Knowing what flies to use when is one of the keys to successful fly fishing. Thankfully, nature is a little predictable in this area. Through our extensive network of contacts and friends, we’ve collected an encyclopedic knowledge of fly hatching information. The pages that follow provide detailed fly hatch charts for each region of the country.
Fly hatch charts can help you pick out the appropriate flies for an upcoming fly fishing trip. However, they should never be taken as a guarantee of success but rather as a general guide to expected aquatic insect activity.
If there are any locations not included in this list, please feel free to let us know using the contact page and we’ll look into adding it.
| River | When | Fly Type |
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| Avoca | June – Aug | Large Dark Olive Grey Sedge |
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| Boyne | May – June | Damsel Nymph Hare’s Ear Pheasant Tail Large Dark Olive |
| August | Iron Blue Dun Grey Sedge |
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| Castletown | April – May | March Brown Hare’s Ear Pheasant Tail |
| July – Sept | Black Butcher Bloody Butcher Grey Sedge |
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| Dee | April – May | Large Dark Olive Blue Winged Olive Black Gnat Hare’s Ear Pheasant Tail |
| May – July | Black Butcher Bloody Butcher Connemara Black Watson’s Fancy Grey Sedge |
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| Dodder | July – Sept | Large Dark Olive Sooty Olive Claret Dun Grey Sedge |
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| Fane | April – June | Large Dark Olive Iron Blue Dun Damsel Nymph Grey Sedge Black Gnat |
| July – Aug | Black Butcher Bloody Butcher Grey Sedge |
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| Glyde | May – June | Hare’s Ear Pheasant Tail Damsel Nymph |
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| Liffey | May | Grey Sedge Small Brown Sedge |
| September | Yellow Evening Dun Blue Winged Olive |
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| Slaney | June – Aug | Bibio Black Butcher Sooty Olive |
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| Vartry | August | Bibio Black Pennell |
| Lake | When | Fly Type |
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| Lough Lene | April – Sept | Hare’s Ear Murrough |
* Hatch charts are indicative of past experience and are not meant as a guarantee of future success.
