Fly Hatches on Yellow Breeches Creek
As on most of the limestone streams fly hatches have diminished greatly over the last 30 years on
the Breeches. At one time the Breeches had a pretty good Hendrickson hatch (Ephemerella
subvaria). In the last couple of years this hatch has picked up somewhat on certain sections of the
stream. The stream also enjoys scattered hatches of the Spotted Sedge (Hydrospsyche sp.) at various
times of the year. You also find a variety of Cahills (Stenonema sp. and Stenacron sp.) as well
as the Blue Winged Olives (Baetis tricaudatus Dodds) which emerges throughout the year.
You find the Yellow Brown Stone (Acroneuria sp.) and the mayfly, the White Gloved
Howdy (Isonychia bicolor). Lots of midge larva
(Chironomids) and scuds (Gammarus sp.) Of course, the big late season hatch is Ephron
leukon, or the White Fly. Want to know what the nymphs look like. Well try this emerging
nymph that I captured on a slide and tie something similar.
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© 2009 E. P. Macri Jr.