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Content available remote Biting midges (Diptera: Ceratopogonidae) in tree hole habitats in Slovakia
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EN
The water-filled tree hole fauna of biting midges (Diptera: Ceratopogonidae) in Slovakia is documented for the first time. Three Culicoides Latreille and two Dasyhelea Kieffer species were reared from these habitats. Epidemiological significance of C. obsoletus (Meigen, 1818) is briefly discussed.
EN
The Schmallenberg virus (SBV), as a new for Europe Ortobuniaviridae genus member, emerged in Poland in 2012, spreading rapidly across the country. Serological monitoring revealed a continuous increase of seropositivity among farm ruminants; moreover, the virus was detected in the insect vector, i.e. biting midges in different regions. The sylvatic cycle of SBV infections cannot be ruled out due to the detection of SBV antibodies in 24% of free living ruminants. Breeding losses related to SBV infection are difficult to estimate because of the lack of regulations for mandatory notifications. Furthermore specific symptoms associated with congenital malformations in newborns are observed only in a small percentage of intrauterine infections. Due to the current restrictions or bans on the export of animals resulting from SBV infection significant economic losses are recorded. The emergence of a new, never previously detected in Europe arbovirus raises a number of questions about its manner of transmission, vector ecology, the possibility of its spread and prevention as well as control of the diseases.
EN
Six species of Dasyhelea KIEFFER, 1911 from Israel are recorded for the first time and detailed drawings of their male genitalia are presented. These species represent the following faunal elements: Afrotropical (Dasyhelea flava CARTER, INGRAM et MACFIE, 1921), meridional (eremial) Palaearctic (D. alboverrucosa REMM, 1967, D. punctiventris GOETGHEBUER, 1940), west Palaearctic (D. arenivaga MACFIE, 1943), arboreal Holarctic (D. bifida ZILAHI-SEBESS, 1936) and arboreal Palaearctic (D. turficola KIEFFER, 1925). D. flava is reported for the first time in the Palaearctic Region. Culicoides subneglectus VIMMER, 1932 and C. bulbostylus KHALAF, 1961 are recognized as new junior synonyms of Culicoides trivittatus VIMMER, 1932. Dasyhelea dasyptera GOETGHEBUER, 1934 is recognized as a new junior synonym of Forcipomyia frutetorum (WINNERTZ, 1852).
EN
Further records of Culicoides collected from new localities and regions are presented. C. vidourlensis (Baltic Coasts), C. abchazicus (Ojców National Park, Babia Góra Mts) and C. jurensis (Pieniny and Babia Góra Mts) are for the first time recorded from the country. At present 48 species of the genus are known to occur in Poland.
EN
This study presents data from a molecular survey of the species of the genus Culicoides from the region of Kalimok Field Station (NE Bulgaria) and haemosporidian parasites occurring in them in order to investigate the host-parasite specificity of haemosporidians to their dipteran vectors. The identification of Culicoides spp. was carried out by morphological and molecular-genetic methods. We collected and analysed 230 individuals of the genus Culicoides. Nine species were found. Eight species were identified morphologically; Culicoides obsoletus, C. riethi, C. newsteadi, C. circumscriptus, C. festivipennis, C. punctatus, C. pictipennis and C. puncticollis. The ninth species might be classified as either of C. nubeculosus or C. riethi and its identification needs additional investigations. The total prevalence of Haemoproteus in the examined biting midges was 2.17%. Three individuals of C. pictipennis were infected with the Haemoproteus lineage TURDUS2 (prevalence 16.67%), a common parasite of thrushes (Turdidae). Two individuals of C. circumscriptus contained Haemoproteus lineages (prevalence 2.78%); these were the lineage HAWF2 (previously reported from Coccothraustes coccothraustes) and a new lineage CULCIR1 not previously reported in the literature.
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