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The Tyva Republic, within the Russian Federation, has acquired its present name in 1991. It was formerly known as the Tuvinian Autonomous Region within the USSR. Its common names in the past centuries were Uryankhaiskii Krai or Soyotskii Krai. In modern Russian, it is known under the name Tuva (not Tyva), which will be used further in the text. This country, for example, embraces the sources of the great Siberian river Yenisei and its capital, the town of Kyzyl, represents the geographical centre of Asia. To date, this vast and clear cut territory was hitherto almost unexplored in odonatological respect. In particular, it was not visited by the outstanding Siberian odonatologist B. F. Belyshev. Scarce materials from the recent Tuvinian territory were mentioned by Valle (1942), who considered it to be Mongolian. In the only paper concerning the dragonflies of Tuva in particular (two localities in its very south) 14 species were reported (Zaika & Kosterin 1990). The "transitional form between Ophiogomphus serpentinus and O. reductus” considered in that work, however, turned out to be the Chinese-Mongolian species Ophiogomphus spinicornis (Kosterin, 1999). Finally, one of us published two works on the general lentic fauna of the Ubsu-Nur Hollow in general (Zaika, 1996) and Lake Tere-Khol' in particular (Zaika, 1999), where 26 and 9 species were listed, respectively. The latter work was based on larval identification. Because this is difficult, this information should be taken with caution. The presence of species such as Ischnura pumilio and Cordulia aenea was not confirmed by records of adults and may be erroneous.
In July 2005, Rafal Bernard requested Oleg Kosterin to collect some samples of Nehalennia speciosa from West Siberia for a DNA analysis. Oleg replied that so far he had only seen one individual of this species 25 years ago, but asked in which habitats it should be sought for exactly. Rafal sent him a draft of his paper (Bernard & Wildermuth, 2005) devoted to this subject. Having read it, Oleg came to the conclusion that this habitat (shallow water with Sphagnum and Carex limosa or C. lasiocarpa) might occupy the largest area in the world just in the boggy West Siberian Plain. Personal consultation with the geobotanist Dr. Nikolai Lashchinskii confirmed this notion. Then an almost automatic supposition followed that this area may serve as the main reservoir of N. speciosa, considered a local and endangered species in Western and Central Europe. At the same time, the existing records of N. speciosa from West Siberia were remarkably scarce. It was known from the Khanty-Mansi Autonomous Region (basins of the Tura and Konda Rivers), a small number of records from North Altai and adjacent areas north of it, a record from the steppe zone of Novosibirsk Province (Karasuk), a record in the basin of the Tuba River (Krasnoyarskii Krai), and a dubious old record from Omsk (see the map in Belyshev (1973) and a review in Bernard & Wildermuth (2005)). There was no record from the boggy Irtysh-Ob’ interfluve, where we would expect the species to flourish. This could be explained by the lack of attention by odonatologists to that interesting area. In these circumstances, the project of a special expedition(-s) was put forward, aimed to check the presence, pattern of distribution, abundance and habitat preferences of N. speciosa in these areas. For a decisive expedition we chose the Vasyugan Bog, the largest bog in the world, more precisely its north-eastern margin where we could find a good base in Plotnikovo village, Bakchar District, Tomsk Province.
A glance at the Odonata of the Cambodian coastal mountainous regions : end of dry season in 2010
(2010)
During a visit to the coastal regions of Cambodia within the Provinces of Koh Kong, Kampong Saom, Kampot and Kep within April 12-23, 2010, 59 species of Odonata were found. Of these, 51 were identified, 2 preliminarily identified (1 by exuviae, 1 to a known species with the valid name unresolved), 1 dubious (Aciagrion cf. pallidum), 3 not identified (just visual observations) and 2 seemingly undescribed, namely Burmagomphus sp. and Microgomphus sp. Fourteen species were recorded for the first time for this country, namely Neurobasis chinensis, Dysphaea gloriosa, Euphaea masoni, Onychargia atrocyana, Copera marginipes, Copera vittata, Prodasineura autumnalis Prodasineura verticalis sensu Asahina, 1983, Lathrecista asiatica, Orthetrum chrysis, Rhyothemis obsolescens, Tramea transmarina euryale, Zygonyx iris malayana, Zyxomma petiolatum; taking the current checklist for Cambodia up to 83 species. Some features of the collected specimens relevant to their taxonomy are discussed. Brief field notes are provided and Odonata records enumerated. The habitats and community of Odonata at the Cardamon Mts. foothills at the end of dry season are discussed.
Results of the odonatological survey of the coastal SW regions of Cambodia on November 28 - December 11, 2001, are presented, including field notes, enumeration of all records by locality, discussion of interesting specimens and their taxonomy and of seasonality aspects. Fifteen (14 named) species have been added to the known fauna of Cambodia: Aristocypha fenestrella (Rambur, 1842), Rhinagrion viridatum Fraser, 1938, Lestes elatus Hagen in Selys, 1862, L. platystylus Rambur, 1842, Aciagrion tillyardi Laidlaw, 1919, Agriocnemis f. femina (Brauer, 1868), Archibasis viola Lieftinck, Ceriagrion calamineum Laidlaw, 1951, Mortonagrion aborense (Laidlaw, 1914), M. falcatum Lieftinck, 1934, Pseudagrion microcephalum (Rambur, 1842), 1948, Paragomphus capricornis (Förster, 1914), Hemicordulia undescr. spec., Macrodiplax cora (Brauer, 1867), Nannophya pygmaea Rambur, 1842, plus a provisionally identified Ceriagrion indochinense Asahina, 1976. The country list now achieves 106 named species (not counting Prodasineura verticalis sensu Asahina, 1983, C. indochinense and Hemicordulia sp.). Coeliccia megumii Asahina, 1984 is synonymised with C. kazukoae Asahina, 1984. The differences between Ceriagrion olivaceum Laidlaw, 1914 and C. calamineum Lieftinck, 1951 are discussed.
Results of the odonatological survey of the coastal SW regions of Cambodia in August 12-28, 2011 are presented. Those include general notes on the Odonata fauna in late rainy season, enumeration of all records by locality, discussion of interesting specimens and their taxonomy, and notes on habitats and habits of some species. Of 87 named Odonata species encountered during the trip, 15 are reported for the first time for Cambodia, namely Aciagrion hisopa (Selys, 1876), Anax immaculifrons Rambur, 1842, Burmagomphus divaricatus Lieftinck, 1964, Gomphidictinus perakensis (Laidlaw, 1902), Merogomphus parvus (Kruger, 1899), Nepogomphus walli (Fraser, 1924), Idionyx thailandica Hamalainen, 1985, Macromia cupricincta Fraser, 1024, Macromia septima Martin, 1904, Macromidia rapida Martin, 1907, Agrionoptera insignis (Rambur, 1842), Lyriothemis elegantissima Selys, 1883, Onychothemis testacea Laidlaw, 1902, Orthetrum luzonicum (Brauer, 1868), Orthetrum testaceum (Burmeister, 1839). The country list now reaches 125 named species.
A survey of Odonata in North Ethiopia, on the route Debre Libanos – Bahir Dar – Woldia – Hayk – Mile – Awash – Debre Zeyit crossing the provinces of Oromia, Amhara and Afar, in July 29 - August 10, 2012 yielded 38 species, including two endemics of Ethiopia and five species not hitherto reliably reported for this country in the literature: Pseudagrion commoniae (Forster, 1902), P. hamoni Fraser, 1955, P. salisburyense Ris, 1921, Bradinopyga strachani (Kirby, 1900) and Ictinogomphus ferox (Rambur, 1842). The number of Odonata species recorded in Ethiopia thus reached 104. Seventeen main localities were visited, on average showing 4.9 species per locality. A small branch of Jara River, Amhara, was the richest one (15 species). Comments on specimens of Pseudagrion spernatum Selys, 1881 and Nesciothemis farinosa (Forster, 1898) and notes on the country in general and particular habitats of Odonata are provided.
In the second half of February 2014, Odonata were searched for nine days on Bali andfour days on Lombok, the western Lesser Sundas, Indonesia. One species, Orthetrum chrysishas been for the first time recorded for Bali and six species, Nosostictaemphyla, Idionyx murcia, Brachydiplax chalybea, Agrionoptera insignis, Neurothemisramburii, Rhyothemis phyllishave been for the first time recorded for Lombok. The previous lit-erature concerning the two islands is analysed. To the moment, 55 Odonata species (3 unidentified) are known for Bali and 39 for Lombok, although the actual faunas of both islands are supposed to be equally rich, and further studies on Lombok are necessary. Odonata faunas of Bali and Lombok mirror each other in respect of high shares,29 and 23%, of Odonata species ranging to the west and east of the two islands, respectively. Efficiency of Lombok Strait as a biogeographical boundary was estimated as high as 0.6, so Wallace Line is of importance for Odonata. Some diagnostic characters of N. emphyla, N. ramburii, R. phyllis phyllisand Procordulia sambawanaand a taxo-nomical situation around Prodasineura autumnalisand P. humeralis, which is not justified biogeographically, are discussed. Short notes on habitats and assemblages of Odonata are added.
Specimens of Burmagomphus asahinai Kosterin, Makbun and Dawwrueng, 2012 and Burmagomphus divaricatus Lieftinck, 1964 from SW and NE Cambodia show differences in the development of the light pattern. One male of the latter species has unusual posterior spinules on posterior hamuli. Two males of Orientogomphus minor(Laidlaw, 1931) from the same locality in NE Cambodia have substantial differences in the thoracic and abdominal pattern. NE Cambodian specimens of Gomphidia abbotti Williamson, 1907 and Lamelligomphus castor (Lieftinck, 1941) have minor differences from data on these species from literature. Caution is necessary when composing and using keys for identification of the mentioned genera of gomphids.
Two new subspecies of Hemicordulia tenera Lieftinck, 1930 (Corduliidae) from Cambodia and Thailand
(2015)
Hemicordulia tenera donnellyi ssp. nov. (holotype ♂: Chieng Mai Prov., Kunklang: highway 1009, Restaurant; 16°32.0’ N 98°31.3’ E, 1000 m, 22 v 1996, FSCA) and H. t. vikhrevi ssp. nov. (holotype ♂: Cambodia, Koh Kong Province, ~13 km ENE of Koh Kong, ‘Hemicordulia brook’, 11°39’55’’ N, 103°05’34’’ E, 315 m, 04 xii 2010, RMNH) are described from North Thailand and South-West Cambodia, respectively. The nominotypical H. tenera tenera Lieftinck, 1930 is distributed in the Malay Peninsula, Borneo, Java and Sumatra. Although these three subspecies are genetically very close, they are distinguishable by the relative length and shape of the caudal appendages.
Part 1, Oleg E. Kosterin, page 1-11:
Taxonomical notes on Indolestes Fraser, 1922 (Lestidae, Zygoptera). 1. Indolestes gracilis expressior ssp. nov. from eastern Cambodia
Abstract: Indolestes gracilis expressior ssp. nov. is described by a male from Cambodia, Mondulkiri Province, the river upstream of Buu Sraa Waterfall 12°34’ N 107°25’ E. Another male presumably belonging to this subspecies was illustrated from southern Laos in literature. The new subspecies is characterised by more inflated apical part of the cercus than in earlier known subspecies and is thought to range in plateaux of eastern Cambodia ?and southern Laos, although very rare.
Part 2, Oleg E. Kosterin and Roberto Poggi, page 13-20:
Taxonomical notes on Indolestes Fraser, 1922 (Lestidae, Zygoptera). 2. Indolestes birmanus (Selys, 1891) is bona species
Abstract: The holotype of Lestes birmana Selys, 1891 (currently Indolestes birmanus (Selys, 1891)), housed in Museo Civico di Storia Naturale di Genova, is examined and depicted
for the first time. Its cerci are not attenuated apically, hence this taxon cannot be a subspecies of Indolestes gracilis (Hagen in Selys, 1862).