The Large Dark Olives generally hatch out in spring March – April. It has a darker body than the later hatching Olives. The most common and abundant of all the olive species. The nymph is an agile darter, lives among the vegetation of weedy rivers with a good flow, and swims to the surface in open water to hatch.
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Large Dark Olive
Hook Size: 12
Season: April to May
Natural Fly: Olive (Baetis Rhodani)
Where: Pools and catchment areas
Tips: Use this fishing fly as a single fly on a floating line after treating the hackle with floatant. Look for a nice lengthy run or pool below a long bumpy riffle. The hatch typically happens around mid-day, so skip lunch to get the most out of these flies.