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Artificial Fly (Hook Size) Insect	Dates Times
Little Brown Stone (#20) Taeniopteryx fasciata	Late March - Mid-April 1300 - 1600 hrs
Blue Winged Olive (#18/#20) Baetis vagans	Mid-March - Mid-May 1100 - 1400 hrs
Early Black Stone (#18/#20) Chimmarra	Late March - Early May Early and Mid-Afternoon
Little Blue Dunn OR Dark Blue Quill (#18/#20) Paraleptophlebia adoptiva	Mid-April - Mid-May Early and Mid-Afternoon
Quill Gordon (#12/#14) Epeorus Pleuralis	Mid-April - Mid-May Afternoon
Hendrickson / Red Quill* (#12/#14) Ephemerella subvaria	Late April - Mid-May Afternoon
Caddis OR Shad Fly (#14/#16) Brachycentrus	Mid-May - Late May Mid-Morning
March Brown (#10/#12) Stenonema vicarium	Mid-May - Mid-June Late Morning and Afternoon
Gray Fox (#12/#14) Stenonema fuscum	Late May - Late June Afternoon
Sulfur Dun (#18/#20) Ephemerella dorothea	Late May - Early July Afternoon and Evening
Green Drake OR Coffin Fly (#10/#12) Ephemera guttulata	Early June - Mid-June Afternoon and Evening
Dun Variant OR Coachman (#10/#12) Isonychia bicolor	Early June - Early September Afternoon and Evening
Pink Hendrickson OR Sulfur Dun (#16) Epeorus vitreus	Early June - Early July Evening
Blue Winged Olive (#14) Ephernerella cornuta / E. attenuata	June Mid-Morning and Noon
Light Cahill (#14) Stenonema canadense / S. ithaca	Mid-June - Mid-August Afternoon and Evening
Cream Variant OR Yellow Drake (#8/#10) Potomanthus distinctus	Late June - Mid-August Evening
Caenis OR Trico (#24/#26) Tricorythodes species	Late June - Mid-October Early Morning
Blue Winged Olive (#22/#24) Pseudocloeon carolina / P. dubium	Mid-May - Late October Afternoon and Evening
Blue Winged Olive (#20/#22) Ephemerella lata	Mid-July - Early October Evening

*The Hendrickson and Red Quill are female and male of the same species.

"Match The Hatch"

Emergence Schedule For Hatching Insects In The Mid-Hudson Region