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ago by Newbie (450 points)

For the first time in recorded history, Iceland has confirmed the presence of mosquitoes within its borders. The discovery was made by insect enthusiast Björn Hjaltason, who captured three specimens on a farm in Kjós, just north of Reykjavík. After turning them over to the Natural Science Institute of Iceland, the insects were identified as Culiseta annulata — a species known to survive in colder European climates.

The institute stated that the mosquitoes likely arrived by freight and may now be capable of surviving Iceland’s warming climate. This development reflects the broader environmental impact of global warming and increased international trade, which have introduced new insect species to Iceland in recent years. Although these mosquitoes are known to bite, the institute confirmed that Culiseta annulata does not transmit diseases in the regions where it’s typically found.

Until now, Iceland was considered mosquito-free, largely due to its cool and stable climate. With this finding, Antarctica remains the only continent without mosquitoes. The discovery highlights how climate change is rapidly altering ecosystems, even in the world’s coldest regions.

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ago by Novice (640 points)

This claim is true. Mosquitos used to not be able to thrive in Iceland due to the lack of stagnant water and its low temperatures. With their recent record-hitting heatwave, there have been sitings of a specific type of Mosquito that is able to survive the winter, Culiseta Annulata. (https://www.bbc.com/news/articles/clyz3vv62pgo). The Natural Science Institute confirmed this discovery, and has suspicions of these bugs catching a ride by freight (https://www.natt.is/is/frettir/2025/10/moskitofluga-greind-islandi-i-fyrsta-sinn). This seems to be an effect of climate change, as mentioned by the New York Times, as the Icelandic glacier “Okjokull” has completely melted away from these temperatures, while some plants and animal species are in the beginning stages of extinction and invasive species, such as these mosquitos, are making their way into the Icelandic ecosystems. (https://www.nytimes.com/2025/10/22/world/europe/iceland-mosquito-discovery.html).  

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ago by Newbie (300 points)

After researching further into this claim, I discovered that this is indeed true. Due to global warming, mosquitoes are now able to survive in Iceland, where it was previously too cold to survive. According to BBC, "Insect enthusiast Bjorn Hjaltason encountered the mosquitoes over several nights last week while using wine-soaked ropes to observe moths, local media reported. Mr Hjaltason found two female mosquitoes and one male, which were later confirmed to be Culiseta annulata, one of the few species that can successfully survive winter." https://www.bbc.com/news/articles/clyz3vv62pgo. However, they state that further monitoring and studies will have to be done to confirm that they can still survive there long-term. Overall, yes, mosquitoes are now found in Iceland, making Antarctica the only remaining place in the world where mosquitoes cannot live. 

https://www.npr.org/2025/10/22/nx-s1-5582748/iceland-mosquitoes-first-time

https://www.theguardian.com/environment/2025/oct/21/mosquitoes-found-iceland-first-time-climate-crisis-warms-country

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