Hendrickson Mayflies are one of the larger, early season emergers in Ontario. Beginning early to midmay and lasting until June, these flies provide some of the first surface action of the season in many areas. Flies should be tied in sizes that reflect natural insect sizes in the area you intend to fish. The hendrickson dun differs from the spinner in that it tends to be a light grey or tan colour, where the spinner is usually a mahogany or burgundy colour. Hatches usually occur mid day when the weather is rather warm and sunny. Ingredients Hook dry fly size 12 Thread uni 8/o brown Tail Grizzly dry fly hackle fibres Body Tan dry fly dub Wing white elk hair
Hard to see, but this was a massive hendrickson mayfly mating dance early in June of 2008. Mayflies hatch from the stream at certain times of the year and sometimes hatches overlap making it difficult for the fly fisher to decipher which fly to use. After a period of time, the mayflies that hatched enter a different phase of life. They congregate above the stream as a cloud of madness in a mating frenzy. Eventually you have the event that fly fishers wait for….the may fly spinnerfall.