Yellow Mayfly

Potamanthus luteus · Order: Ephemeroptera · Family: Potamanthidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Yellow Mayfly
Photo: Sanja565658, CC BY-SA 3.0

The Yellow Mayfly, Potamanthus luteus, is a hacklegilled burrower mayfly in the family Potamanthidae. It occurs across mainland Europe and, in the UK, has been recorded mainly on the Rivers Usk and Wye.

Source: Wikipedia

How to recognize it

Potamanthus luteus is commonly called the Yellow Mayfly.

Source: Wikipedia

Where it lives

The species lives in freshwater habitats across mainland Europe. In Britain it has been found mainly on the Rivers Usk and Wye.

Source: Wikipedia

Where it comes from

Its range includes many parts of mainland Europe.

Source: Wikipedia

More photos

Yellow Mayfly photo 3
Photo: Sanja565658, CC BY-SA 3.0
Yellow Mayfly photo 4
Photo: Catherine Mahyeux, CC BY-SA 3.0
Yellow Mayfly photo 5
Photo: Sanja565658, CC BY-SA 3.0
Yellow Mayfly photo 6
Photo: Sanja565658, CC BY-SA 3.0

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Potamanthus_luteus

Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia

Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.