Is A Fly A Decomposers?

Is A Fly A Decomposers? There are many invertebrate decomposers, the most common are worms, flies, millipedes, and sow bugs (woodlice). Earthworms digest rotting plants, animal matter, fungi, and bacteria as they swallow soil. Is a flies a decomposer? There are many invertebrate decomposers, the most common are worms, flies, millipedes, and sow bugs (woodlice).