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Freshwater fishing

Freshwater fishing methods

Other fishing

Mayfly trout fly pattens

Description The Mayfly trout fly is a popular choice of fly as the mayfly is one of the principle trout foods throughout New Zealand. Many flies are in fact imitations of one of the many forms of the mayfly that are found throughout New Zealand.

Mayfly nymph

Purple Jesse Nymph


Pheasant Tail nymph


Pheasant Tail nymph



Blue Dun Wet

Iron Blue Dun

Twilight Beauty

Kakahi Queen


Blue Dun

Parachute Adams


Dad's Favourite

Art of Fly Fishing Calendar,

© Michael Scheele

Life cycle

Trout feed on the mayfly at all stages of its life cycle:

  • In its nymph or larval stage (see as an example Pheasant Tail)
  • As it attempts to emerge (e.g. an Invicta)
  • In its adult form which is often referred to as a dun. (See Twilight Beauty and Blue Dun as examples).
  • The female adult when it returns to the water to lay its eggs. After an elaborate courting ritual the female falls back on the water to lay her eggs and then remains there and becomes known as a spinner (see Golden Spinner as an example). It will often flutter weakly in the surface film giving rise to the term, "spinner". At this stage the mayfly is easy pickings for the trout as it drifts downstream in the current weakly trying to rise. Rises to spinners can very from good splashy takes to gentle sips as trout suck in these delicate morsels.
Type Nymph, wet fly, dry fly
Use Useful from November to February when the mayfly is active.
Represents The large and handsome Oniscigaster mayfly
For more info

Pheasant Tail
Blue Dun
Twilight Beauty
Kakahi Queen

Parachute Adams

Dad’s Favourite

See also

March Brown

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