#culex — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #culex, aggregated by home.social.
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White-dotted mosquito (Culex restuans) that I reared from an egg raft. The scales that form the white dots on the scutum can fall off over time but in a newly-eclosed adult like this an ID is pretty easy. They feed almost exclusively on birds, but sometimes on mammals and thus are one route for transmission of West Nile virus and St. Louis encephalitis. I think that because of their fondness for birds they are largely up in the tree canopy and thus whole-yard (i.e., ground-level) fogging with pyrethroids is totally ineffective. #virus #wnv #disease #mosquitoes #culex #birds #nature #inaturalist https://www.inaturalist.org/observations/359353002
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White-dotted mosquito (Culex restuans) that I reared from an egg raft. The scales that form the white dots on the scutum can fall off over time but in a newly-eclosed adult like this an ID is pretty easy. They feed almost exclusively on birds, but sometimes on mammals and thus are one route for transmission of West Nile virus and St. Louis encephalitis. I think that because of their fondness for birds they are largely up in the tree canopy and thus whole-yard (i.e., ground-level) fogging with pyrethroids is totally ineffective. #virus #wnv #disease #mosquitoes #culex #birds #nature #inaturalist https://www.inaturalist.org/observations/359353002
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White-dotted mosquito (Culex restuans) that I reared from an egg raft. The scales that form the white dots on the scutum can fall off over time but in a newly-eclosed adult like this an ID is pretty easy. They feed almost exclusively on birds, but sometimes on mammals and thus are one route for transmission of West Nile virus and St. Louis encephalitis. I think that because of their fondness for birds they are largely up in the tree canopy and thus whole-yard (i.e., ground-level) fogging with pyrethroids is totally ineffective. #virus #wnv #disease #mosquitoes #culex #birds #nature #inaturalist https://www.inaturalist.org/observations/359353002
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White-dotted mosquito (Culex restuans) that I reared from an egg raft. The scales that form the white dots on the scutum can fall off over time but in a newly-eclosed adult like this an ID is pretty easy. They feed almost exclusively on birds, but sometimes on mammals and thus are one route for transmission of West Nile virus and St. Louis encephalitis. I think that because of their fondness for birds they are largely up in the tree canopy and thus whole-yard (i.e., ground-level) fogging with pyrethroids is totally ineffective. #virus #wnv #disease #mosquitoes #culex #birds #nature #inaturalist https://www.inaturalist.org/observations/359353002
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Association of avian #biodiversity and #WNV circulation in #Culex mosquitoes in Emilia-Romagna, #Italy, https://etidiohnew.blogspot.com/2026/03/association-of-avian-biodiversity-and.html
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Association of avian #biodiversity and #WNV circulation in #Culex mosquitoes in Emilia-Romagna, #Italy, https://etidiohnew.blogspot.com/2026/03/association-of-avian-biodiversity-and.html
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Association of avian #biodiversity and #WNV circulation in #Culex mosquitoes in Emilia-Romagna, #Italy, https://etidiohnew.blogspot.com/2026/03/association-of-avian-biodiversity-and.html
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Association of avian #biodiversity and #WNV circulation in #Culex mosquitoes in Emilia-Romagna, #Italy, https://etidiohnew.blogspot.com/2026/03/association-of-avian-biodiversity-and.html
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Association of avian #biodiversity and #WNV circulation in #Culex mosquitoes in Emilia-Romagna, #Italy, https://etidiohnew.blogspot.com/2026/03/association-of-avian-biodiversity-and.html
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Detection of #WNV, #USUV and #Insect-Specific #Bunyaviruses in #Culex spp. Mosquitoes, #Greece, 2024, https://etidiohnew.blogspot.com/2025/10/detection-of-wnv-usuv-and-insect.html
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Detection of #WNV, #USUV and #Insect-Specific #Bunyaviruses in #Culex spp. Mosquitoes, #Greece, 2024, https://etidiohnew.blogspot.com/2025/10/detection-of-wnv-usuv-and-insect.html
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Detection of #WNV, #USUV and #Insect-Specific #Bunyaviruses in #Culex spp. Mosquitoes, #Greece, 2024, https://etidiohnew.blogspot.com/2025/10/detection-of-wnv-usuv-and-insect.html
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Detection of #WNV, #USUV and #Insect-Specific #Bunyaviruses in #Culex spp. Mosquitoes, #Greece, 2024, https://etidiohnew.blogspot.com/2025/10/detection-of-wnv-usuv-and-insect.html
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Detection of #WNV, #USUV and #Insect-Specific #Bunyaviruses in #Culex spp. Mosquitoes, #Greece, 2024, https://etidiohnew.blogspot.com/2025/10/detection-of-wnv-usuv-and-insect.html
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Researchers document mosquito species in Puerto Rico that launches eggs aerially, one at a time, into the pools of water that collect between bracts of a plant. See figure 2. Seriously, see figure 2. So cool. #PuertoRico #mosquito #diptera #culex #oviposition #nature #heliconiaceae https://www.nature.com/articles/s41598-025-15955-0
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#Household #expenditure on control of #urban #mosquitoes #Aedes albopictus and #Culex pipiens in #Emilia-Romagna, Northern #Italy https://journals.plos.org/plosntds/article?id=10.1371/journal.pntd.0012552
Control activities that lower the #mosquito #density in both private and public areas could reduce the use of household #insecticides in urban environments and the related costs, and the risk of spread of imported #arboviruses as well.
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#Oropouche #Fever, #Cuba, May 2024, Emerg Infect Dis.: https://wwwnc.cdc.gov/eid/article/30/10/24-0900_article
Phylogenetic analyses showed that virus responsible for a May 2024 Oropouche fever #outbreak in Cuba was closely related to viruses from #Brazil in 2023. Pools of Ceratopogonidae spp. biting #midges and #Culex quinquefasciatus #mosquitoes were positive for Oropouche viral RNA. No cases were severe. Virus extension to new areas may increase case numbers and severity.
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The First Isolation of #Insect-Specific #Alphavirus (Agua Salud alphavirus) in #Culex (Melanoconion) #Mosquitoes in the Brazilian #Amazon https://www.mdpi.com/1999-4915/16/9/1355
This study is the first report on insect-specific alphavirus isolation in Brazil and the first-ever description of Agua Salud alphavirus isolation within Amazon Forest remnants.
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Raft of mosquito eggs in one of my Bti honeypots. I think it's a Culex. Not sure whether species ID is possible — Pennsylvania has at least four species in the genus. But can rule out Culex erraticus because they oviposit onto margins of aquatic leaves in a very distinctive pattern. #mosquitoes #biology #nature #entomology #diptera #insects #culex
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#Virulence and #transmission vary between #Usutu virus #lineages in #Culex pipiens https://journals.plos.org/plosntds/article?id=10.1371/journal.pntd.0012295
Therefore, we found evidence of lineage-specific differences in vectorial capacity and virulence to both the vector and vertebrate host which lead to balanced propagation of both viral lineages.
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Timely report during a late #summer #heatwave in the #UK
#mosquitoes #westnilevirus #culex #infectiousdiseases #IDMastodon #medicine #ClimateChange
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A free-flying male #Culex quinquefasciatus mosquito in slow-motion (~20k images per second), enjoy!
#mosquitoes #highspeedcamera #slowmotion #insects #diptera #wings #flies
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In a #replicated, #controlled #experiment on wild-caught #Culex spp. #mosquitoes, Thormeyer and Tseng (2023) found no effect of #microplastics at either high doses of at field-relevant doses.
Quote: “Overall, our results showed that doses of 200 or 20,000 #particles per ml of 4.8–5.8 μm polystyrene beads had no effect on the #body #size, #development, or #growth #rate of Cx #pipiens or Cx #tarsalis.”
Paper 🔗 https://doi.org/10.1093/jme/tjad014
Explainer 🔗 https://entomologytoday.org/2023/03/02/study-microplastic-consumption-mosquitoes/
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In a #replicated, #controlled #experiment on wild-caught #Culex spp. #mosquitoes, Thormeyer and Tseng (2023) found no effect of #microplastics at either high doses of at field-relevant doses.
Quote: “Overall, our results showed that doses of 200 or 20,000 #particles per ml of 4.8–5.8 μm polystyrene beads had no effect on the #body #size, #development, or #growth #rate of Cx #pipiens or Cx #tarsalis.”
Paper 🔗 https://doi.org/10.1093/jme/tjad014
Explainer 🔗 https://entomologytoday.org/2023/03/02/study-microplastic-consumption-mosquitoes/
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In a #replicated, #controlled #experiment on wild-caught #Culex spp. #mosquitoes, Thormeyer and Tseng (2023) found no effect of #microplastics at either high doses of at field-relevant doses.
Quote: “Overall, our results showed that doses of 200 or 20,000 #particles per ml of 4.8–5.8 μm polystyrene beads had no effect on the #body #size, #development, or #growth #rate of Cx #pipiens or Cx #tarsalis.”
Paper 🔗 https://doi.org/10.1093/jme/tjad014
Explainer 🔗 https://entomologytoday.org/2023/03/02/study-microplastic-consumption-mosquitoes/
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In a #replicated, #controlled #experiment on wild-caught #Culex spp. #mosquitoes, Thormeyer and Tseng (2023) found no effect of #microplastics at either high doses of at field-relevant doses.
Quote: “Overall, our results showed that doses of 200 or 20,000 #particles per ml of 4.8–5.8 μm polystyrene beads had no effect on the #body #size, #development, or #growth #rate of Cx #pipiens or Cx #tarsalis.”
Paper 🔗 https://doi.org/10.1093/jme/tjad014
Explainer 🔗 https://entomologytoday.org/2023/03/02/study-microplastic-consumption-mosquitoes/
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In a #replicated, #controlled #experiment on wild-caught #Culex spp. #mosquitoes, Thormeyer and Tseng (2023) found no effect of #microplastics at either high doses of at field-relevant doses.
Quote: “Overall, our results showed that doses of 200 or 20,000 #particles per ml of 4.8–5.8 μm polystyrene beads had no effect on the #body #size, #development, or #growth #rate of Cx #pipiens or Cx #tarsalis.”
Paper 🔗 https://doi.org/10.1093/jme/tjad014
Explainer 🔗 https://entomologytoday.org/2023/03/02/study-microplastic-consumption-mosquitoes/
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Quelle joie de voir que l'émoi provoqué par la présence d'un #moustique chez soi en janvier stimule ainsi la curiosité scientifique et l'imagination! 🤗
https://www.youtube.com/watch?v=s15EIvJT0dg
Chère Fanny, certaines espèces de moustiques, notamment les "moustiques communs" du genre #Culex (Culex pipiens, Culex torrentium...), survivent depuis toujours à l'hiver au stade adulte en cherchant refuge dans nos maisons ou d'autres abris. 1/3
