Fruit Fly Larva (Maggot)

Rotting fruit, decaying organic matter, and moist drainage areas

Yeast and bacteria growing on fermenting sugars or decaying vegetation

Larvae hatch from eggs laid on organic matter and immediately begin tunneling and feeding. They undergo three instars before pupating on a dry surface.

They are a common household pest and food contaminant; while not poisonous, they can carry bacteria. They are used extensively in genetic research.