Health and Me

Itisha Arya

Why Iceland Is Witnessing Mosquitoes For The First Time In History

mosquitos found in iceland

<span>Iceland</span>, one of the last regions in the world without mosquitoes, has recorded its first sightings of the insects following an unusually warm spring. The discovery was confirmed by the country’s National Science Institute on Monday, October 20, 2025. The sightings come after a record-breaking summer that accelerated glacial melting across Iceland.

Insect enthusiast Bjorn Hjaltason noticed the mosquitoes over several nights last week while observing moths using wine-soaked ropes, local media reported.

<h2>When Were Mosquitoes Detected in Iceland?</h2>

On October 16, Hjaltason shared on a Facebook group that he had spotted mosquitoes at dusk in Kidafell, Kjos. He captured some using a red wine ribbon, a trap that attracts insects with sweetened wine.

Kjos is a glacial valley about 52 km (32 miles) northeast of Reykjavik, Iceland’s capital. Hjaltason sent his specimens to the Natural Science Institute of Iceland, where entomologist Matthias Alfredsson confirmed they were indeed mosquitoes.

<h2>Climate Change Leading To Mosquito Discovery In Iceland</h2>

“The recent mosquito sightings in Iceland are likely linked to climate change,” said Carla Vieira, a scientist studying mosquito-borne viruses at QIMR Berghofer Medical Research Institute in Australia, according to The Washington Post. “Rising global temperatures and milder winters create conditions where mosquitoes can survive and reproduce in areas that were previously too cold.”

The Natural Science Institute said it’s unclear how these mosquitoes arrived in Iceland. “It’s possible they were transported via freight,” the institute stated. “Whether they’ve permanently settled here is uncertain, but conditions suggest they could survive.”

A report by Al Jazeera notes that Iceland is warming faster than almost anywhere else. In May 2025, Iceland and neighboring Greenland experienced extreme heat caused by a persistent weather pattern bringing unusually warm air from the south. Temperatures were about 13°C (23.4°F) above the 1990–2020 average, ten times higher than the global average increase of 1.3°C (2.3°F).

Glaciers have been melting rapidly and are projected to lose nearly half their volume by 2100, according to Iceland’s Vatnajokull National Park website.

However, some experts caution against quickly attributing the mosquito discovery to climate change. Alfredsson and epidemiologist Colin J. Carlson from Yale University points out that while climate change may have made the sightings more likely, the full picture of mosquito range shifts remains unclear.

<h2>Which Type Of Mosquitoes Have Been Found In Iceland?</h2>

Alfredsson identified the species as “Culiseta annulata,” a cold-resistant mosquito native to the Palearctic region, which includes Europe, North Africa, and much of Asia north of the Himalayas. These mosquitoes are not known to carry disease, though they can be bothersome.

“They survive cold climates by hibernating as adults in sheltered spaces like basements or outbuildings,” the Natural Science Institute said. “They bite but are not considered dangerous to humans in these regions, as they carry no known infections. Mosquito species adapted to cooler climates generally don’t transmit diseases.”

<h2><span rel="noindex">Can Mosquitoes Survive In Iceland</span>?</h2>

It is not known yet whether these mosquitoes will establish permanent populations in Iceland. Philip Weinstein, an infectious diseases researcher at the University of Adelaide, believes Iceland’s harsh winters may be too challenging, even for a cold-adapted species. On the other hand, Gisli Gislason, professor emeritus of limnology at the University of Iceland, thinks the mosquitoes may settle in.

Further monitoring will be needed to determine the outcome. If these mosquitoes do establish themselves, only Antarctica would remain free of the pesky insects.

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Iceland, one of the last regions in the world without mosquitoes, has recorded its first sightings of the insects following an unusually warm spring. The discovery was confirmed by the country’s National Science Institute on Monday, October 20, 2025. The sightings come after a record-breaking summer that accelerated glacial melting across Iceland.Insect enthusiast Bjorn Hjaltason noticed the mosquitoes over several nights last week while observing moths using wine-soaked ropes, local media reported.When Were Mosquitoes Detected in Iceland?On October 16, Hjaltason shared on a Facebook group that he had spotted mosquitoes at dusk in Kidafell, Kjos. He captured some using a red wine ribbon, a trap that attracts insects with sweetened wine.Kjos is a glacial valley about 52 km (32 miles) northeast of Reykjavik, Iceland’s capital. Hjaltason sent his specimens to the Natural Science Institute of Iceland, where entomologist Matthias Alfredsson confirmed they were indeed mosquitoes.Climate Change Leading To Mosquito Discovery In Iceland“The recent mosquito sightings in Iceland are likely linked to climate change,” said Carla Vieira, a scientist studying mosquito-borne viruses at QIMR Berghofer Medical Research Institute in Australia, according to The Washington Post. “Rising global temperatures and milder winters create conditions where mosquitoes can survive and reproduce in areas that were previously too cold.”The Natural Science Institute said it’s unclear how these mosquitoes arrived in Iceland. “It’s possible they were transported via freight,” the institute stated. “Whether they’ve permanently settled here is uncertain, but conditions suggest they could survive.”A report by Al Jazeera notes that Iceland is warming faster than almost anywhere else. In May 2025, Iceland and neighboring Greenland experienced extreme heat caused by a persistent weather pattern bringing unusually warm air from the south. Temperatures were about 13°C (23.4°F) above the 1990–2020 average, ten times higher than the global average increase of 1.3°C (2.3°F).Glaciers have been melting rapidly and are projected to lose nearly half their volume by 2100, according to Iceland’s Vatnajokull National Park website.However, some experts caution against quickly attributing the mosquito discovery to climate change. Alfredsson and epidemiologist Colin J. Carlson from Yale University points out that while climate change may have made the sightings more likely, the full picture of mosquito range shifts remains unclear.Which Type Of Mosquitoes Have Been Found In Iceland?Alfredsson identified the species as “Culiseta annulata,” a cold-resistant mosquito native to the Palearctic region, which includes Europe, North Africa, and much of Asia north of the Himalayas. These mosquitoes are not known to carry disease, though they can be bothersome.“They survive cold climates by hibernating as adults in sheltered spaces like basements or outbuildings,” the Natural Science Institute said. “They bite but are not considered dangerous to humans in these regions, as they carry no known infections. Mosquito species adapted to cooler climates generally don’t transmit diseases.”Can Mosquitoes Survive In Iceland?It is not known yet whether these mosquitoes will establish permanent populations in Iceland. Philip Weinstein, an infectious diseases researcher at the University of Adelaide, believes Iceland’s harsh winters may be too challenging, even for a cold-adapted species. On the other hand, Gisli Gislason, professor emeritus of limnology at the University of Iceland, thinks the mosquitoes may settle in.Further monitoring will be needed to determine the outcome. If these mosquitoes do establish themselves, only Antarctica would remain free of the pesky insects.