Hi Folks. This fly of the Ephemeroptera family of flies is common in the UK and is quite tolerant of acidic waters which is probably why they are common around me. The adult is best suited to a size 14 standard dry hook but it is the nymph I am looking for help on. I have included a pic of the nymph and am wondering how best to mimic that bottom half. Ostrich herl first idea or trimmed hackle fibres closely palmered up?