I have a ventilated outdoor compost bin, primarily for food scraps. Until recently, it was a diverse ecosystem that produced good compost. About a month ago, it turned into a mono-culture of these white invertebrates.
These bugs are ruthlessly efficient, processing anything I toss in in about 2 days (except for eggshells, as pictured). But instead of producing nice loamy compost, they produce stinky, sludgy sewage.
What are these things? What would have caused them to take over? How can I return to an effective composting situation?