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Mansoureh Shaeghi, Hossein Dehghan, Kamran Pakdad, Fatemeh Nikpour, Azad Absavaran, Aioub Sofizadeh, Amir Ahmad Akhavan, Hassan Vatandoost, Abbass Aghai-Afshar
BACKGROUND: Aquatic insects are very abundant and divers groups of insects that are associated with an aquatic or semiaquatic environment in one or more of their life stages. These insects have been, in some cases, well studied because they are vectors of several diseases. This is the first comprehensive faunistic study of aquatic insects from Babol County. The results may provide basic data for further taxonomic and ecological studies of aquatic insects as biological control agent or classification of water quality for the country...
June 2017: Journal of Arthropod-borne Diseases
Sabrina Simon, Sven Sagasser, Edoardo Saccenti, Mercer R Brugler, M Eric Schranz, Heike Hadrys, George Amato, Rob DeSalle
Identifying transcriptional changes during embryogenesis is of crucial importance for unravelling evolutionary, molecular and cellular mechanisms that underpin patterning and morphogenesis. However, comparative studies focusing on early/embryonic stages during insect development are limited to a few taxa. Drosophila melanogaster is the paradigm for insect development, whereas comparative transcriptomic studies of embryonic stages of hemimetabolous insects are completely lacking. We reconstructed the first comparative transcriptome covering the daily embryonic developmental progression of the blue-tailed damselfly Ischnura elegans (Odonata), an ancient hemimetabolous representative...
October 19, 2017: Scientific Reports
Genta Okude, Ryo Futahashi, Masahiko Tanahashi, Takema Fukatsu
In an attempt to establish an experimental dragonfly model, we developed a laboratory rearing system for the blue-tailed damselfly, Ischnura senegalensis. Adoption of multi-well plastic plates as rearing containers enabled mass-rearing of isolated larvae without cannibalism and convenient microscopic monitoring of individual larvae. Feeding Artemia brine shrimps to younger larvae and Tubifex worms for older larvae resulted in low mortality, synchronized ecdysis, and normal development of the larvae. We continuously monitored the development of 118 larvae every day, of which 49 individuals (41...
October 2017: Zoological Science
Christopher D Beatty, Melissa Sánchez Herrera, Jeffrey H Skevington, Arash Rashed, Hans Van Gossum, Scott Kelso, Thomas N Sherratt
The study of island fauna has greatly informed our understanding of the evolution of diversity. We here examine the phylogenetics, biogeography, and diversification of the damselfly genera Nesobasis and Melanesobasis, endemic to the Fiji Islands, to explore mechanisms of speciation in these highly speciose groups. Using mitochondrial (COI, 12S) and nuclear (ITS) replicons, we recovered garli-part maximum likelihood and mrbayes Bayesian phylogenetic hypotheses for 26 species of Nesobasis and eight species/subspecies of Melanesobasis...
September 2017: Ecology and Evolution
Michael L May, John A Gregoire, Suzanne M Gregoire, Maria Aliberti Lubertazzi, John H Matthews
Mass migrations by Odonata, although less studied than those of Monarch butterflies and plague locusts, have provoked comment and study for many years. Relatively recently, increasing interest in dragonflies, supported by new technologies, has resulted in more detailed knowledge of the species involved, behavioral mechanisms, and geographic extent. In this paper we examine, in four independent but complementary studies, how larval habitat and emergence phenology interact with climate to shape the evolution of migratory strategy in Anax junius, a common species throughout much of the eastern United States and southern Canada...
2017: PloS One
F Z Mendonça, J V Bernardy, C E K Oliveira, P B G Oliveira, P De Marco
Physiological constraints in insects are related to several large-scale processes such as species distribution and thermal adaptation. Here, we fill an important gap in ecophysiology knowledge by accessing the relationship between temperature and embrionary development time in four dragonfly species. We evaluated two questions (1) what is the effect of temperature on the development time of Odonata eggs, and (2) considering a degree-day relationship, could a simple linear model describe the dependence of embrionary development time on temperature or it is better described by a more complex non-linear relation...
August 19, 2017: Neotropical Entomology
Carolina Nieto, Ximena M C Ovando, Rafael Loyola, Andrea Izquierdo, Fátima Romero, Carlos Molineri, José Rodríguez, Paola Rueda Martín, Hugo Fernández, Verónica Manzo, María José Miranda
Freshwater ecosystems are the most threatened ecosystems worldwide. Argentinian-protected areas have been established mainly to protect vertebrates and plants in terrestrial ecosystems. In order to create a comprehensive biodiverse conservation plan, it is crucial to integrate both aquatic and terrestrial systems and to include macroinvertebrates. Here, we address this topic by proposing priority areas of conservation including invertebrates, aquatic ecosystems, and their connectivity and land uses. LOCATION: Northwest of Argentina...
July 2017: Ecology and Evolution
Ricardo Koroiva, Sebastian Kvist
We evaluated the extent of intraspecific and interspecific genetic distances for two highly diverse infraorders of Odonata: Anisoptera and Zygoptera. All cytochrome c oxidase subunit I sequences (cox1), the region chosen for zoological DNA barcoding, present in GenBank for each infraorder were downloaded and curated. For Anisoptera, the final dataset consisted of 2,961 individual cox1 sequences for 536 species and the equivalent numbers for Zygoptera were 2,477 sequences for 497 species. More than 7 million individual genetic comparisons were made and the results indicated that there is a tendency towards a barcoding gap, but that the size of the gap may not be sufficient to robustly infer identities for some taxa...
July 28, 2017: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
Tammy M Duong, Ann B Gomez, Thomas N Sherratt
Aposematism is an evolved, cross-species association between a preys' unprofitability and the presence of conspicuous signals. Avian predators have been widely employed to understand the evolution of these warning signals However, insect predators are abundant, diverse, and highly visual foragers that have been shown to be capable of learned aversion. Therefore, it is likely that their behaviour also shapes the nature of anti-predator traits. In this study, we evaluated the rates of attack of a community (13 species) of mature adult dragonflies (Odonata) on artificial prey of varying size (2...
2017: PloS One
Noppadon Makbun
Burmagomphus chiangmaiensis sp. nov. (holotype: Ban Luang, Chom Thong, Chiang Mai province, Thailand, 890-900 m, 14 v 2012) is described and illustrated. It can be differentiated from its most similar congener, B. apricus from China, by shape of posterior hamulus, yellow trapezoid band on occiput, and larger size.
May 19, 2017: Zootaxa
Stefan Pinkert, Günter Bechly, André Nel
Based on three specimens, the first record of hawker dragonflies from Baltic amber is described in a new genus with two new species: Elektrogomphaeschna peterthieli gen. et sp. nov. and E. annekeae sp. nov.. They belong to the family Gomphaeschnidae and are tentatively attributed to the extinct subfamily Gomphaeschnaoidinae. The latter was previously only known from Cretaceous fossils and is here shown to have survived the K-Pg mass extinction event. This discovery also confirms the still higher diversity of Gomphaeschnidae during the Paleogene compared to the Neogene that was dominated by the more derived Aeshnidae sensu stricto...
May 29, 2017: Zootaxa
Günther Fleck
Based on a single male specimen, a remarkable new species of the genus Navicordulia is described from the Massif du Mitaraka in French Guiana (Tumuc-Humac Mountains). Another new species of this genus is also reported from the same locality but is not described. This is the first record of the genus from French Guiana, hitherto being unknown within a radius of more than 1000 km. Apparent rarity or absence of records is probably due to its secretive habits. Navicordulia tumucurakensis sp. nov. presents unique characters not present in other species of the genus including: almost no excavation of the anal angle, proximal sternal pilose ridge of abdominal segment 7 transformed into two large lateral oreillets disconnected from the median carina, additional distal sternal pilose ridge transformed into a medial knob, epiproct not extending beyond the distal half of the cerci, very long cerci surpassing those of described species, cerci lacking ventro-medial carina and tubercle and exhibiting a distal ventral brush of hair-like setae...
May 29, 2017: Zootaxa
Tom Kompier, James Holden
Gynacantha cattienensis spec. nov. is described from Cat Tien National Park, Dong Nai Province, Vietnam, on the basis of male and female specimens. This species is close in structure to G. khasiaca McLachlan, 1896, and differs in details of cerci, auricles and thorax coloration. Historical records of G. khasiaca from Vietnam may refer to this new species. Some information on its biology is provided.
May 30, 2017: Zootaxa
Claudia Möstel, Martin Schorr, Günter Bechly
A new genus and species of damselfly, Burmagrion marjanmatoki, gen. et sp. nov., is described from Early Cretaceous Burmese amber. It is attributed to the basal stem group of Coenagrionoidea. The inclusion of five wings from the same species suggests that the amber piece contains the remains of a mating pair of damselflies.
March 13, 2017: Zootaxa
Mario Schädel, Thomas S Lechner
Two new species of fossil dragonflies from the Middle Miocene fossil site Schaßbach (Carinthia, Austria) are described. The presence of Gomphaeschna carinthiae sp. nov. and Ictinogomphus hassleri sp. nov. in the fossil record of Central Europe confirms the scenario of a more widespread distribution of the represented genera in the Miocene in contrast to their Recent distribution.
March 13, 2017: Zootaxa
Angelo B M Machado, Déborah S Soldati Lacerda
The genus Platystigma Kennedy, 1920 is revalidated based mainly on the third segment of the penis that is plate-like, whereas in the other Pseudostigmatidae it is a flagellum. Dijkstra et al (2014) have merged this family into the Coenagrionidae. However, we prefer to maintain the long-used name Pseudostigmatidae until more detailed phylogenetic studies with more sampling are done. Eight species are here considered in the genus, three of which are described as new: P. humaita, P. minimum and P. quadratum. The genus is divided in two species group, jocaste and quadratum, the latter studied here...
March 13, 2017: Zootaxa
Malte Seehausen
Indolestes lafaeci sp. nov. is described and illustrated (holotype male: vi.1929, Soe, South Central Timor Regency, West Timor, Indonesia, ex.-Coll. Le Moult; deposited at the Institut Royal des Sciences Naturelles de Belgique, Brussels, Belgium). Indolestes insularis comb. nov. is proposed. For comparison, illustrations of the head, synthorax, male anal appendages and genital ligula as well as of the ovipositor of I. bellax, I. gracilis and I. insularis are given.
March 17, 2017: Zootaxa
Qi-Han Xu
The final stadium larva of Euphaea decorata Hagen in Selys is described and illustrated for the first time. The larva of E. decorata is typical of the genus and characterized by having a flat and long body with large saccoid caudal gills, seven pairs of lateral abdominal gills, two or three large and sharp spines in front of the ventral margin of the eyes, and tridentate palpal lobes of the prementum. The supposed larva of Rhipidolestes nectans is corrected to that of an unknown Euphaeidae. Known Euphaea larvae are shown to be generally very similar, but an old report suggests that the Indian species E...
March 22, 2017: Zootaxa
T Gyeltshen, V J Kalkman, A G Orr
Megalestes gyalsey spec. nov. is described from a single male from Trongsa District in Bhutan. The species was discovered during field work conducted in 2015 for the Bhutan invertebrate biodiversity project. The species is named in honour of His Royal Highness Crown Prince Jigme Namgyel Wangchuck, the Gyalsey of Bhutan, on the occasion of his first birthday.
March 22, 2017: Zootaxa
Tom Kompier, Quoc Toan Phan
Coeliccia mientrung spec. nov. is described from central Vietnam. Detailed differences from the very similar C. pyriformis Laidlaw, 1932, are provided. The female of C. pyriformis is described for the first time.
March 27, 2017: Zootaxa
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