Known as the snowmelt mosquitoes, these species have a short season in which to grow. In order to get a head start, the larvae are adapted to survive in very cold water, including snowmelt ponds and overflow pools from frigid mountain streams. The cold water slows down their metabolism as well as their development into a flying, biting adult mosquito, which can take several weeks.
One of the most widespread, and arguably most beautiful of these cold-adapted species, is the Alpine Snowmelt Mosquito, Aedes pullatus. This mosquito is often abundant throughout the summer in mountainous areas of western North America, Europe, and Asia. They occur mainly in higher elevations, although also found less commonly as low as sea level in the colder northern latitudes.