Cymdeithas
Pysgota Seiont, Gwyrfai a Llyfni
Seiont, Gwyrfai & Llyfni Angling Society
FLIES FOR LOCAL RIVERS (PRACTICAL)
| Times of the season | Types of flies | Times of the season | Types of flies |
| Early Morning May to End of July | Light Woodcock and Yellow | Taken at Almost Anytime | Red Spinner |
| Mid-day March to June | Dark Snipe and Orange | Evenings-About 9pm. May to August | Yellow Dun |
| Evening May to August | Light Snipe and Yellow | Good on Quiet Water- April to June | Little Iron Blue |
| Early Morning and Evening (Anytime) | Dotterall Hackle, Orange | Good All Round Near Willow Bushes | Alder Fly |
| Evening July and August | Dun Hackle | Good on Deep Waters, Lakes etc. | Grannon Fly |
| When Rise Comes On | Black Gnat & Starling Fly | Good on Quick Shallow Waters | Gravel Bed Fly |
| Good Fly (Anytime) | Hen Pheasant & Black Ant | On Some Waters in Hot Weather | Greenwell's Glory |
| Hot Days | Red Palmer | For Reedy Waters on Hot Days | Francis Fly |
| Good All Year Round | Black Spider | Good on Pools - Early & Late | Coachman |
| Evenings - Hot Weather | Dun Spider | Near Bushes - Evening Best | Govenor |
| Only Useful in July | Coch-y-Bonddu | Evening When Wet | Hawthorn Fly |
| On Dull Days | Grey Partridge | When Rise Comes On - About July | Pale Dun |
| Evenings or Early Mornings - Hot Days | Blue Dun Spider | Good on any Coloured Water | Teal Favourite |
| Wet Weather - March to May | Wrentail | Near Willows in August | Willow Fly |
| Good Fly on Deep Pools | Hare Lug | Hot Summer Evening - Dry Fly | Evening Dun |
| Warm Days - After Flood Best | Blue Wing-Black Hackle | Hot Days, Mid-day June to August | Orange Dun |
| First Rate Fly - March and April | March Brown | Early & Late-Any Weather | Blue Upright |
| Evening Fly - Dull Weather | Blue Dun |