The handsome fungus beetles (family Endomychidae) owe their name to their bright, contrasting colors and elegant shapes. They often look similar to ladybirds and live in forests all around the world. When their larvae are ready to pupate, they gather in massive clusters, anchoring themselves to the undersides of dead branches or tree bark to undergo metamorphosis as a single, communal group. As adults, they prefer to hide away during the day, reserving most of their feeding and activity for the cover of night. They frequently gather in large groups around their preferred microscopic fungi growing on damp, rotting logs. I encountered this handsome individual (Corynomalus marginatus) during my first photography excursion to the Amazon rainforest in Yasuní National Park.