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Rowley J.J.L.,College St | Dau V.Q.,Institute of Ecology and Biological Resources | Nguyen T.T.,Vietnam National Museum of Nature | Cao T.T.,Vinh University | Van Nguyen S.,Institute of Ecology and Biological Resources
Zootaxa | Year: 2011

We describe a new species of small rhacophorid frog from north central Vietnam. Gracixalus quangi sp. nov. is morphologically and genetically most similar to G. gracilipes and G. supercornutus, but is distinguished from these species and all other rhacophorids in Vietnam and adjoining countries by a combination of their small size (males <25 mm); greenish, translucent skin; opaque yellow anterior surface of thighs, groin, and behind the insertion of the arm; black spots on the flanks and ventral surface of the thighs; triangularly pointed snout; and the presence of a tibiotarsal projection. Gracixalus quangi sp. nov. has a non-stereotypical, hyperextended vocal repertoire, with calls highly variable in structure, duration, amplitude and frequency (dominant frequency 4.1-4.7 kHz). Like G. gracilipes and G. supercornutus, G. quangi sp. nov. deposits egg clutches in clumps on leaves overhanging shallow forest pools or puddles. The new species is known from montane evergreen forest in Pu Hoat Proposed Nature Reserve in western Nghe An Province, between ∼600-1,300 m elevation. Preliminary molecular (mtDNA) data recovered two strongly supported clades within frogs currently considered to belong to genus Gracixalus, with the new species nested within a monophyletic clade consisting of G. gracilipes, G. supercornutus, and G. quyeti© 2011 Magnolia Press.


Nguyen T.T.,Ghent University | Verdoodt A.,Ghent University | Van Y T.,Vietnam National Museum of Nature | Delbecque N.,Ghent University | And 2 more authors.
Agriculture, Ecosystems and Environment | Year: 2015

Design: of comprehensive, standardized land evaluation tools is challenged by constraints of scale, data availability, validity, and mathematical translation and combination of diagnostic indicators. This study aims to design a GIS-based multi-criteria land suitability analysis that integrates agro-ecological aptitude, environmental impact and socio-economic feasibility criteria in a step-wise procedure combining recent advances in indicator selection, evaluation and weighing - exploiting information from various data sources - with functional mathematical combination procedures. The procedure involves: (1) selection of diagnostic land characteristics, (2) design of the corresponding evaluation criteria and consequent scoring of the diagnostic characteristics, (3) arithmetic combination of the scored characteristics into partial performance indices for agro-ecological aptitude, environmental impact and socio-economic feasibility, and (4) classification of the performance indices into aptitude, impact, and feasibility classes and determination of the overall land suitability class of the proposed land use. The tool's performance and applicability proved successful in a case study, identifying expansion zones for rubber in Quang Tri province, Vietnam. Local expert knowledge, relevant literature sources, factor-yield relationships and the discriminating power of different land characteristics within the given environment were successfully integrated to select, score and weigh diagnostic land characteristics. Explicit distinction between factors and constraints depending on the fuzziness of their spatial patterns, and between limiting and non-limiting factors depending on their impact and interaction, furthermore allowed to apply the most relevant arithmetic combination procedures. © 2014 Elsevier B.V.


Bui V.T.,Vietnam National Museum of Nature | Eguchi K.,Tokyo Metroplitan University | Yamane S.,Kagoshima University
Zootaxa | Year: 2013

The Indo-Chinese species of the genus Myrmoteras are revised. We recognise one species in the subgenus Myagroteras and six species in the subgenus Myrmoteras from Vietnam, Myanmar and Thailand. Five new species are described based on the worker caste: M. concolor, M. jaitrongi, M. namphuong, M. opalinum, and M. tomimasai, all belonging to the sub-genus Myrmoteras. Copyright © 2013 Magnolia Press.


Do M.C.,Vietnam National Museum of Nature | Karube H.,Kanagawa Prefectural Museum of Natural History
Zootaxa | Year: 2011

A new species Nihonogomphus schorri Do & Karube, sp. nov. is described on the basis of male specimens collected from Huu Lien Nature Reserve, Lang Son Province, northern Vietnam. It is close to the Chinese species N. bequaerti Chao, 1954 due to the similarity of hamules, anal appendages and vesicle, but is easy to separate from that species by the vesica spermalis structure and body markings. Copyright © 2011 · Magnolia Press.


Eguchi K.,Nagasaki University | Viet B.T.,Vietnam National Museum of Nature | Yamane S.,Kagoshima University
Zootaxa | Year: 2011

Alpha taxonomy of Vietnamese ants was initiated by European and American authors in the early 20th century, and approximately 160 species and infraspecific taxa were described or recorded in this early period. From 1965 to 1966 an inventory project of insects in northern Vietnam was conducted by the Agriculture Ministry of Vietnam, and 36 ant species were recorded. The identity of those taxa, however, needs to be revised based on the modern taxonomy of ants. Since the end of the 1980's dozens of ant species have been newly recorded or described from Vietnam. Regional revisions dealing with Vietnamese species have also been published for several genera including Myrmica, Probolomyrmex, Pheidole, Acanthomyrmex and Anillomyrma. Furthermore, two new genera, Parvimyrma (Myrmicinae) and Opamyrma (Amblyo- poninae), were recently described from the country. However, there has been no comprehensive systematic treatment of the Vietnamese ants to date. In order to develop the taxonomy of ants in Vietnam, we have begun a program to: (1) explore local ant faunas; (2) give species codes to all species; (3) overview ant genera known from Vietnam; (4) describe unnamed taxa and review higher taxa known from Vietnam and adjacent areas. Ninety-two genera in twelve subfamilies have so far been recognized by us: DOLICHODERINAE: Chronoxenus, Dolichoderus, Iridomyrmex, Liometopum, Ochetellus, Philidris, Tapinoma, Technomyrmex; FORMICINAE: Acropyga, Anoplolepis, Camponotus, Cladomyrma, Echinopla, Gesomyrmex, Lasius, Lepisiota, Myrmoteras, Nylanderia, Oecophylla, Paratrechina, Paraparatrechina, Plagiolepis, Polyrhachis, Prenolepis, Pseudolasius, Undescribed genus "eg-2"; PSEUDOMYRMECINAE: Tetraponera; CERAPACHYINAE: Cerapachys, Simopone; AENICTINAE: Aenictus; DORYLINAE: Dorylus; LEPTANILLINAE: Leptanilla, Protanilla; AMBLYOPONINAE: Amblyopone, Myopopone, Mystrium, Opamyrma, Prionopelta; PONERINAE: Anochetus, Centromyrmex, Cryptopone, Diacamma, Harpegnathos, Hypoponera, Leptogenys, Odontomachus, Odontoponera, Pachycondyla, Platythyrea, Ponera; ECTATOMMINAE: Gnamptogenys; PROCERATIINAE: Discothyrea, Probolomyrmex, Proceratium; MYRMICINAE: Acanthomyrmex, Anillomyrma, Aphaenogaster, Calyptomyrmex, Cardiocondyla, Cataulacus, Crematogaster, Dacatria, Dilobocondyla, Gauromyrmex, Kartidris, Lasiomyrma, Liomyrmex, Lophomyrmex, Lordomyrma, Mayeriella, Meranoplus, Monomorium, Myrmecina, Myrmica, Myrmicaria, Oligomyrmex, Paratopula, Parvimyrma, Pheidole, Pheidologeton, Pristomyrmex, Proatta, Pyramica, Recurvidris, Rhopalomastix, Rhoptromyrmex, Solenopsis, Strumigenys, Temnothorax, Tetramorium, Vollenhovia, Vombisidris. As the first major contribution to the third goal of the program, here we provide: (1) a key to subfamilies, (2) a key to myrmicine genera, and (3) a synopsis of myrmicine and pseudomyrmecine genera known from Vietnam. A second paper will deal with the Aenictinae, Cerapachyinae, Dorylinae, Leptanillinae Amblyoponinae, Ponerinae, Ectatomminae and Proceratiinae, and a third with the Dolichoderinae and Formicinae. Copyright © 2011 Magnolia Press.


Nazarov R.,Moscow State University | Poyarkov N.A.,RAS A.N. Severtsov Institute of Ecology and Evolution | Orlov N.L.,Russian Academy of Sciences | Phung T.M.,Dong Khoi 9A | And 3 more authors.
Zootaxa | Year: 2012

We describe two new species of the Cyrtodactylus irregularis complex both based on phylogenetic analysis of 654 bp of COI mtDNA gene and morphological analyses of voucher specimens from Binh Phuoc and Lam Dong provinces, southern Vietnam. Cyrtodactylus bugiamapensis sp. nov. is described from the monsoon tropical forests of Bu Gia Map National Park, Binh Phuoc Province, and is distinguished from the remaining representatives of the C. irregularis complex by a combination of the following characters: (1) size medium, with a maximum SVL of 76.8 mm; (2) original tail relatively thin, longer than body; (3) presence of enlarged femoral scales without femoral pores; (4) preclocal groove lacking; (5) 36-46 longitudinal rows of ventral scales at midbody; (6) males with 7-11 precloacal pores in an angular continuous series; (7) absence of enlarged subcaudals; (8) dorsal pattern consisting of a dark neck band which can be medially divided, and irregular dark brown spots with bright white edges. Cyrtodactylus bidoupimontis sp. nov. is described from mountainous evergreen tropical forests of Bidoup - Nui Ba National Park, Lam Dong Province, and is most similar to C. irregularis sensu stricto from which it is distinguished by a combination of the following characters: (1) absence of enlarged, strongly keeled conical tubercles on the dorsal tail-base; (2) presence of flat rounded smooth to weakly keeled dorsal tubercles; (3) pallid dorsal head surface pattern lacking distinct dark brown irregular spots with light edges; and (4) elongated limbs. Phylogenetic analyses revealed the presence of a number of cryptic allopatric species within the C. irregularis complex. Long geological history and complicated relief of the Lang Bian plateau and surrounding areas might have shaped the present diversity within the C. irregularis complex. COI DNA-barcoding appears to be a useful tool to reveal cryptic diversity within the genus Cyrtodactylus. Copyright © 2012. Magnolia Press.


Guzeeva E.A.,RAS Severtsov Institute of Ecology | Van Luc P.,Vietnam National Museum of Nature | Spiridonov S.E.,RAS Severtsov Institute of Ecology
Zootaxa | Year: 2010

A new thelastomatid species, Aoruroides cochinchinensis sp. n., is described from the hindgut of Vietnamese Panesthiinae cockroaches collected in Bi Doup-Nui Ba National Park. It is the first report of nematodes of the genus Aoruroides Travassos & Kloss, 1958 from mainland Asia. Aoruroides cochinchinensis sp. n. males are characterized by thorn-like cuticular projections on the head end, maximal value of de Man index a (19.5) within the genus, and the nerve ring situated on the border of corpus and isthmus. Earlier, only knob-like cervical cuticular projections were described for males of A. queenslandensis Jex, Cribb & Schneider, 2004. Copyright © 2010 Magnolia Press.


Lien V.V.,Vietnam National Museum of Nature
Russian Entomological Journal | Year: 2015

Diversity of butterfly communities of a limestone tropical rain forest was carried out in four different habitat types (the natural forest, the secondary forest, the shrub and grass, and the inhabitant) in Xuan Son National Park, North Vietnam from 2010 to 2012. A total 139 species with 1,041 individuals of butterflies were recorded. The secondary forest has the greatest individual and species numbers; the shrub and grass habitat has more individual and species numbers than the natural forest; the inhabitant has the least individual and species numbers. The species composition and abundance of butterfly communities is similar between similar habitats (the natural forest and the secondary forest; and the shrub and grass and the inhabitant). There was a positive correlation between the size of species geographical distribution and the increasing forest habitat clearance levels. Although the natural forest has lower butterfly diversity, it is home of restrict geographical distribution range where plays an important role for conservation of rare butterfly species; the secondary forest plays an important role in conserving higher butterfly diversity; while the inhabitant shows the poorest butterfly diversity. © RUSSIAN ENTOMOLOGICAL JOURNAL, 2015.


Eguchi K.,Tokyo Metroplitan University | Viet B.T.,Vietnam National Museum of Nature | Yamane S.,Haruyama cho 1054 1
Zootaxa | Year: 2014

Of the subfamilies and genera known from Vietnam, the following taxa are treated in this second part of the series entitled "Generic Synopsis of the Formicidae of Vietnam": CERAPACHYINAE: Cerapachys, Simopone; AENICTINAE: Aenictus; DORYLINAE: Dorylus; LEPTANILLINAE: Leptanilla, Protanilla; AMBLYOPONINAE: Myopopone, Mystrium, Opamyrma, Prionopelta, Stigmatomma; PONERINAE: Anochetus, Brachyponera, Buniapone, Centromyrmex, Cryptopone, Diacamma, Ectomomyrmex, Euponera, Harpegnathos, Hypoponera, Leptogenys, Mesoponera, Odontomachus, Odontoponera, Parvaponera, Platythyrea, Ponera, Pseudoneoponera; ECTATOMMINAE: Gnamptogenys; PROCERATIINAE: Discothyrea, Probolomyrmex, Proceratium. For each of these subfamilies we provide keys to genera (when there is more than one genus) known from Vietnam. For each genus we provide a synopsis and a list of Vietnamese species. © 2014 Magnolia Press.


Malysheva S.V.,RAS A.N. Severtsov Institute of Ecology and Evolution | Van Luc P.,Vietnam National Museum of Nature | Spiridonov S.E.,RAS A.N. Severtsov Institute of Ecology and Evolution
Russian Journal of Nematology | Year: 2012

Insulanema longispiculum, a new genus and species of Carnoyidae (Rhigonematomorpha), is described from the hind gut of diplopod Apeuthes Attems, 1937 (Spirobolida: Trigoniulidae), collected on Phu Quoc Island in the Kien Giang Province, Vietnam. The new genus is characterised by the absence of any spines or other cuticular formations in the cervical region of both male and female, the presence of six cuticular pieces around the oral opening, the presence of a smooth cephalic cap and area rugosa in the male, very long isomorphic and isometric spicules, boat-shaped gubernaculum with a dorsal hole and 14 genital papillae with two postcloacal pairs subventral and one posteriormost pair subdorsal in the middle of conical part of the tail. Insulanema gen. n. could be easily distinguished from African and Australasian Carnoyidae by the position of the last postcloacal pair of genital papillae and enormously long spicules in the male.

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