IDF-Report : newsletter of the International Dragonfly Fund
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45
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.
44
The results of an odonatological expedition to the Hose Mountains in central Sarawak, Malaysian Borneo made in April 2011 are presented. During the two-week expedition more than sixty-three species of Odonata were collected, bring the number of species of Odonata known from the Hose Mountains to over ninety-three; a number greater than that recorded from a some of Sarawak’s National Parks. Species of particular interest collected on the expedition include Drepanosticta new species, Protosticta tubau Dow, 2010 and, most notably, Chlorogomphus manau Dow & Ngiam, 2011, which was discovered during the expedition.
43
Six Odonata species were collected during night light trapping on the Mambilla Pla-teau, Taraba State Nigeria. Being predominantly diurnal insects, odonates captured in light traps have always been considered as an anomaly. The new data initiated an extensive interrogation of all records on Odonata collected near artificial light sources.A total of 415 records (402 published and 13 new) are presented here with a sum-mary of previous discussions and new discussion points. The general conclusion is that odonates are mainly confused by, rather than attracted to the light. New ave-nues for further research in this field are suggested based on previous important stu-dies undertaken on Odonata morphology and physiology.
41
Based on data collected from literature, museum collections, national databases and personal communications, an up-to-date map of the worldwide distribution of Somatochlora sahlbergi is presented. A new hypothesis is presented indicating that occurrences are at least regionally correlated with palsa mires. Two examples of larval habitats in Europe are illustrated and described, including the first observation of reproduction in Norway and the first record of co-occurrence with Zygoptera in Europe. The exuvia of S. sahlbergi is illustrated and distinguishing features briefly discussed.
40
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.
39
38
Odonata fauna of Diomabok Lake and its surroundings, Davao Oriental, Mindanao Island, Philippines
(2011)
During three visits in October and December 2010 and May 2011, a total of 56 Odonata species was recorded. All species reported here represent first Odonata records in the area. The most noteworthy discoveries were one novelty (Hydrobasileus vittatus) to the Philippine fauna and two first records (Tetracanthagyna brunnea and Aethriamanta gracilis) from Mindanao Island. Seven species represent either new species to science or potentially new species; one Drepanosticta and one Amphicnemis are new to science, and another Drepanosticta, Amphicnemis, Pseudagrion, Gomphidia and Urothemis are potentially new to science.
37
The paper compiles records from four excursions to study the Odonata fauna of southern Guizhou, China. Between 2007 and 2010 in Xiaoqikong Park and Maolan National Nature Reserve, 104 taxa have been recorded. Some interesting species are discussed, compared with sibling taxa, and information on habitats and habits is given.
36
First records for Vietnam of Fukienogomphus promineusChao, 1954 and Gomphidia abbotti Williamson, 1908 are documented with emphasis on morphological details. The previously published record of Sieboldius gigas(Martin, 1904) in Do et al. (2011) has to be corrected into Megalogomphus sommeri (Selys, 1854).
35
On our trip to Cambodia from November 14th to December 1st 2010 eight new species for the country have been verified. These are Libellago lineata, Lestes praemorsus, Argiocnemis rubescens, Pseudagrion pruinosum, Epophthalmia frontalis, Indothemis carnatica, Indothemis limbata, and Orthetrum glaucum. This publication raises the list of Cambodian Odonatato over 90 published species. This figure is considered as less than half of the actual species number that inhabits the country. Given the scarce observations based on opportunistic samples only and largely insufficiently land coverage we predict that a few new species to the science are to be expected from the future research. This opens still many opportunities to study dragonflies in Cambodia at locations nobody ever has looked for Odonata before.
34
Odonata were recorded and voucher specimens were collected between August 3- 13 and August 16-20, 2011. This account lists 51 species of Odonata for both islands, 47 species in Siargao and 24 species in Bucas Grande. Thirty seven species are new island records for Siargao Island while the 24 species recorded in Bucas Grande represent the first island records. Three species are new to science, and two of which (Drepanosticta schorri n. sp., Pseudagrion schieli n. sp.) are described in the present paper. Four species previously listed (Hämäläinen & Müller, 1997) remained elusive during the present survey.
33
During three field trips in 2006 and 2010 to Cuc Phuong National Park in northern Vietnam, a total of 19 anisopteran taxa was recorded. The most interesting records are documented here with field photographs of living specimens or collection material. Observations on their biology and behaviour are also noted.
32
During three field trips in 2009-2010 to Xuan Son National Park in Phu Tho province in northern Vietnam, a total of 13 species of damselflies of the superfamily Calo-pterygoidea were recorded. These records are documented here with field photo-graphs of living damselflies. Observations on their biology and behaviour are also noted. Three of the species are reported from Vietnam for the first time: Rhinocypha arguta, an undescribed Matrona species and Vestalaria miao. The last species was first found in Huu Lien Nature Reserve in Lang Son province in June 2008.
31
The Odonata fauna of the basin of the river Severskyi Donets in its middle current (Eastern Ukraine)
(2010)
A list of 57 Odonata species from 108 localities recorded in the basin of the river Severskyi Donets in its middle range (Eastern Ukraine) is provided. This compilation includes literature and museum data as well as results from field surveys realized between 2001 and 2009. Annotations to the history of regional odonate research are made. Brief descriptions of typical dragonfly habitats in the floodplain of Severskyi Donets are presented. Locality wise notes on the reproductive status for most of the species are made.
30
Faunistic investigations on adult insects and molecular research on larvae have identified the existence of at least four species of Odonata on the Chatham Islands. The species resemble their New Zealand counterparts, although there are morphological deviations from the typical diagnostic features. Molecular evidence is not concordant with earlier morphological results as far as the genus Xanthocnemis is concerned. Genetic data suggest there are two species on the island while morphological investigations revealed just one. This topic needs further clarification and is given special atiention in the present study. The main aim of the present study is to establish the taxonomic position of Chatham Island Xanthocnemis species and its relation to New Zealand main island fauna. It also provides some data on the biology of the local species and estimates of key demographic parameters (i.e., survival and abundance). The results show that Chatham Islands inhabitants are close morphologically to their New Zealand main island counterparts. Between-island differences in wing area and abdomen-to-body length ratio were found, but were largely atiributable to the harsh environment on the Chatham Islands and its influence on body size. Chatham Xanthocnemis exhibited low survival rates and a great diversity of female colour morphs and certain behavioural traits (like underwater oviposition), which are suspected to be due to a composite influence of low summer temperatures, constant winds, and low pH. Ultimately, the taxonomic status of the Chatham Island Xanthocnemis species needs further confirmation based on molecular analysis of adults.
29
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.
28
Based on the results of fieldwork and collecting in 2008 and 2009 and the evaluation of literature an updated national checklist of the Odonata of Kyrgyzstan is presented. The list comprises a total of 63 species, whereas 55 species were encountered in the field by the author, including five new for the country: Aeshna serrata, Onychogomphus lefebvrii, Orthetrum sabina, Crocothemis servilia, Selysiothemis nigra. 826 specimens of 49 species have been collected (dep. in coll. A. Schröter). All 55 species recorded in 2008 and 2009 are listed and annotated. Moreover, the unclear or controversial taxonomical status of several species is briefly debated. Interesting ecological observations include the emergence of Libellula quadrimaculata from running water and cleptoparasitism by Ischnura forcipata in spider webs.
27
Polillo Island is the largest among the Polillo group of islands. It is the third (ca 700sq km) largest island of the Luzon biogeographic region. The island lies in central eastern Luzon, at the western edge of Pacific Ocean and has a seasonal climate with distinct dry and wet season. The island is biologically rich with several insular species or subspecies (McGregor, 1910; Robinson, 1911; Manuel, 1957). The recent Odonata survey revealed the rich Odonata fauna of the island (Villanueva, 2010). This paper provides an update on the known Odonata based on recent fieldwork in 2010.
26
Three families in the superfamily Calopterygoidea occur in China, viz. the Calopterygidae, Chlorocyphidae and Euphaeidae. They include numerous species that are distributed widely across South China, mainly in streams and upland running waters at moderate altitudes. To date, our knowledge of Chinese species has remained inadequate: the taxonomy of some genera is unresolved and no attempt has been made to map the distribution of the various species and genera. This project is therefore aimed at providing taxonomic (including on larval morphology), biological, and distributional information on the superfamily in South China.