Search publications of the members of the Royal Belgian institute of natural Sciences
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Invasive process and repeated cross-sectional surveys of the mosquito Aedes japonicus japonicus establishment in Belgium
- When accidentally introduced in a new location, a species does not necessarily readily become invasive, but it usually needs several years to adapt to its new environment. In 2009, a national mosquito survey (MODIRISK) reported the introduction and possible establishment of an invasive mosquito species, Aedes j. japonicus, in Belgium. First collected in 2002 in the village of Natoye from a second-hand tire company, then sampled in 2003 and 2004, the presence of adults and larvae was confirmed in 2007 and 2008. A repeated cross-sectional survey of Ae. j. japonicus was then conducted in 2009 in Natoye to study the phenology of the species on two different sites using three kinds of traps: Mosquito Magnet Liberty Plus traps, BG sentinel traps and CDC Gravid traps. An analysis of the blood meals was done on females to assess the epidemiological risks. Five species of mosquitos were caught using the different kind of traps: Culex pipiens, Cx. torrentium, Anopheles claviger, Aedes geniculatus and Ae. j. japonicus, Cx. pipiens being the most abundant. The CDC gravid traps gave the best results. Surprisingly Ae. j. japonicus was only found on one site although both sites seem similar and are only distant of 2.5 km. Its population peak was reached in July. Most of the engorged mosquitoes tested acquired blood meals from humans (60\%). No avian blood meals were unambiguously identified. Larvae were also collected, mostly from tires but also from buckets and from one tree hole. Only one larva was found in a puddle at 100 m of the tire storage. A first local treatment of Ae. j. japonicus larvae population was done in May 2012 using Bacillus thuringiensis subsp. israelensis (Bti) and was followed by preventive actions and public information. A monitoring is also presently implemented.
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Description de deux nouvelles espèces afrotropicales d'Anomala Samouelle, 1819 (Coleoptera, Melolonthidae, Rutelinae, Anomalini)
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Neomedetera, a new genus in the subfamily Medeterinae (Diptera: Dolichopodidae) from China
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A new species of Chillcottomyia from Guizhou, with a key to species from China (Diptera: Empidoidea: Hybotinae)
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New longlegged flies (Diptera, Dolichopodidae) of Seychelles
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Genetic diversity and population structure of the endangerd insect species Carabus variolosus in its western distribution range: Implications for conservation
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The genus Autocrates Thomson in china: occurrence and geographical distribution of species (Coleoptera: Trictenotomidae)
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Contribution à l'étude des Megopis Serville, 1832 de Nouvelle-Calédonie avec la description d'une nouvelle espèce: Megopis kudrnai n.sp. (Coleoptera, cerambycidae, Prioninae)
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Nouvelle contribution à l'étude de genre Ziglopton, avec la description de la femelle de Ziglipton marieae Komiya, 2003 (Coleoptera, Cerambycidae, Prioninae)
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Contribution à l'étude des Prioninae de Chine (Coleoptera, Cerambycidae, Prioninae)
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Spiders of some Forests in the Famenne (Walloon region, Belgium) sampled with pitfall trapping
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A Synopsis of the Prionine Genus Spinimegopis stat. nov. (Coleoptera, Cerambycidae, Prioninae)
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Description of a New Genus and Species of Macrotomini from Sumatra (Coleoptera, Cerambycidae, Prioninae)
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Description d'un nouveau genre, Bouyerus gen.nov., originaire d'Afrique du Sud (Coleoptera, Cerambycidae, Prioninae)
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Comment les fourmis du Thier de Lanaye nous apprennent à gérer les pelouses calcaires néerlandaises...
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First record of Abax carinatus in flanders and notes on an inventory of ground beetles in the forest reserve Jagersborg (Maaseik)
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A new species of Pygoplatys Dallas (Heteroptera, Tessaratomidae) from the Damar agroforests in Sumatra: description, immatures and biology
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Note on coprophily in the Hemiptera Heteroptera
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Chrysomelid beetles of the subfamily Galerucinae from Thailand and Cambodian in the collections of the Royal Belgian Institute of Natural Sciences (Coleoptera: Chrysomelidae)
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Revision of the Eurybrachidae (XI) The Afrotropical genus Mesonitys Schmidt, 1908 (Hemiptera, Fulgoromorpha: Eurybrachidae)
