Update, Oct. 21, 2025 at 1:17 pm ET: Live Science has learned that Iceland is no longer mosquito-free. Three mosquitoes — two females and one male — were found in the garden of a private residence between Oct. 16 and Oct. 18 in the municipality of Kjósarhreppur (also known as Kjós), according to the Iceland Monitor. In a Facebook post in the group Skordýr á Íslandi ("Insects in Iceland"), the man who found them, Björn Hjaltason, said "I could tell right away that this was something I had never seen before."
Matthías Alfreðsson, an entomologist at the Icelandic Institute of Natural History, confirmed that the mosquitoes belong to the species Culiseta annulata, the Iceland Monitor reported.
