Midges are a small flying insect with a wingspan of less than 2mm that often bites humans and other mammals, and through this action can spread certain diseases. Males, who don’t bite, tend to be active earlier in the year than the biting females, with activity peaking throughout summer. They prefer wet, warm conditions such as marshland. Once they’ve found a suitable food source, they release a pheromone that attracts others to join them, turning a single nuisance into a large one!