Oyster-mushroom
Guides
Triplax thoracica
Triplax thoracica is a small pleasing fungus beetle in the family Erotylidae, measuring 3–5.6 mm in length. The species is strongly associated with oyster mushrooms (genus Pleurotus) and has been documented occurring in dense aggregations on fruiting bodies. It occurs across the eastern half of the United States and adjacent Canada.