Black and Olive Duns

Mayflies

Caddisflies

Stoneflies

Scientific Names

Match	Scientific Name
	Leptophlebia johnsoni
	Hexagenia atrocaudata

Like most common names, "Black and Olive Dun" can refer to more than one taxon. They're previewed below, along with 2 specimens. For more detail click through to the scientific names.

Mayfly Species Leptophlebia johnsoni

These are sometimes called Black and Olive Duns.

Mayfly Species Hexagenia atrocaudata

These are very rarely called Black and Olive Duns.

This species is slightly smaller than Hexagenia limbata and it occurs later in the year. It is only mentioned in passing by a few authors, but it can be locally important.

Female Hexagenia atrocaudata (Late Hex) Mayfly Dun

View 14 PicturesI found this lone Hexagenia atrocaudata dun fluttering by herself on the surface of a small, still stretch of river one evening as I paddled home from fishing for smallmouths in the warm August weather.

Collected August 5, 2005 from in
Added to Troutnut.com by on April 14, 2006

Male Hexagenia atrocaudata (Late Hex) Mayfly Spinner