The Pecatonica River mayfly, Acanthometropus pecatonica, was a species of insect in the family Siphlonuridae.
Siphlonurus lacustris is a species of 'mayflies' belonging to the Family Siphlonuridae Order Ephemeroptera (from the Greek ephemeros = "short-lived", pteron = "wing", referred to the short life of adults).
Tasmanophlebi lacus-coerulei is a species of insect in family Siphlonuridae.