The micro-miner of the New Zealand bush. The polypore beetle is a master of total integration. These tiny, cylindrical beetles are anatomically specialised to spend their entire life cycle, from egg to adult, tunnelling through the tough, leathery context of woody bracket fungi. They do not merely eat the fungus. They mine it, creating a complex subterranean network of streets and galleries within the host. A single large polypore can support a thriving population of hundreds, or even thousands, of these invisible urbanites for several generations. This strategy represents a state of internal recycling, where the beetle breaks down the rigid structure of the mushroom, facilitating the return of sequestered nutrients back into the wider forest ecosystem. The life cycle is a definitive sign of a mature forest, where the cycles of growth, fungal infection and decay are fully established. As mushroom miners, they represent a state of high-density living within a singular resource, proving that even a dry, hard bracket on the side of a tawhai (beech) tree is a vibrant, multi-generational habitat. They embody the idea that habitat is a matter of persistent integration, finding a home entirely within one's dinner. This existence illustrates how significant ecological processing is driven by the most discreet residents of the fungal layer, converting tough woody fibres into the high-protein biomass that eventually feeds a variety of forest-floor insectivores. Not threatened, polypore beetles are foundational participants in the nutrient-cycling layer of our indigenous forests. They serve as a primary indicator of fungal-habitat health, proving that a healthy landscape is one that supports life in the most unlikely of places. To encounter a tiny, robust beetle emerging from a bracket fungus is to witness a survivor that has mastered the art of total integration, a creature that proves that when you are small and persistent enough, the world is a feast waiting to be mined.