Hatch Chart

Scientific Name Common Name Size Mar Apr May Jun Jul Aug Sep Oct
Taeniopteryx navalis Black Stonefly 18-14 1 ---- 15 . . . . .
Strophopteryx fasciata Brown Stonefly 18-16 1 ---- 15 . . . . .
Epeorus pleuralis Quill Gordon 16-12 1 ---- 15 . . . . .
Apatania nigra Smokey Wing Sedge 22-20 1 ---- 15 . . . . .
Baetis tricaudatus Blue Wing Olive 20-18 15 ---- 15 . . . . .
Ephemerella subvaria Hendrickson 16-12 30 ---- 30 . . . . .
Pteronarcys dorsata Giant Black Stonefly 4-2 2xL . 1 30 . . . . .
Isogenoides hansoni Black Stonefly 6 2xL . 5 ---- 1 . . . .
Paraleptophlebia adoptiva Sm. Dark Quill 20-18 . 15 30 . . . . .
Leptophlebia cupida Lg. Dark Quill 14-12 . 15 30 . . . . .
Brachycentrus solomoni Black Caddis 18-16 . 20 15 . . . . .
Brachycentrus appalachia Apple Caddis 18-16 . . 1 15 . . . .
Drunella cornuta Blue Wing Olive 16-14 . . 7 ---- 20 . . .
Stenonema vicarium March Brown 12-6 . . 10 ---- 10 . . .
Acentrella turbida Blue Wing Olive 26-22 . . 10 ---- ---- ---- ---- 15
Ceratopsyche morosa Spotted Sedge 18-16 . . 10 25 . . . .
Ephemerella rotunda Sulphur 14-12 . . 12 30 . . . .
Ephemerella invaria Sulphur 16-14 . . 12 30 . . . .
Psilotreta labida Dark Blue Sedge 16-14 . . 15 10 . . . .
Cheumatopsyche campyla Little Sister Sedge 22-20 . . 15 15 . . . .
Ephemera guttulata Green Drake 10-6 . . 15 15 . . . .
Psilotreta frontalis Black Caddis 16-14 . . 15 20 . . . .
Hydropsyche recurvata Spotted Sedge 16-14 . . 15 25 . . . .
Ephemera simulans Brown Drake 12-10 . . 15 ---- 21 . . .
Ceratopsyche sparna Spotted Sedge 18-16 . . 15 ---- ---- ---- 20 .
Ceratopsyche slossonae Spotted Sedge 18-16 . . 15 ---- ---- ---- 30 .
Ephemerella dorothea Sulphur 20-18 . . 20 ---- 30 . . .
Ceratopsyche bronta Spotted Sedge 18-16 . . 20 ---- ---- ---- 30 .
Acroneuria lycorias Golden Stone 6-4 2xL . . 25 15 . . . .
Lepidostoma togatum Plain Br. Sedge 22-20 . . 25 ---- ---- 30 . .
Isonychia bicolor Slate Drake 12-8 . . 28 ---- ---- ---- ---- 30
Attenella attenuata Blue Wing Olive 20-18 . . . 1 20 . . .
Paraleptophlebia mollis Sm. Dark Quill 20-18 . . . 1 20 . . .
Mystacides sepulchralis Black Dancer 20-18 . . . 1 ---- ---- 20 .
Stenacron heterotarsale Cahill 16-12 . . . 1 ---- ---- 30 .
Epeorus vitreus Pale Eve. Dun 16-12 . . . 1 ---- ---- ---- 30
Rhyacophila species Green Sedge 16-14 . . . 10 ---- 30 . .
Stenonema ithaca Light Cahill 14-10 . . . 10 ---- 15 . .
Stenacron canadense Light Cahill 14-12 . . . 10 ---- 30 . .
Ephemerella needhami Blue Wing Olive 20-16 . . . 10 25 . . .
Sarratella deficiens Blue Wing Olive 24-22 . . . 10 ---- ---- 30 .
Ephemera varia Yellow Drake 8-6 . . . 12 28 . . .
Anthopotamus distinctus Yellow Drake 10-8 . . . 15 ---- 25 . .
Drunella cornutella Blue Wing Olive 18-16 . . . 15 ---- 15 . .
Timpanoga simplex Blue Wing Olive 22-20 . . . 15 ---- 20 . .
Paraleptophlebia debilus Sm. Dark Quill 20-18 . . . . 1 ---- ---- 20
Tricorythodes species Trico 26-24 . . . . 1 ---- ---- 31
Serratella serratoides Little Tan Dun 22-20 . . . . 10 ---- 15 .
Brachycercus lacustris Black and Gray 22-20 . . . . 20 ---- 10 .
Leucrocuta hebe Sulphur 20-18 . . . . . 1 ---- 5
Ephoron leukon White Fly 10-8 . . . . . 10 30 .
Neophylax oligius Autumn Sedge 18-16 . . . . . . 15 31