Scirtoidea

The Scirtoidea are a superfamily within the order Coleoptera, commonly known as beetles. This group is characterized by antennae that are typically long and have multiple segments. The body of these beetles is well-sclerotized, meaning it has a hardened exoskeleton. Scirtoidea includes some of the most primitive types of polyphagan beetles. The superfamily is comprised of several families, including Clambidae (fringed-wing beetles), Decliniidae, Eucinetidae, and Scirtidae (marsh beetles). Marsh beetles, for instance, are small and oval, often found on vegetation in damp environments, and their larvae are aquatic.1