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gnats on a sticky trap next to a houseplant

"Gnat" is just a name for any number of small flying insects in the Nematocera family. Because it's just a loose term for anything that could be included in the category of gnat, there isn't a highly specific description of what a gnat looks like. In general, they have slender bodies, long and narrow wings, and are very small. While most gnats don't bite, some (like the the black fly or midges) are blood-sucking insects. Gnats often travel in "clouds" or a large swarm of the creatures. Most gnats generally only live about a month across their entire lifespan, from egg to adult.

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