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Hatch Chart

Peak Flies - April

Hatch Chart - Yearly

  •  Peak
  •  Major
  •  Minor
  •  Dormant
Fly Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
12greydrakespinner.jpg (Siphlonurus occidentalis)

Gray Drake
(Siphlonurus occidentalis)

            
Pink_Albert.jpg (Epeorus Alberte)

Pink Albert
(Epeorus Alberte)

            
17mahoganydunfemale.jpg (Paraleptophlebia bicornuta)

Mahogany Dun
(Paraleptophlebia bicornuta)

            
16tricofemalespinner.jpg (Trycorythodes minutus)

Trico
(Trycorythodes minutus)

            
15callibaetisfemalespinner.jpg (Callibaetis ferrugineus)

Speckled Spinner
(Callibaetis ferrugineus)

            
14littlesistersedge.jpg (Several genera & species)

Other Caddis Flies
(Several genera & species)

            
13flavdun.jpg (Drunella flavilinea)

Flav
(Drunella flavilinea)

            
11browndrakedun.jpg (Ephemera simulans)

Brown Drake
(Ephemera simulans)

            
10greendrakedun.jpg (Drunella grandis)

Western Green Drake
(Drunella grandis)

            
9spottedsedge.jpg (Hydropsyche)

Spotted Sedge Caddis
(Hydropsyche)

            
8pmdfemaledun.jpg (Ephemerella inermis)

Pale Morning Dun
(Ephemerella inermis)

            
7littleyellowsally.jpg (Isoperla, alloperla)

Small Stoneflies
(Isoperla, alloperla)

            
6goldenstoneflyadult.jpg (Acroneuria, classenia)

Golden Stonefly
(Acroneuria, classenia)

            
5salmonflyadult.jpg (Pteronarcys)

Salmonfly
(Pteronarcys)

            
4americangrannom.jpg (Brachycentrus)

Grannom Caddis
(Brachycentrus)

            
3westernmarchbrowndun.jpg (Rhithrogena morrisoni)

Western March Brown
(Rhithrogena morrisoni)

            
2baetisdun.jpg (Baetis several species)

Blue Winged Olive
(Baetis several species)

            
1midgeadultmale.jpg (Chironomidae)

Midge
(Chironomidae)