Culiseta annulata

Culiseta annulata overwinters in its adult stage. In Northern Europe, females of this species are found in caves from autumn to early spring together with females of genus Culex (Culex pipiens, Culex torrentium, and Culex territans).^[4][5]

In the Czech Republic the most frequent animals bitten by it are european fallow deer and red deer, however it also bites humans, sheep, other deer and pigs.^[6]

On 16 October 2025 it became the first mosquito species with both male and females identified in Iceland.^[7][8]

Japanese encephalitis virus RNA has been detected in its saliva and it is a competent if inefficient vector of Tahyna virus.^[9]

• Images representing Culiseta at BOLD
• Known distribution as of 2023