Missouri Fly Hatch Chart

MISSOURI FLY HATCH CHART
(Montauk State Park - Current River, Missouri)

March Thru May

Early Season Mayfly Hatch Chart

Approximate Hatch Dates	Common Name	Scientific Name	Time of Day	Hook Size	Imitation's
Mid Mar to Mid April	Little Blue Winged Olive	Baetis Species	Early Afternoon	16-20	Blue Winged Olive Emerger and Dry
Mid April to Early May	Blue Quill	Paraleptophlebia adoptiva	Early Afternoon	16-18	Blue Quill Dry Paraleptophlebia Nymph
Mid April to Mid May	Quill Gordon	Epeorus Pleuralis	Early Afternoon	12-14	Hare's Ear Wet Fly, G.R. Hare's Ear Nymph, Quill Gordon Dry
Mid April to Mid May	Hendrickson (Red Quill)	Emphemerella subvaria	Mid Afternoon	12-14	Hendrickson Nymph, Light Hendrickson Dry, Red Quill Dry

Early Season Caddis Fly Hatch Chart

Approximate Hatch Dates	Common Name	Scientific Name	Time of Day	Hook Size	Imitation's
Mid April to Mid May	Little Black Caddis	Chimarra atterima	Early Afternoon	18	Dark Brown/Black Elk hair Caddis
Mid April	Grannom Caddis	Brachycentrus numerosa	Late Morning - Early Afternoon	14-16	Leadwing Coachman Wet, dark Brown Elk Hair Caddis
Late April to Early May	Cream Caddis	Psilotreta species	Late Morning - Afternoon	14	Cream Elk Hair Caddis, Cream Emergent Pupa
Early May	Green Caddis	Rhyacophila Species	Late Morning - Afternoon	14	Green Caddis Larva and Pupa, Henryville Special Dry

Early Season Stonefly Hatch Chart

Approximate Hatch Dates	Common Name	Scientific Name	Time of Day	Hook Size	Imitation's
Early March	Little Black Stonefly	Capnia Vernalis	Mid-day	16	Black body-dun hackle and down wings dry. Early Black Stonefly Nymph
April	Early Brown Stonefly	Taeniopteryx Fasciata	Afternoon	10-14	Early Brown Stone Wet, Early Brown Stone Nymph

May Thru June

Mid Season Mayfly Hatch Chart

Approximate Hatch Dates	Common Name	Scientific Name	Time of Day	Hook Size	Imitations
Mid May to Early June	March Brown	Stenonema Vicarium	Sporadic Throughout the day	10-12	March Brown Dry, Stenonema Nymph, Spinner
Mid May to Early June	Gray Fox	Stenonema Fuscum	Sporadic Throughout the day	12-14	Gray Fox Dry, Stenonema Nymph, Spinner
Late May to Early June	Green Drake Coffin Fly(Spinner)	Ephemera Guttulata	Throughout Afternoon and Evening	8-10	Green Drake Dun, Green Drake Nymph, Coffin Fly, White Wulff
Late May to Mid June	Little Maryatt	Ephemerella Invaria	Evening	14-16	EphemerellaNymph
Late May to Mid June	Pale Sulfur Dun	Ephemerella Rotunda	Evening	14-16	Sulfur Dun & Spinner
Late May to Mid June	Pale Evening Dun	Ephemerella Dorthea	Evening	14-16	Pale Evening Dun & Spinner
Late May to Late June	Light Cahill	Stenonema -ithica -canadense	Evening	12-16	Light Cahill Nymph, Emerger, Dun & Spinner
Early June to Late June	Blue Winged Olive	Ephemerella - cornuta - attenuata	Late Morning to Mid-day	12-16	Blue Winged Olive Nymph, Wet, & Dun

Mid Season Caddis Fly Hatch Chart

Approximate Hatch Dates	Common Name	Scientific Name	Time of Day	Hook Size	Immitations
Late May, June	Tan Caddis	Hydropsyche Species	Afternoon Evening	14-18	March Brown Spider, Tan Elk Hair Caddis
Late May, June	Dun Caddis	Psilotreta Frontalis	Midday	14	Elk Hair Caddis, Tent Wing Caddis

Mid Season Stonefly Hatch Chart

Approximate Hatch Dates	Common Name	Scientific Name	Time of Day	Hook Size	Immitations
June	Little Yellow Sally	Alloperla Species	Afternoon	10-14	Michigan Stone Dry
June	Golden Stone	Phasganophora Capitata	Afternoon Evening	10	Stonefly Creeper
May, June	Giant Black Stonefly	Pteronarcys Dorsata	Morning, Afternoon	4-8	Kauffman's Nymph, Bitch Creek Nymph, Montana Nymph
May, June	Giant Spined Stonefly	Allonarcys Biloba	Evening	4-8	Kauffman's Nymph, Bitch Creek Nymph, Montana Nymph

June Thru October

Late Season Mayfly Hatch Chart

Approximate Hatch Dates	Common Name	Scientific Name	Time of Day	Hook Size	Imitations
Mid June through Mid October	Slate Winged Mahogany	Isonychia - bicolor - sadleri - harperi	Sporadic Throughout the Day	10-12	Leadwing Coachman, Isonychia Nymph, Dun Variant, Rusty Spinner
Mid June, Mid July	Blue Winged Olive	Ephemerella - attenuata - cornuta	Morning, Midday	14-16	Ephemerella Nymph, Emerger & Dun
Late June and July	Golden Drake	Potamanthus - distinctus	Evening	12	Cream Variant
July thru September	Trico	Tricorythodes Species	Morning	22-24	Trico Dun & Spinner
July thru October	Tiny Blue Winged Olive	Baetis and Pseudocloeon Species	Sporadic Afternoon	18-24	Blue Winged Olive Nymph, Emerger & Dun

Late Season Caddis Fly Hatch Chart

Approximate Hatch Dates	Common Name	Scientific Name	Time of Day	Hook Size	Immitations
June thru Sept	Tan Caddis	Hydropsyche Species	Sporadic All Day	14-20	Tan Elk Hair Caddis
August thru Oct	Summer Sedge (Autumn Sedge)	Limnephilldas Family	Late Day, Evening	12-18	Woodchuck Caddis, Cased Caddis

Late Season Stonefly Hatch Chart

Approximate Hatch Dates	Common Name	Scientific Name	Time of Day	Hook Size	Immitations
Mid June, July	Lime Sally	Alloperia Species Choloroperia Species	Afternoon, Evening	16-18	Michigan Stone, little Green Hairwing
Mid June, July	Yellow Sally	Isoperia Species	Afternoon, Evening	14	Little Yellow Hairwing
Mid June, July	Great Brown Stonefly	Acroneuris - lycoris	Evening	8-12	Stimulator, Ted's Stonefly
June thru August	Big Golden Stonefly	Paragentina Species	Evening	8	Golden Stone Nymph, Stimulator

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