Pleasing fungus beetles (family Erotylidae) are a diverse group of colorful, mostly hairless beetles known for their striking red, orange, and black patterns. I encountered this particular beetle (Iphiclus nigriventris) in Nanegalito, a small village in the Mindo Valley in Ecuador, just a short bus ride from Quito. At first, I thought it belonged to the leaf beetle family, which includes many beetles of similar shape, although usually smaller sized. Like all members of its family, Iphiclus nigriventris is a mycophagous insect; both adults and larvae feed exclusively on the fruiting bodies of bracket fungi growing on decaying wood. Their vibrant coloration and often beautiful patterns are exactly what earned this family its charming common name.