Missouri Hatch Chart

Here is the Missouri hatch chart for our State. Many of these hatches are happening at the same time in other states as well. The imitations suggested are just that – suggestions. Flies that you have that may be similar would work also. Remember when the specific aquatic insect (caddis, mayfly, or stonefly) is hatching their nymphal and larva stage are present as well. Midges are year round so don’t forget to fish with them.

March Thru May

Early Season Mayfly Hatch Chart

Approximate Hatch Dates	Common Name	Time of Day	Hook Size	Imitation’s
Mid Mar to Mid April	Little Blue Winged Olive	Early Afternoon	16-20	Blue Winged Olive Emerger and Dry
Mid April to Early May	Blue Quill	Early Afternoon	16-18	Blue Quill Dry Paraleptophlebia Nymph
Mid April to Mid May	Quill Gordon	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)	Mid Afternoon	12-14	Hendrickson Nymph, Light Hendrickson Dry, Red Quill Dry

Early Season Caddis Fly Hatch Chart

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

Early Season Stonefly Hatch Chart

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

May Thru June

Mid Season Mayfly Hatch Chart

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

Mid Season Caddis Fly Hatch Chart

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

Mid Season Stonefly Hatch Chart

Approximate Hatch Dates	Common Name	Time of Day	Hook Size	Imitations
June	Little Yellow Sally	Afternoon	10-14	Michigan Stone Dry
June	Golden Stone	Afternoon Evening	10	Stonefly Creeper
May, June	Giant Black Stonefly	Morning, Afternoon	4-8	Kauffman’s Nymph, Bitch Creek Nymph, Montana Nymph
May, June	Giant Spined Stonefly	Evening	4-8	Kauffman’s Nymph, Bitch Creek Nymph, Montana Nymph

June Thru October

Late Season Mayfly Hatch Chart

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

Late Season Caddis Fly Hatch Chart

Approximate Hatch Dates

Common Name

Time of Day

Hook Size

Imitations

June thru Sept

Tan Caddis

Sporadic All Day

14-20

Tan Elk Hair Caddis

August thru Oct

Summer Sedge

(Autumn Sedge)

Late Day, Evening

12-18

Woodchuck Caddis, Cased Caddis

Late Season Stonefly Hatch Chart

Approximate Hatch Dates	Common Name	Time of Day	Hook Size	Imitations
Mid June, July	Lime Sally	Afternoon, Evening	16-18	Michigan Stone, little Green Hairwing
Mid June, July	Yellow Sally	Afternoon, Evening	14	Little Yellow Hairwing
Mid June, July	Great Brown Stonefly	Evening	8-12	Stimulator, Ted’s Stonefly
June thru August	Big Golden Stonefly	Evening	8	Golden Stone Nymph, Stimulator