Common name Genus / species Lava type Emergence Date Prefferd larva habitat Larva size Adult size Emergence in Larva patterns Pupa Pattern Adult Pattern
Spotted Sedge Hydropsychidae (Hydropsyche) Free living early-summer Running water environments with oxygenated currents . 12 x14 Runs and riffles olive brown larva (size 12-14-16) Brown and yellow deep sparkle pupa Brown and Yellow Dancing Caddis
Little Sister Sedge Hydropsychidae (Cheumtopsyche) Free living early-summer Running water environments with oxygenated currents 8mm 10x14 Runs and riffles olive brown larva (size 12-14-16) Brown and brite green deep emergent sparkle pupa  Brown and Green Dancing Caddis
Green Sedge Rhyacophiloidea (rhyacophila) Free-living April - June Running water environments with oxygenated currents up to 18mm 10 x12 current-swept surfaces cool rapidly running water Bright Green Caddis Larva size 8 - 16 Brown and brite green deep emergent sparkle pupa  Brown and Green Dancing Caddis
Glossy Wing sedge Macronema Free living June - July Swifter riffles size 4-6-8 8 x 12 Swifter riffles Olive Brown 4-6-8 Brown and Blue Emergent Sparkle Pupa Brown and Blue Dancing Caddis
   
American Grannom Brachycentridae (numerous) Tube-Case Makers April - May Running water environments with oxygenated currents size 10-12-14 8 x 10 Running water environments with oxygenated currents Brown and brite green deep sparkle pupa Grannom wet fly - Emergent Sparkle Pupa Delta-Wing Caddis
Little Tan Short-Horn Sedge Glossosoma Turtle-like cases May - August Cool running waters size 14-16-18 size 14-16 Cool running waters Pink Caddis Larva size 14-16-18 Tan and Pale Green Emergent Sparkle Pupa Tan Pale Green Caddis
Speckled Peter  Helicopsychidae Tube-case Makers May - June Evening Moderate currents size 14-16-18 Moderate currents Dark Cased Caddis Larva Brown and Yellow Emergent Sparkle Pupa Brown and Yellow Dancing Caddis - Lawsonn Spent Partridge
Little Plain Brown Sedge Lepidostoma - (vernalis) Tube case maker June Gentler edges 10 x14 Moderate currents Dark Cased Caddis Larva Brown Deep Sparkle Pupa Emergent Brown Sparkle Pupa / Emergent Brown Sparkle Pupa
Scaly Wing Sedge Leptoceridae (Ceraclea) Tube case maker June - July Under rocks & Thick Vegetation sometimes burrowing 4mm 10 x 16 Still or run water environments Brown Deep Sparkle Pupa Brown Emerger Sparkle Pupa  Brown Emergent Sparkle Pupa Brown Dancing Caddis
White Miller Nectopsyche Tube case maker Full Darkness During mid-summer - June Slow weedy streams size 2 - 4 Light or dark medium cased caddis 6 x 10 Slow weedy streams White Deep Sparkle Pupa White Emergent Sparkle Pupa Parkany Deer Hair Caddis - White dancing Caddia
Black Dancer Mystacides Tube case maker Morning hours Warmer Months of summer Slow moving streams Size 4-10 Light Cased Caddis Larva 8 x 10 Morning hours Warmer Months of summer Black Deep Sparkle Pupa - Light Cased Caddis Black Emergent Sparkle Pupa Black Dancing Caddis
Great Brown Autum Sedge Pycnopsyche Tube case maker Late summer evenings Back waters 22mm 4 x 10 Back waters Strawman Nymph Ginger Deep Sparkle Pupa / Ginger Emergent Sparkle Pupa Light Bucktail Caddis \ Ginger Diving Caddis
Giant Cream Wing Sedge Hydatophylax Tube case maker Mid-summer to Fall Back waters 28mm 4x long Back waters Ginger Deep Sparkle Pupa / Ginger Emergent Sparkle Pupa Light Bucktail Caddis \ Ginger Diving Caddis
Dot Wing Winter Sedge Frenesia Tube case maker Late-autum - Early-winter Crawl freely over the bottom 4x long The dark Pupa crawl or swim to the shallows Medium Cased Caddis BrownrDeep Sparkle Pupa / Brown Emergent Sparkle Pupa Brown Dancing Caddis
Chocolate and Cream Sedge Platycentropus (radiatus) Tube case maker in a crisscross fashion At night Mid-summer Crawl freely over the bottom in back waters 4x long back waters Strawman Nymph / Brown and Yellow deep S\arkles Pupa Brown and Yellow Emergent Sparkle Pupa Dark Bucktail Caddis / Brown and yellow Dancing Nymph
Snow Sedge Psychoglypha Tube case maker Fall & Winter Back water regions 8mm 4x long back waters Dark Cased Caddis Brown Deep Sparkle Emerger Pupa Dark Bucktail Caddis / Brown Dancing Caddis
Early Box Wing Sedge Ironoquia Tube case maker Late summer early fall 10mm 10 x 12 open water Light Cased Caddis Brown Deep Sparkle Emerger Pupa Brown Dancing Caddis
Little Gray Sedge Goera Tube case maker on large rocks in riffles 10 x 12 Riffles
Early Smoky Wing Sedge Apatania (incerta) Tube case maker April - May Pools 8.5mm 10 x 12 Pools Medium Cased Caddis Gray Deep Sparkle Pupa / Gray Emergent Sparkle Pupa Gray Dancing Caddis
Autumn Mottled Sedge Neophylax Tube case maker Fall on large rocks in riffles Size 8 10 x 14 Faster riffles Light Cased Caddis Brown and Yellow Emergent Sparkle Pupa / Brown and Yellow Emergent pupa Dark Bucktail Caddis / Brown and Yellow Dancing Caddis
Dark Blue Sedge Psilotreta Tube case maker May burrow into silt or gravel in Riffles Size 8 10 x 12 Riffles in the evenings Light Cased Caddis Gray and Green Emergent Sparkle Pupa / Gray and Green Emergent pupa Gray and Green Dancing Caddis
Little Black Sedge Philopotamidae (chimarra - aterrima) Net Spinner May Under rocks 14-18 12 x 16 Pupa crawl or swim to banks or emerge on surface around noon Yellow Caddis Lava 14-18 Black Deep Sparkle Pupa / Black Emergent Pupa  Thompson Foam Caddis / Black Dancing caddis
Medium Evening Sedge Dolophilodes Dolophilodes Feburary - August Feburary - August under rocks 14 x 16 18 Pupa crawl or swim to banks or emerge on surface around noon Yellow Caddis Lava 14-18 Brown Deep Sparkle Pupa / Brown EmergentSparkle Pupa
  Mayfly Hatch Chart    
Common name Genus / species Nymph type Emergence Prefferd nymph habitat Tails Nymph Tied Nymph Most active  Recommended Nymph Patterns Emerger Pattern Dun Pattern      
Blue Winged Olive - Dark Blue Quill Baetis  (vagans) Swimmer March - April Under water vegetation 2 or 3 Streamlined Warmest part of the day Blue winged olive - Pheasant tail -  Baetis deerhair emerger #14-16-18 parachute Blue winged olive - Adams - Compara dun Dark Blue Quill #14-16-18  
Blue Winged Olive - Dark Blue Quill Pseudocloeon  (carolina) Swimmer May -August - October Gravel runs and riffles 2 Streamlined Dusk Blue winged olive - Pheasant tail -  Baetis deerhair emerger #18-20-22 parachute Blue-winged Olive #20-22
Blue Winged Olive - Dark Blue Quill Baetidae  (cloeon) Swimmer Summer Gravel runs and riffles 3 Streamlined Dusk
Leadwing Coachman -Slate Drake - Dun Variant - Mahogany Dun Siphlonuridae Isonychia (bicolor) Swimmer June - July    (in quieter sections or behnd obstructions) Gravel runs and riffles 3 Streamlined Afternoon or Evening Compara Nymph - Zug Bug Lead Wing Coachman Wet Dun Variant # 10 - #8
Leadwing Coachman -Slate Drake - Dun Variant - Mahogany Dun Siphlonuridae Isonychia  - (sadleri) Swimmer June - July    (in quieter sections or behnd obstructions) Gravel runs and riffles 3 Streamlined Afternoon or Evening Compara Nymph - Zug Bug Lead Wing Coachman Wet Dun Variant #10
   
 Hendrickson -  Red Quill Ephemerella (subvaria) Crawlers April - May water temp. 50-55 Stream bottoms with riffles, smooth runs slow silty stretches and thick vegetation 3 Robust Afternoon Hares ear - pheasant tail - Dark Hendrickson Dark Cahill wet - Floating nymph Thorax Hendrickson, Hendrickson, Red Quill  Light Cahill  Compara dun #10 #12  
Sulphur - Pale Evening Dun Ephemerella invaria Crawlers May - Early July Medium-to-Fast currents 3 Robust Morning to early evening Hares ear - pheasant tail - Dark Hendrickson Little Maryatt Wet Deerhair emerger Sulphur, Pale Evening Dun
Sulphur - Pale Evening Dun Ephemerella dorothea Crawlers june - July Medium-to-Fast currents 3 Robust Morning to early evening Hares ear - pheasant tail - Dark Hendrickson Little Maryatt Wet Deerhair emerger Sulphur, Pale Evening Dun
Blue-winged olive Ephemerella  cornuta subgenus Drunella Crawlers May - June Runs, Riffles and Eddies of pocket-water 3 Wide & Flat Morning to mid-day Blue-winged olive, Hares ear, Little Maryatt Wet Deerhair Emerger, Blue-winged olive wet Blue-winged olive #14 #16
Blue-winged olive -  Tiny Dun Variant Ephemerella subgenus (attenella) Crawlers June - July Slow pools and Back waters 3 Wide & Flat Morning to mid-day Blue-winged olive, Hares ear, Little Maryatt Wet Deerhair Emerger, Blue-winged olive wet Blue-winged olive
Blue Quill,Dark Blue Quill, Blue Dun, Iron Blue Dun, Slate -winged Mahogany Dun Paraleptophlebia (adoptiva) Crawlers April - May water temp. 50's Pools, side currents and moderate Gravelly runs 3 Slender and Streamlined Mid-morning to early afternoon Hares ear - Pheasant tail Blue Quill,Dark Blue Quill, Blue Dun, Iron Blue Dun, Slate -winged Mahogany Dun  #18 #16
Trico's - Caenie Hatch - Tiny White-winged Black - Black Caenis Tricorythodes Crawlers Late July - October waters temps. 52-56 Sand and gravel bottoms - Mar-rich silt - Subaquatic weed beds 3 long thin Morrning pheasant tial size 20 - 26 wet size 28-26 dark body light wing #24 #26
   
March Brown - Gray Fox - Ginger Quill Heptageniidae (stenonema vicarium) Clingers May - June Rapids & riffles 3 Wide flat Throughout the day Quill Gordon - March Brown - Hares Ear Hares ear wet - Pheasant tail soft hackle - Quill Gordon wet Compara dun - Quill Gordon - March brown #8 #10  
March Brown Ginger Quill Stenonema (rubrum) Clingers May - June Rapids & riffles 3 Wide flat Throughout the day Quill Gordon - March Brown - Hares Ear Hares ear wet - Pheasant tail soft hackle - Quill Gordon wet Compara dun - Quill Gordon - March brown #8-10-12
Light Cahill - Ginger Quill - Cahill Stenonema ithaca & Stenacron interpunctatum canadense Clingers June - July Riffles and Runs 3 Wide flat Throughout the day #10-12-14
Light Cahill - Ginger Quill - Cahill Stenonema (fuscum) Clingers June - July Riffles and Runs 2 Wide flat Behind Obstructions - Water temp 50's Hares ear  - Quill Gordon  Hares Ear Wet - Quill Gordon Wet Quill Gordon - Iron Dun #10-12-14
Quill Gordon - Iron Dun Epeorus pleuralis Clingers April - May Rapids - Riffles - Swift  Gravelly Runs 2 Wide flat On rocks in fast runs Hares ear  - Quill Gordon  Hares Ear Wet - Quill Gordon Wet Quill Gordon - Iron Dun #10-12-14  
 
Green Dake Hexagenia now Litobrancha recurvata Burrowers June - July Stream bottoms with soft muddy sandy/gravel bottom 3 Streamline Dusk Green Drake Hares ear Green Dake #6-8  
Green Drake - Coffin Fly - Shad fly - Shaddie - May Fly - Green Fly Ephemera guttulata Burrowers May - June Stream bottoms with soft muddy sandy/gravel bottom 3 Streamline Dusk #6-8
Yellow Drake - Yellow Dun - Cream Variant - White Dun Ephemera varia Burrowers June - August Stream bottoms with soft muddy sandy/gravel bottom 3 Streamline Mid-Day #6-8  
   
Golden Drake - Cream Dun - Evening Dun - Cream Variant - Yellow Drake Potamanthus distinctus Crawling - Swimmer June - August Stream bottoms with soft muddy sandy/gravel bottom 3 Streamline Dusk #8-10    
Stonefly    
Brown Stonefly Stonefly (March - April Large Gravel and rubble 4mm - 12mm 2 Typical 9:00am - 12:00 noon Little brown Stone - Early Black Stone wbcf inlet March 20th size 14 & 20 Brown Stonefly mottled wing slite bit of yellow on shoulders on rocks slow water 14-16-20 stone fly
Black Stonefly Stonefly (March - April Large Gravel and rubble 4mm - 12mm 2 Typical 9:00am - 12:00 noon Little brown Stone - Early Black Stone (March 5 Amawalk RT. 6 / Hollowbrook) March 10 Cross river size 14-16-20 / Beverdam March 22 1:00 Black Stonefly mottled wing slite bit of yellow on shoulders on rocks slow water 14-16-20 stone fly