EphemeropteraHeptageniidae – Flatheaded Mayflies

Epeorus suffusus

This record describes Epeorus suffusus (species). Recorded family: Heptageniidae. Recorded order: Ephemeroptera.

Identification and Appearance

Epeorus suffusus - Epeorus suffusus
Contributed by Roger Rohrbeck

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Ephemeroptera (Mayflies)
Suborder
Pisciforma
Superfamily
Heptagenioidea
Family
Heptageniidae (Flatheaded Mayflies)
Genus
Epeorus

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

About Mayflies: the wider group

Order-level background for Ephemeroptera, the group containing Epeorus suffusus. Species-specific details appear above.

Group overview

Ephemeroptera (mayflies) includes ~3,500 described species. Adult mayflies are famous for their extraordinarily short lifespans - some species live as adults for only 5 minutes to 24 hours, the shortest adult lifespan of any insect.

Ecological role of the group

Mayfly nymphs spend 1-2 years developing in freshwater before emerging as adults. They are key bioindicators - their presence indicates clean, well-oxygenated water. They are also a primary food source for freshwater fish.

Economic and practical significance of the group

Mayfly hatches are so massive they appear on weather radar - a 2014 Mississippi River hatch near La Crosse, Wisconsin was tracked by the National Weather Service. Mass emergences can cause slippery road conditions and traffic hazards.

Recorded sources for this group: National Weather Service, EPA bioassessment protocols. Imported estimates may describe particular regions or reporting periods.

Explore Ephemeroptera families and species →

Photos of Epeorus suffusus (4)

Epeorus suffusus - photo 1
Contributed by Roger Rohrbeck
Epeorus suffusus - photo 2
Contributed by Roger Rohrbeck
Epeorus suffusus - photo 3
Contributed by Roger Rohrbeck
Epeorus suffusus - photo 4
Contributed by Roger Rohrbeck

Photo credits: Contributed by Roger Rohrbeck

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Roger Rohrbeck. Contributors retain copyright over their individual contributions.