Adult midges don't feed, causing them to have a short lifespan of only 3 to 5 days. Midge larvae feed on suspended organic matter in water and mud. Mature larvae are commonly known as blood worms because of their pink color.
Midges live near natural or man-made bodies of water. They're often confused with mosquitoes and are an important food source for fish. Midges are a nuisance to humans because of their tendency to cluster in large swarms and entice spiders. Midges are one of the most common species in an aquatic environment and are an important part of the aquatic food chain.