Columbatz fly, scientifically known as Simulium columbatzense, is a species of black fly found in North America. These insects are notorious for their painful bites. To describe these blood-sucking pests, there are various synonyms available. One such synonym is "buffalo gnat", which aptly captures their hump-backed appearance. Additionally, they are commonly referred to as "turkey gnats", owing to their prevalence during Thanksgiving seasons. Another synonym for Columbatz Fly is "no-see-ums" – a term used to highlight their minuscule size, making them difficult to spot. People often use these synonyms interchangeably to describe these bothersome insects, but regardless of what you call them, their bites are universally unwelcome.