Your current chain: State of matter Life > Kingdom Animalia > Phylum Arthropoda > Subphylum Hexapoda > Class Insecta > Subclass Pterygota > Order Ephemeroptera > Superfamily Ephemeroidea
(From Wikipedia) Ephemeridae is a family of mayflies found throughout the world except Australia and Oceania.
FACT: The nymphs of these mayflies have strong legs for burrowing through silt, and often survive through predation or scavenging!
Currently discovered: 1/8 Genera
Genus