Pannota
Guides
Caenoidea
Caenoidea is a superfamily of mayflies within the suborder Pannota, distinguished by the filamentous gills of their nymphs. It comprises four families: Baetiscidae, Caenidae, Neoephemeridae, and Prosopistomatidae. The filamentous gill structure serves as the primary diagnostic feature separating this group from the related superfamily Ephemerelloidea.