Central Pennsylvania Hatch Guide
Insect |
Approximate Hatch Date |
Recommended |
Streams (See Code Below) |
| Dun/Black Midge | Early Feb-Apr, afternoons |
Black Midge Pupa, #28 Dun/Black Midge, #28 |
FP, SC |
| Dun/Olive Midge | Early Feb, early afternoons |
Dun/Olive Midge, #20-22 | FP, SC |
| Blue-winged Olive, (Baetis vagans & related species |
Late Mar-mid Apr, afternoons; mid May-Early June, evening |
Baetis Nymph, #18 Baetis Emerger, #18 Blue-winged Olive, #18-22 Baetis Spinner, #20 |
SC, EC, CF, KC PC, FC, FC, CR, DB, FF, SR |
| Blue Quill, Little Mahogany Dun, Slate Winged Mahagony (Paraeptophlebia adopitiva) |
Mid Apr, late mornings to early afternoons |
Paraleptophlebia Nymph and Emerger, #16; Blue Quill, #16-18; Paraleptophlebia Spinner, #18 |
SC, FC, CR, SR, EC, KC, CF, DB, FF, BEC, LJR, PIC |
| Mottled Brown/Black Caddis (Grannom) (Brachycentrus) |
Mid Apr. mornings | Hare's Ear or Leadwing Coachmen Wet, #12-14; Mottled Brown/Black Elk Hair Caddis, #14-16 |
PC, FC, |
| Quill Gordon (Epeorus pleuralis) |
Mid-lat Apr, early afternoon |
Hare's Ear Wet, #12-14; Quill Gordon, #12-14 |
KC, CF, DB, FF, SR, PIC, BEC, CR, FC, |
| Gray Midge (Diptera) |
Mid Apr, late afternoon to dusk |
Gray Midge Pupa, #18-20 Gray Midge, #20 |
CF |
| Black Quill (Leptophlebia cupids) |
Late Apr-early May, afternoons |
Black Quill, #10-12 | BEC, FC, PC |
| Cream Caddis (Psilotreta species) |
Late Apr-early May | Cream Elk Hair Caddis, #14 | PIC |
| Hendrickson & Red Quill, (Ephemerella subvaria) |
Late Apr-early May, afternoons |
Dark ephemerells Nymph & Emerger, #14; Light Hendrickson or Hendrickson Cut-Wing, #12-14; Red Quill or Red Quill Cut-Wing, #14; Hendrickson Spinner, #14 |
BEC, PC, BMC, KC, CR, PIC, SR, CF, DB, FC |
| Yellow Cranefly (Antocha saxicola) |
Early May, sporadic until Sept, sporadic throughout day con- centrated in moring |
Dun/Yellow Soft Hackle, #16-18; Lt. Dun/Yellow Delta Caddis, #16-18; Lt. Ginger Fluttering Caddis, #16-18 |
SC, FC, PC, |
| Gray/Light Olive Caddis |
Early May, afternoons |
Gray/Light Olive Caddis, #14 | KC, DB, FF |
| Dark Mottled Brown/ Black Caddis (Chimarra) |
Early-mid May, mornings |
Green Caddis Larvs, #16; Partridge & Green, #14-16; Tan/Olive Elk Hair Caddis, #14-16; Letort Hopper, #16-18; Cowdung Wet, #14-16 |
PC, SC |
| Pale Green Midge | Mid-May, morning | Pale Green Midge, #28 | SC |
| Sulphur Dun, Pale Evening Dun, Light Hendrickson (Ephemerella invaria and rotunda |
Mid-May, late afternoons to dusk |
Ephemerells Nymph & Emerger, #14; Sulphur Cut-wing, #14; Sulphur Spinner, #14 |
SC, PC, FC, KC, LJR, BEC, DB FF |
| Lt. Mottled Brown/ Tan Caddis (Hydropsyche) |
Mid-May throughout summer and fall, late afternoons to dusk |
March Brown Spider, #14-18 March Brown Wet, #14-18 Tan Elk Hair Caddis, #14-18 |
SC, PC |
| March Brown (Stenonema vicarium) |
Mid-late May, sporadically throughout the day |
Stenonema Nymph & Emerger, #12; March Brown Wet, #10-12; March Brown, #10-12; March Brown (Great Red) Spinner, #12 |
PC, EC, FC, KC, CF, DB, FF, CR SR |
| Gray Fox, Ginger Quill (Stenonema fuscum) |
Mid-late May, sporadically throughtout the day |
Stenonema Nymph & Emerger, #14; Gray Fox, #12-14; Ginger Quill, #12-14; Stenonema Spinner, #12 |
BEC, PC, KC |
| Sulphur, Pale Sulphur Dun, Pale Watery, Pale Evening Dun, Lady Beaverkill (Ephemerella dorothea) |
Late May-mid June, late afternoons to dusk |
Emphemerells Nymph & Emerger #16; Sulphur Cut-wing, #16; Sulphur Spinner, #16 |
PC, BEC, KC, CF, DB, FF, CR, SR, PIC, FC |
| Green Drake, Shadfly, Mayfly, Coffin Fly (Ephomera guttulats) |
Late May-early June usually late afternoon and at dusk, but can occur sporadically throught the day |
Green Drake Nymph, #10-4XL; Green Drake Wet, #10-4XL; Shadfly, #12-4XL; Coffin Fly, #12-4Xl; Gray Fox Variant, #14; White Wulff Variant, #12-4XL |
PC, FC, KC, DB, EC, FF, CR, CF, SR, PIC |
| Dun Caddis (Psilotreta) |
Late May-early June late afternoons to dusk, emerges same time as Green Drake |
Dun Fluttering or Elk Hair Caddis, #14 |
KC, PIC, PC DB, FF |
| Light Cahill (Stenacron canadense, Stenacron interpunctatum, Stenonema ithaca, and othe species) |
Late May-June sporadically throughout summer; usually at dusk; can occur sporadically throughout the day |
Stenonema Nymph & Emerger, #14: Light Cahill Ginger (orangish yellow or pale yellow body, ginger hackle and tails): Cream Spinner, #14 |
SC, PC, FC, CF, LJR, BEC, PIC |
| Brown Drake (Ephemera simulans) |
Late May-early June dusk |
Brown Drake, #12-2XL | PIC, CF, KC DB, FF |
| Coachman, Leadwing Coachman, Mahogany Dun, Slate-winged Mahogany, White- gloved Howdy, Red Quill, Slate Drake (Isonychia bicolor, sadleri, harperi) |
Early June and throughout summer into Sept, usually at dusk, but can occur sporadically throughout the day |
Isonychia Nymph, #10-14-3XL Dun Variant, #14; Slate Drake, #10-12 Reddish Brown Spinner, #10-12 |
LJR, PC, FC, CF, BMC, BEC, KC, CR, SR, DB, FF |
| Slate-winged Olive (Ephemerells attenuata & cornuta |
Early-late June, sporadically throughout the day, but concentrated in late morning |
Ephemerella Nymph & Emerger, #14-16; Blue-winged Olive Wet, #14-16; Blue-winged Olive, #14-16 |
SC, PC, FC, KC, CR, SR, PIC, DB, FF |
| Yellow Drake (Ephemera varia) |
Mid-June-July, dusk |
Green Drake Nymph, #10-2XL Green Drake Wet, #10-2XL Yellow Drake, #12-2XL Cream Variant, #14 |
BMR, BEC, LJR, PIC, FC |
| Blue-winged Olives (Varinus Baetis and Pseudocloeon species) |
Sporadically throughout summer fall, usually late afternoons and at dusk |
Blue-winged Olive Nymph & Emerger, #18-24; Blue-winged Olive, #18-24; Baetis Spinner, #18-24 |
SC, FC, PC, KC, LJR, DB, FF |
| Ginger Midge | Early July, dusk | Ginger Midge, #28 | SC, FC |
| Light Cahill (stenonema pulchellum) |
July through Sept. or Oct, late afternoons to dusk |
Stenonema Nymph, #14; Cream Cahill, #14 Cream Spinner, #14 |
SC, LJR |
| Caenis, Tric, Trico, White-winged Black (Tricorythodes stygiatus) |
Mid-July to first frost, mornings |
Trico Nymph & Emerger, #22; Trico Dun, #24; Trico male and Female Spinners, #24 |
SC, FC, EC, KC, CF, SR, DB, FF, |
| Flying Black Ants | Mid-August | Spent-wing Black Ant, #24-28 | FB, SC |
| White Mayfly (Ephoron leukon) |
Mid-August to mid- September |
White Mayfly Nymph, #14-2XL; Cream Cahill, #14 |
|
| White Midge | Mid-August | White Midge Pupa, #28; White Midge, #28 |
FP, SC, FC |
Stream Code
| FP - Fisherman's Paradise | SC - Spring Creek | LJR - Little Juniata River |
| EC - Elk Creek | BMC - Black Moshannon Creek | PIC - Pine Creek |
| SMR - Six Mile Run | FC - Fishing Creek | CR - Cedar Run |
| BEC - Bald Eagle Creek | SR - Slate Run | KC - Kettle Creek |
| PC - Penn's Creek | LP - Little Pine Creek | FF - First Fork of Sinnemahoning Creek |
| CF - Cross Fork of Kettle Creek | DB - Driftwood Branch of Sinnemahoning Creek |
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