24 research outputs found

    Nuevos datos del género Parhelophilus Girschner, 1897 de España, incluidos los primeros registros de P. crococoronatus Reemer, 2000 (Diptera, Syrphidae)

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    The hoverfly Parhelophilus crococoronatus Reemer, 2000 (Syrphidae: Eristalinae) was recorded from France and Portugal. In this work, it is reported from Spain for the first time. In Murcia province, the species was caught at the hydro dam “Presa de la Risca”. The habitat consisted of newly flooded forested meadows with decaying shrubs and dead trees, where the aquatic larvae of Parhelophilus live. This habitat has most likely been lost by now, as most of the area has been flooded, and the current presence of P. crococoronatus needs to be confirmed. In Granada province, P. crococoronatus was collected in a Phragmites-rich natural wetland, while in Huelva it was collected in a marshland with trees and low vegetation. The findings show that, even if the habitat of P. crococoronatus in Murcia has disappeared, the species is more widespread and has viable populations in Spain. Additional records of Parhelophilus versicolor (Fabricius, 1794) and Parhelophilus frutetorum (Fabricius, 1775) are provided.El sírfido Parhelophilus crococoronatus Reemer, 2000 (Syrphidae: Eristalinae) estaba registrado de Francia y Portugal. En este trabajo, se documenta, por primera vez, de España. En la provincia de Murcia, el hábitat donde esta especie se ha capturado es el Embalse de la Risca, constituido por valles forestales arbolados recientemente inundados, con matorrales en descomposición y árboles muertos, donde viven las larvas acuáticas de Parhelophilus. Este hábitat ha desaparecido por inundación, por lo que la presencia actual en esta ubicación de P. crococoronatus requiere de confirmación. En la provincia de Granada, P. crococoronatus se recolectó en un humedal natural dominado por Phragmites, mientras que, en Huelva, fue recolectado en un área de marismas con árboles y vegetación baja. Los presentes hallazgos muestran que, aunque el hábitat de P. crococoronatus haya desaparecido en Murcia, la especie está más extendida en España. Se proporcionan registros adicionales de Parhelophilus versicolor (Fabricius, 1794) y Parhelophilus frutetorum (Fabricius, 1775).The work reported here was partly funded by the ‘Fauna Ibérica’ Project PGC2018-095851-A-C65 of the Spanish Ministry of Science, Innovation and Universities. Antonio Ricarte’s position (Ref. UATALENTO17-08) at the University of Alicante is funded by the “Vicerrectorado de Investigación y Transferencia del Conocimiento”

    New data on the hoverflies (Diptera: Syrphidae) of Serbia and Montenegro

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    The results of a survey on the hoverflies (Syrphidae) collected by the members of the pre-conference trip of the 5th International Symposium on Syrphidae are presented. Fieldwork took place from 8-22 June 2009 and involved 18 localities (12 in Serbia and 6 in Montenegro). The sites visited are described and short notes are given on some rare species. During the 15 days of fieldwork about 5600 specimens were collected representing 59 genera and 249 species. Seven species are recorded for the first time for Serbia: Epistrophe obscuripes, Merodon equestris, Merodon haemorrhoidalis, Microdon miki, Platycheirus angustipes, Rhingia borealis and Sphegina verecunda; and 19 species are recorded for the first time for Montenegro: Cheilosia crassiseta, Cheilosia lasiopa, Cheilosia pubera, Cheilosia rufimana, Cheilosia subpictipennis, Eumerus clavatus, Eumerus sogdianus Lejogaster tarsata, Merodon haemorrhoidalis, Merodon serrulatus, Myolepta dubia, Neoascia interrupta, Neoascia tenur, Platycheirus aurolateralis, Platycheirus occultus, Platycheirus tatricus, Sericomyia silentis, Sphaerophoria laurae and Trichopsomyia flavitarsis. The threat category of the endangered species according to VUJIĆ et al. (2001) is given for the species treated in the result section. For the records of new species additional data from the collection of Department of Biology an Ecology of Novi Sad, Serbia (FSUNS) are also presented. Some morphological characters useful to differentiate Anasymyia femorata ŠIMIĆ, 1987 from A. transfuga (LINNAEUS, 1758) and Merodon haemorrhoidalis SACK, 1913 from M. constans (ROSSI, 1794) are given. The female lectotype of M. haemorrhoidalis is studied and shows that it is a distinct species similar to M. constans

    Endangered palsa mire hoverflies (Diptera, Syrphidae) in northern Sweden

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    The hoverfly species Platycheirus torei Barkalov, 2013 is recorded from Europe for the first time. It was collected in a palsa mire in Seitajaure, northern Sweden, representing a westward extension of its potential range by 3,500 km. The properties of the palsa mire at Seitajaure are described and a list of additional hoverfly species recorded there is provided. A differential diagnosis of Platycheirus torei is provided, with all cited characters illustrated in the accompanying illustrations. An extensive discussion is given on palsa mires, with special attention to their predicted loss due to climate change, and the potential risk that represents for hoverfly species that depend on palsa mires for their survival in Europe

    Revision of the Oriental species of the genus Sphegina Meigen, 1822 (Diptera: Syrphidae)

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    The Oriental species of the genus Sphegina Meigen, 1822 are revised. The following 43 new species are described: Sphegina (Sphegina) abbreviata sp. nov. (Nepal), S. (S.) angustata sp. nov. (Nepal), S (Asiosphegina) albolobata sp. nov. (Vietnam), S. (Asiosphegina) amplistylus sp. nov. (Philippines), S. (A.) atrimanus sp. nov. (Vietnam), S. (A) bifida sp. nov. (Sabah, Malaysia), S. (A) bracon sp. nov. (Vietnam), S. (A.) brevipilis sp. nov. (China), S. (A) clavigera sp. nov. (Vietnam), S. (A) collicola sp. nov. (Malaysia), S. (A.) crinita sp. nov. (Java, Indonesia; Malaysia), S. (A.) dentata sp. nov. (Taiwan), S. (A.) distincta sp. nov. (Vietnam), S. (A.) exilipes sp. nov. (Java, Indonesia), S. (A.) farinosa sp. nov. (Sabah, Malaysia), S. (A.) fimbriata sp. nov. (Thailand), S. (A.) furcillata sp. nov. (Vietnam), S. (A.) ghatsi sp. nov. (India), S. (A.) gigantea sp. nov. (China), S. (A.) granditarsis sp. nov. (China), S. (A) hamulata sp. nov. (India), S. (A) hauseri sp. nov. (Nepal), S. (A.) incretonigra sp. nov. (Vietnam), S. (A.) inflata sp. nov. (Philippines), S. (A) inventum sp. nov. (Sabah, Malaysia), S. (A.) karnataka sp. nov. (India), S. (A.) licina sp. nov. (Thailand), S. (A) lobulata sp. nov. (Vietnam), S. (A.) lucida sp. nov. (Vietnam), S. (A) nigrotarsata sp. nov. (Vietnam), S. (A.) nubicola sp. nov. (Thailand), S. (A.) ornata sp. nov. (China), S. (A.) perlobata sp. nov. (Taiwan), S. (A.) plautus sp. nov. (China), S. (A.) prolixa sp. nov. (Malaysia, Thailand), S. (A.) setosa sp. nov. (Nepal, India), S (A.) spathigera sp. nov. (Philippines), S (A) spenceri sp. nov. (Vietnam), S (A.) strigillata sp. nov. (Vietnam), S. (A) taiwanensis sp. nov. (Taiwan), S. (A.) umbrosa sp. nov. (China), S. (A) verrucosa sp. nov. (Vietnam) and S. (A) vietnamensis sp. nov. (Vietnam). Sphegina. (A.) tenuis Brunetti, 1915 is not a synonym of S. (A.) javana de Meijere, 1914. The males of S (A.) apicalis Shiraki, 1930, S (A.) tricoloripes Brunetti, 1915 and S. (A.) varidissima Shiraki, 1930 and the females of S (A.) achaeta Hippa, van Steenis & Mutin, 2015, S. (A.) index Hippa, van Steenis & Mutin, 2015, S. (A.) mirifica Hippa, van Steenis & Mutin, 2015 and S. (S.) quadriseta Huo & Ren, 2006 are described for the first time. Sphegina (5) quadriseta is recorded for the first time in the Oriental region. A key to all the Oriental species of Sphegina is provided. The Oriental fauna of Sphegina now comprises 94 species

    NEW RECORD OF SPILOMYIA TRIANGULATA VAN STEENIS, 2000 (DIPTERA: SYRPHIDAE) FROM IRAN

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    A survey was conducted to identify the hoverflies in Northern Iran during 2010-2011. As a part of this study, Spilomyia triangulata van Steenis, 2000 is recorded for the first time from Iran. Diagnostic characters and geographical distribution of the newly recorded species is briefly discussed. Supplementary photographs of the species are provided

    Taxonomic revision of the highly threatened Eumerus tricolor species group (Diptera : Syrphidae) in Southeast Europe, with insights into the conservation of the genus Eumerus

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    The diversity in the Eumerus tricolor group, the largest group within the genus in Southeast Europe, is investigated. Two new, locally distributed species are described, E. crispus Vujiv & Grkoviv, sp. n. from Serbia and E. nigrorufus Grkoviv & Vujiv, sp. n. from Montenegro. In addition to Southeast European members, one related species E. arctus van Steenis, sp. n. is described from Switzerland. We designate lectotypes for E. ovatus Loew, 1848, E. tarsalis Loew, 1848, E. tricolor (Fabricius, 1798) and E. varius Meigen, 1822. A map of the distribution of members of the E. tricolor group in Southeast Europe is provided. In addition, records from other parts of Europe are listed and an illustrated identification key to the SE European species of the E. tricolor group provided. We also study and discuss the signifi cance of small habitat patches for the preservation of species of Eumerus, because the three species described in this paper are currently known from such patches.Peer reviewe

    First records of Chrysotoxum volaticum Séguy, 1961 from Europe and Platycheirus marokkanus Kassebeer, 1998 from Spain (Diptera: Syrphidae) together with additional records of Spanish Chrysotoxum Meigen, 1803

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    The first European records of Chrysotoxum volaticum Séguy, 1961 from Spain and France, and Platycheirus marokkanus Kassebeer, 1998 from Spain are provided. These are further examples of North African species also present in the Iberian Peninsula. Diagnostic characters are given to separate C. volaticum and the similar Chrysotoxum bicinctum (Linnaeus, 1758), and additional records of other Chrysotoxum Meigen, 1803 hoverflies from Spain are also reported. We also provide DNA barcodes for C. volaticum and discuss the utility of DNA barcoding to identify species in the genus Chrysotoxum.The study of the material of Chrysotoxum in the NHM was made possible by receiving support from the SYNTHESYS project http://www.synthesys.info/ which is financed by European Community Research Infrastructure Action under the FP6 “Structuring the European Research Area” Programme. Financial support was also provided by the Spanish Ministerio de Educación y Ciencia (projects CGL2005-07213/BOS and CGL2006-13847-C02-01). Antonio Ricarte’s position (Ref. UATAL05) at the University of Alicante is funded by the ‘Vicerrectorado de Investigación y Transferencia de Conocimiento’

    A multigene phylogeny of the eristaline flower flies (Diptera : Syrphidae), with emphasis on the subtribe Criorhinina

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    We present the first multigene phylogeny focused on Eristalinae (Diptera: Syrphidae) utilizing a dataset containing 120 flower fly species from across all four subfamilies and representing 13 out of 16 tribes. Eight genes were used in the construction of the phylogeny: mitochondrial cytochrome c oxidase subunit I and the nuclear genes 28S ribosomal DNA, Alanylt RNA Synthetase, the carbamoyl phosphate synthase domain of CAD, Period, RNA-binding Protein 15 (RBP-15, 5'), Casein Kinase 1 and TULP for a total of similar to 6.7 kB of data. Eristalinae is recovered as paraphyletic with strong support for the elevation of Cerioidini, Merodontini and Volucellini to subfamilial status. Deineches, Flukea and Malometasternum render Criorhinina paraphyletic with respect to the type genus Criorhina. A clade with Criorhina, Matsumyia and Sphecomyia is strongly supported. The generic concept of Criorhina is paraphyletic, while Sphecomyia is monophyletic and Matsumyia is monophyletic but requires expansion. Evidence supports the resurrection of Romaleosyrphus and the creation of new genera. Criorhinina (stat. rev.) is restricted to contain Criorhina, Matsumyia, Romaleosyrphus and Sphecomyia. Thirteen changes to the higher classification of Syrphidae are proposed.Peer reviewe

    Tractography of developing white matter of the internal capsule and corpus callosum in very preterm infants

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    To investigate in preterm infants associations between Diffusion Tensor Imaging (DTI) parameters of the posterior limb of the internal capsule (PLIC) and corpus callosum (CC) and age, white matter (WM) injury and clinical factors. In 84 preterm infants DTI was performed between 40-62 weeks postmenstrual age on 3 T MR. Fractional anisotropy (FA), apparent diffusion coefficient (ADC) values and fibre lengths through the PLIC and the genu and splenium were determined. WM injury was categorised as normal/mildly, moderately and severely abnormal. Associations between DTI parameters and age, WM injury and clinical factors were analysed. A positive association existed between FA and age at imaging for fibres through the PLIC (r = 0.48 p < 0.001) and splenium (r = 0.24 p < 0.01). A negative association existed between ADC and age at imaging for fibres through the PLIC (r = -0.65 p < 0.001), splenium (r = -0.35 p < 0.001) and genu (r = -0.53 p < 0.001). No association was found between DTI parameters and gestational age, degree of WM injury or categorical clinical factors. These results indicate that in our cohort of very preterm infants, at this young age, the development of the PLIC and CC is ongoing and independent of the degree of prematurity or WM injury.Neuro Imaging Researc
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