This Tachinus fimbriatus, a member of the rove beetle family, Staphylinidae, was found and photographed in September, 2020 at Babler State Park in St. Louis Co, MO. Some consider the Staphylinidae the largest family of animals in North America with close to 5,000 species described in more than 500 genera. Most rove beetles are carnivorous and feed primarily upon invertebrates. However, many feed on decaying vegetation, especially as larvae. This adorable beetle is believed to feed primarily on rotting mushrooms.