Small Swimming Mayfly

Nesameletus ornatus · Order: Ephemeroptera · Family: Nesameletidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Small Swimming Mayfly
Photo: Emily Roberts, CC BY

The small swimming mayfly lives only in New Zealand. It is native to that country and not found elsewhere.

Source: Wikipedia

Where it lives

It occurs in New Zealand.

Source: Wikipedia

Where it comes from

It is endemic to New Zealand.

Source: Wikipedia

More photos

Small Swimming Mayfly photo 2
Photo: Saryu Mae, CC BY

Questions people ask

Where is the small swimming mayfly found?

It is only found in New Zealand.

Source: Wikipedia

Sources

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

Look it up elsewhere: GBIF · iNaturalist · BugGuide · 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.