Canthidium is a vast and diverse genus of Neotropical dung beetles (Scarabaeidae), boasting over 170 species that range from South and Central America into the southwestern United States. Most species are dedicated “tunnelers” that burrow directly beneath or beside dung piles, transporting organic matter down into vertical shafts to pack their brood chambers. Within these subterranean nurseries, pairs often divide the labor: males typically haul food down while females construct the nest chambers. Though primarily tropical, members of this resilient genus have adapted to diverse habitats—from humid lowland jungles to dry oak forests—with some high-altitude species even giving up flight entirely. I spotted this stunning, metallic specimen deep in the Amazon rainforest of Yasuní National Park in Ecuador.





