Species: fly (animal)

Flies are an easily recognizable insect, notorious for being a pest in human culture. Flies, from the order Diptera, are known for their single pair of wings, large compound eyes, and special mouth parts.

Not to be confused with:

butterfly, though it has fly in its name, is actually a species of lepidopteran.
damselflies and dragonflies, though having fly in their name, are actually species of odonata.
firefly, though it has fly in its name, is actually a species of beetle.
the act of flying