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Fly life on Lough Corrib varies depending on the season and weather conditions and, indeed the appearance of fly on the lough can also vary greatly from area to area.  With so many aspects affecting the hatch it's not possible to predict when they will arrive with any real degree of accuracy however the following information should provide a loose guide for the visiting angler: 

Very Early Season - February to April

Chironomid (Midge Pupa/Duck Fly)

The trout are particularly hungry at this time of year having returned from the spawning grounds and are looking for substantial food.  Trout taken at the beginning of the season tend to be taken on lures and spinners however when the 'Duck Fly' hatches begin in March anglers will switch to the fishing the fly.

May Fly
Early Season - April to June

Chironomid (Midge Pupa)
Cloeon Simile (Lake Olive)
Danica (Mayfly)
Asselus Aquaticus (Hog Louse)

This part of the season sees an abundance of food available to the fish, so much so that they can become quite pre-occupied on one type of insect.   The 'buzzer' fishing can still be very good.   Look out for signs of the Campto buzzer hatching off, the pupa is huge compared to the more usual buzzers and it's pretty much impossible to fish a buzzer that's too large to imitate it.  Olive fishing can be fantastic both on the nymph and the dry fly.   Many fish fall to the dry Mayfly and it's also worth fishing patterns suggestive of a Mayfly nymph on a midge tip or ghost tip.

Mid Season - June to August

Cloeon Simile (Lake Olive)
Trichoptera (Caddis or Sedge)

The really avid anglers tend to alter their fishing hours at this time of year and will be on the lake for sunrise looking for early morning Caenis feeders and, if they are really keen, out again in the evening to fish dry flies when the sedge are hatching.

Late Season - August - September

Daphnia (water flea)

Late season is when the trout will try to pack on as much weight as possible before heading for the spawning grounds and start to feed heavily on daphnia.   they will also pick off terrestrials when they are available, the most common of which at this time is the Daddy Long Legs (Tipula Paludosa).   At this point wet fly fishing will come back into it's own for targeting Daphnia feeders and of course dry flies to imitate the terrestrials are always worth a go.

For information on representative flies for the above naturals please click here.