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New data on Odonata of the Preah Sihanouk Province of Cambodia obtained in March 2017 and November 2018 are presented. The presence of Onychargia atrocyana Selys, 1865 in Cambodia is confirmed. Twentyone species are added to the known fauna of the Kbal Chhay Waterfall environs, 19 species to that of Ream Peninsula and 4 to that of Koh Rong Island. The total number of species registered for Kampong Saom Peninsula amounts to 74. The presented data are rather of historical importance since most of the remaining forest has been quickly and irreversibly logged a few months ago. The validity of Gynacantha demeter Ris, 1911 as a species distinct from G. dohrnii Krüger, 1899 is doubted.
Globally urban wetlands are under high anthropogenic pressure of degradation. Urban wetlands are hotspots for species losses and rapid turnover in species assemblages. Therefore, studying such wetlands may provide an estimate of the pace of local extinction, concerning wetlanddependent species such as odonates. We undertook a study to document odonate species across a tropical urbanization gradient. We sampled six localities across the gradient across the Mula River that flows through the Pune City, India. We sampled adult odonates using a newly devised Halfcircle Point Count method from September 2016 to March 2017. We took multiple temporal replicates per site. We also sampled larvae across six sites once in November 2016. We measured site characteristics such as canopy cover, solid waste, and water turbidity to understand the level of disturbance at each site. We recorded 41 odonates, six species (primarily Gomphidae members) exclusively from the larval sampling. We did not find the localization of species in a particular site across the urbanization gradient, possibly because we sampled a relatively short stretch of the river to capture the variation. Here, we update the Odonata list of Pune including data on larvae. We demonstrate that larval sampling complements Odonata surveys, especially in recording Gomphids.
We recommend future research to include a longer timespan and extensive sampling area.
The article presents new faunistic data on 33 Odonata species, based on the material collected by the author in 2012, 2016 and 2017 and a systematic research in 2018 throughout the Nakhichevan Autonomous Republic (AR). Onychogomphus assimilis (Schneider, 1845) is a new record for the fauna of Azerbaijan. Eight species were registered for the first time for the territory of Nakhichevan AR: Lestes virens Rambur, 1842, Coenagrion scitulum (Rambur, 1842), Aeshna mixta Latreille, 1805, Anaciaeschna isoceles (Müller, 1764), Anax parthenope (Selys, 1839), Sympetrum sanguineum (Müller, 1764), Crocothemis erythraea (Brullé, 1832), and Selysiothemis nigra (Vander Linden, 1825).
We present records of 99 Odonata species from the Réserve Naturelle des Gorilles de Lésio-Louna (RNGLL) in the Republic of Congo (Congo-Brazzaville) collected during a short survey from 14 January to 01 February 2017. It is the first systematic Odonata inventory for the RNGLL and for the Congolese part of the species-rich Batéké Plateau. A short introduction is given about the existing knowledge of dragonflies and damselflies from the country. Amongst the recorded species eight are new for the country list, raising it to at least 208 species. Some of the recorded species are endemic and characteristic for sandy streams and rivers of the Batéké Plateau. The potential diversity of the plateau in comparison to other regions of the country is discussed.
A total of 20 Odonata species were recorded from 15 water bodies (3 natural water bodies and 12 manmade reservoirs) in a desert landscape west of the Namak Lake in the northwest of the Central Plateau of Iran, from 27 May to 20 June, 2017. The study area included Qom province and the northern part of Esfahan province (34.07 to 35.14 N, 51.33 to 50.89 E). For Qom province, 17 out of 18 species found are new provincial records. In addition Selysiothemis nigra, Orthetrum chrysostigma and Orthetrum taeniolatum are new findings for Esfahan province. The species around the manmade reservoirs are characterized by a broad ecological amplitude ("generalists") while species assemblages of natural water bodies consisted of more sensitive species. In the arid climate of central part of Iran, manmade reservoirs are major habitats for Odonata species. Although these reservoirs have increased the amount of habitat for generalist species, they do not foster sensitive and specialist species. Furthermore, considering the more intense droughts predicted for these areas in the future, and the current scenario of environmental degradation, some sensitive species may be in danger of local extinction.
A record of male and female specimens of Sinolestes editus Needham, 1930 collected in Dak Hro village (14°19'45'' N, 108°24'23'' E, alt. 1,420m a.s.l.), Dak Roong Commune, K’Bang District, Gia Lai Province, Central Highlands of Vietnam is present with a detailed description of the morphology of these two specimens.
More Odonata found at the Cardamonean foothills in Koh Kong Province of Cambodia in 2014-2018
(2018)
Still unpublished data on Odonata of the coastal foothills of the Cardamom Mts. in Koh Kong Province, SW Cambodia obtained in 2014-2018 are provided. Tetrathemis flavescens Kirby, 1889 is for the first time reported for Cambodia and Risiophlebia guentheri Kosterin, 2015 for SW Cambodia. The photographic records from this area of Gynacantha basiguttata Selys, 1882, Gynacantha demeter Ris, 1911, Heliaeschna crassa Krüger, 1899, Amphithemis curvistyla Selys, 1891 and Pornothemis serrata Krüger, 1902 have been confirmed by specimens. The known local faunas of two neighbouring rivulets in Koh Kong Province, rich in Odonata, are updated and summarised.
Records of Odonata from Gunung Melatai, Nanga Gaat and the Kastima Logging area, all in Sarawak’s Kapit Division, are presented. The most notable records are of Matronoides cyaneipennis Förster, 1897 and Heliogomphus blandulus Lieftinck, 1929. A distribution map for Matronoides cyaneipennis and updated distribution maps for three species from the Coeliccia borneensisgroup are given. Tentative identifications to species of previously published records of Idionyx females are given. The genus Heliogomphus in Borneo, Peninsular Malaysia and Singapore is reviewed and a simple one marker molecular analysis is presented for the genus in this region. Based on reexamination of specimens from the genus and the molecular results, an additional member of the genus is reported from Borneo: H. sp. cf olivaceus Lieftinck, 1961. Although both morphological and molecular results remain incomplete, it does appear likely that there is at least one more species of Heliogomphus present in Borneo than has been recognised until now, and that H. borneensis Lieftinck, 1964 may be a junior synonym of H. kelantanensis (Laidlaw, 1902).
Macromidia genialis buusraaensis subspecies nova (Odonata, Synthemisidae s.l.) from eastern Cambodia
(2018)
Macromidia genialis buusraaensis subspecies nova is described from 10 males and 2 females from three localities of Mondulkiri Province, the eastern Cambodia (the type locality: a brook downstream Buu Sraa Waterfall 12°34' N 107°25' E). The new subspecies is close to M. g. shanensis Fraser, 1927 and differs from it by an additional, and the broadest, yellow spot on S7. It is partly syntopic with Macromidia rapida Martin, 1907. A brief overview of the current knowledge of the genus Macromidia Martin, 1907 is provided.
Results of a brief examination of the spring aspect of Odonata at the Abrau Peninsula and some nearby localities on 2127th May 2018 are presented. Lestes dryas and Caliaeschna microstigma are reported for the Peninsula for the first time, revealing the world northernmost record of the latter. Some old data of Odonata at Novorossiysk and some recent erroneous data on the Krasnodarskiy Kray are referenced and discussed. The known Odonata fauna of the Abrau Peninsula reaches 38 species.