the basis of a single male and two larvae captured in 1937 by E.W. Kaiser in Lorestãn Province (W-Iran). In June 2015 two of the authors (TS and DI) rediscovered individ-ual-rich populations of this species in two Iranian provinces (Lorestãn and Esfahãn). We could confirm the structural dif-ferences of the male appendages between C. persicum and C. pulchellum based on a larger number of specimens than in the original description. The structural differences from C. pulchellum in females and their phenotypic variation pattern is described. Coenagrion persicum and C. pulchellum are also genetically distinct regarding two nDNA gene fragments: arginine methyltransferase (PRMT) and phosphoglucose isomerase (PGI). In contrast with C. pulchellum, C. persicum prefers small springs and running waters with rich herbal vegetation. Our faunistic data indicate that the species is present in the mountains between 1800 m and 2300 m a.s.l.. The species seems to be restricted to W-Iran, where it co-occurs with other rheophilic species. © Copyright 2016 Magnolia Press.

Muller O.,Birkenweg 6d | Taron U.,Stiftung Tierarztliche Hochschule Hanover | Jansen A.,Frosundaviks Alle 12 | Schneider T.,Arnold Knoblauch Ring 76
Odonatologica | Year: 2012

B. cretensis larva, endemic to the Mediterranean island of Crete, is described and illustrated from specimens collected at the Mili river near Rethymno in NW Crete, Greece and biométrie data are provided from larval stadia F-O to F-6. Based on a biométrie analysis, exuviae of the W Palaearctic B. cretensis and B. irene have been compared. In respect to some characters only small morphological differences have been found. However, major differences exist in the length of the body, abdomen, cerci, prementum and paraprocts; also in the paraproct-epiproct ratio; this applies to both males and females. Measurements of B. irene need to be taken from a wider geographical range to cover the variation in this species; this is discussed.

Schneider T.,Arnold Knoblauch Ring 76 | Schneider E.,Arnold Knoblauch Ring 76 | Schneider J.,Arnold Knoblauch Ring 76 | Vierstraete A.,Ghent University | And 3 more authors.
Odonatologica | Year: 2015

Aeshna vercanica sp. nov. is described and illustrated. The male holotype and four male paratypes were collected on 15-VII-2013 in the Hyrcanian forest of the Alborz Mountains, Ma¯zandara¯n province, northwestern Iran. A specimen collected on 29-vi-2002 in the Talysh Hills, Lankoran area, Azerbaijan, also belongs to the new species. In July 2014 the species, including females, was recorded again at the type locality and additionally ca 400 km further east in Golesta¯n province. Males are similar to Aeshna cyanea in the structure of genitalia and terminalia but differ in head morphology, pterostigma length, colour pattern, and behaviour. Females have small abdominal blue or turquoise postero-median dorsal spots which are absent on S9 and S10, thin green antehumeral stripes, a less robust appearance than females of A. cyanea, and are more slender and longer. The range of A. vercanica sp. nov. covers the Hyrcanian forest along the southern margin of the Caspian Sea. Analysis of the barcoding COI sequence of DNA confirmed that A. vercanica sp. nov. is separated from A. cyanea by a genetic distance of ca 4%. The ITS gave a similar result. A haplotype map could not derive A. vercanica sp. nov. directly from A. cyanea. They are thus related but different species, and we suggest the common ancestor lived in pre-Pleistocene times. Analysis of A. cyanea specimens from across its range also revealed a western clade from the Maghreb to Central Europe. Populations from the Caucasus to Eastern Europe were polytomous, a common scenario for post-glacial invaders. A molecular comparison of the species pair A. juncea and A. subarctica showed these to be even more closely related than A. cyanea and A. vercanica sp. nov.

Schneider T.,Arnold Knoblauch Ring 76 | Schneider J.,Arnold Knoblauch Ring 76
Zoology in the Middle East | Year: 2010

The current status and distribution of the rare and threatened dragonfly Onychogomphus macrodon (Selys, 1887) was studied in Turkey 2006-2009. Despite an intensive search for the species, it was found only at one locality in the middle course of the Ceyhan river. Other localities in Turkey, from where the species has been reported in the literature which could not be confirmed. The habitat preference of the species is described and observations on the behaviour of both sexes were made. Some morphological details are described and notes on the colour are given. Literature records are summarised and reasons for the decline of this species are discussed. © Kasparek Verlag.

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