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Cordulegaster vanbrinkae Lohmann, 1993 (Odonata: Anisoptera) discovered in Armenia

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On 13 July 2010, in a woodland near the village of Verin Khotanan, Armenia, five males of Cordulegaster vanbrinkae were captured. These specimens are documented, compared with the holotype from Iran and discussed in detail. The current protection situation of this species in Armenia is briefly commented. In addition, the locus typi-cus information of the holotype from Iran is corrected and detailed.
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... picta Selys, 1854 it represents the eastern subgroup (Verschuren 1989;Boudot 2001). Cordulegaster vanbrinkae is the darkest species of the genus, with the yellow dots on the abdomen reduced (Lohmann 1993;Ananian & Tailly 2012;Schneider et al. 2014). It was described based on one specimen collected 1971 north of the locality of Veysar near the town of Chalus, in the Alborz Mountains in northern Iran (Lohmann 1993). ...
... It was described based on one specimen collected 1971 north of the locality of Veysar near the town of Chalus, in the Alborz Mountains in northern Iran (Lohmann 1993). Subsequently, C. vanbrinkae was recorded in 2010 in south-eastern Armenia in the surroundings of Verin Khotanan village (Ananian & Tailly 2012) and then in 2013 at two localities in the Caspian region: One in south-eastern Azerbaijan in the surrounding of the Azfilial settlement (Skvortsov & Snegovaya 2014) and another in the area surrounding the type locality in Iran (Schneider et al. 2014). ...
... Besides, as a juvenile individual was found on 14-vii-2014, it is likely that the flight period will reach the first half of August. This corresponds to the situation in Armenia, where no imago was found on the wing after mid-August (Ananian & Tailly 2012). The peak of the flight period probably extends over July. ...
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The occurrence of Cordulegaster vanbrinkae was studied in Gīlān and Māzandarān provinces in northern Iran in July 2014. Ten localities demonstrated the occurrence of C. vanbrinkae at elevations from 169 to 1,424 m a.s.l. Larvae were found at seven localities and oviposition was observed at two localities. A total of 65 males, five females, 95 larvae, and 32 exuviae were found. Habitats were classified into the following types: a) narrow, shallow streams in forests at middle and higher altitudes; b) boulder-stepped shaded forest streams; c) deep cut forest streams with gravel banks, drying to intermittent pools; and d) broader sunlit rivers.
... Since the description of the male, no other specimens were collected in northern Iran until Schneider et al. (2014) found a numerous population with 14 males identified in 2013. Outside of Iran, five males of this species were collected in 2010 in southeastern Armenia near the village of Verin Khotanan (Ananian & Tailly 2012). In 2013, this species was also found in southern Azerbaijan in the vicinity of the Azfilial settlement, where only four males were collected (Skvortsov & Snegovaya 2014). ...
... Both Ananian & Tailly (2012) and Schneider et al. (2014) described the colour pattern variability of this species, based on the males they collected. However, the female remains unknown. ...
... The females of the present species are easily recognisable and unmistakable when compared with those of other taxa, thanks to their predominantly black abdomen, marked by only tiny lunulae as in the males. Within the genus Cordulegaster, no other species has such a reduced yellow abdominal pattern (Lohmann 1993, Ananian & Tailly 2012, Schneider et al. 2014, although rare single "aberrant individuals of C. picta may appear almost similarly black at a distance (Boudot, 2014), and also of C. heros (Holuša 2012). The variability of the yellow pattern in the three mature females collected remains low in comparison to the overall variability known in males, probably due in part to the small number of specimens studied. ...
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Four species of Tumidiclava Girault are recorded from Xinjiang Uyghur Autonomous Region, China. Two new species, T. buerjinica Triapitsyn & Aishan sp. nov. and T. tamariska Hu & Aishan sp. nov., are described; the former is also known from Turkmenistan and the latter from Israel. One Palaearctic species, T. subcaudata Nowicki, is newly recorded from China, and a key to females of the Chinese species is given. Taxonomic notes and illustrations are provided on these and also other described taxa of Tumidiclava from the Holarctic region, both sexes of which are keyed including the type species of the genus, T. pulchrinotum Girault (USA), whose male is newly described. Lectotypes are designated for Orthoneura bimaculata Blood & Kryger, 1928 and T. (Orthoneurella) minuscula Nowicki, 1940 and a neotype is designated for Orthoneura bimaculata Blood, 1923.
... Since the description of the male, no other specimens were collected in northern Iran until Schneider et al. (2014) found a numerous population with 14 males identified in 2013. Outside of Iran, five males of this species were collected in 2010 in southeastern Armenia near the village of Verin Khotanan (Ananian & Tailly 2012). In 2013, this species was also found in southern Azerbaijan in the vicinity of the Azfilial settlement, where only four males were collected (Skvortsov & Snegovaya 2014). ...
... Both Ananian & Tailly (2012) and Schneider et al. (2014) described the colour pattern variability of this species, based on the males they collected. However, the female remains unknown. ...
... The females of the present species are easily recognisable and unmistakable when compared with those of other taxa, thanks to their predominantly black abdomen, marked by only tiny lunulae as in the males. Within the genus Cordulegaster, no other species has such a reduced yellow abdominal pattern (Lohmann 1993, Ananian & Tailly 2012, Schneider et al. 2014, although rare single "aberrant individuals of C. picta may appear almost similarly black at a distance (Boudot, 2014), and also of C. heros (Holuša 2012). The variability of the yellow pattern in the three mature females collected remains low in comparison to the overall variability known in males, probably due in part to the small number of specimens studied. ...
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Zootaxa 3949 (2): 229–238 www.mapress.com/zootaxa/ Article 229 http://dx.doi.org/10.11646/zootaxa.3949.2.5 http://zoobank.org/urn:lsid:zoobank.org: Abstract The female of Cordulegaster vanbrinkae is described and illustrated, basing on four specimens collected in Gīlān and Māzandarān Provinces, northern Iran. Their characters and variability are shown and compared with females of other Cor-dulegaster species.
... In June 2014, a puzzling male Cordulegaster was captured and released at Verin Khotanan in Syunik province, Armenia in the same village where Cordulegaster vanbrinkae was discovered in 2010 (Ananian & Tailly 2012). This specimen could not be clearly assigned to one of the four valid species present in the Transcaucasus ecoregion (Cordulegaster insignis; C. (insignis) mzymtae; C. picta; C. vanbrinkae). ...
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During four field trips in Georgia, Armenia and Azerbaijan from 2010 to 2018, the author collected data of a total of 55 species. This study provides first insights into new or rare species in this ecoregion. Ischnura fountaineae and Cordulia aenea were found for the first time in Armenia. We also highlight the rediscovery of some species that were mentioned in the older literature but had not been confirmed since. An autochthonous population of Lestes macrostigma was discovered in Azerbaijan sixteen years after the single previous record by Dumont (2004). Original information is provided on the distribution of some rare species encountered in these countries. Finally, the identification of a puzzling Cordulegaster sp. observed in south Armenia is discussed briefly
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Citation: Holuša (2022): Description of the last instar larva of Cordulegaster vanbrinkae and emergence place from northern Iran (Odonata: Cordulegastridae). Abstract. The larva of Cordulegaster vanbrinkae Lohmann, 1993 is described and illustrated based on fourteen final instar larvae and 49 exuviae that were collected in Gīlān, Māzandarān and Golestān provinces, in northern Iran in July 2014, July 2017 and August 2018. Larvae of Cordulegaster vanbrinkae show signs of lateral spine on 8 th segment missing , ratio of lateral spine on 9 th segment/9 th segment is 0.03-0.15 and 5 (rarely 6) long premental setae. The characters have a clear variability and there is a noticeable overlap of character values with related species-Cordulegaste picta and Cordulegaster heros. Emergence habitat are described and analysed.
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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.
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