Southern Oregon Hatch Chart

Mayflies

Jan. 

Feb. 

Mar.

Apr.

May.

Jun.

Jul.

Aug.

Sept.

Oct.

Nov.

Dec.

Blue-Winged Olive 

Baetis cingulatus

X

X

X

X

X

X

Brown Dun

Alemetus

X

X

X

X

X

X

X

Dark Red Quill

Cinygmula

X

X

Green Drake 

Drunella grandis

X

X

Gray Drake

Siphlonurus

X

X

X

X

X

X

X

Hexagenia

Hexagenia limbata

X

Mahogany Dun

Paraleptoplebia

X

X

X

X

X

March Brown

Rhithrogena morrisoni

X

X

X

X

Pale Morning Dun

Ephemerella

X

X

X

X

Pale Evening Dun

Heptagenia

X

X

X

X

X

Slate Drake

Isonychia

X

Slate-Wing Olive

Drunella coloradensis

X

Trico

Tricorythodes

X

X

Yellow Quill

Epeorus

X

X

Caddis

Jan. 

Feb. 

Mar.

Apr.

May.

Jun.

Jul.

Aug.

Sept.

Oct.

Nov.

Dec.

Grannom

Brachycentrus

X

X

X

X

X

Green Caddis

Rhyacophila

X

X

X

X

X

October Caddis

Dicosmoecus

X

X

Saddle-Case Caddis

Glossosoma

X

X

X

X

X

X

X

Spotted Caddis

Hydropsyche

X

X

X

X

Weedy Water Caddis

Amiocentrus

X

X

X

Stoneflies

Jan. 

Feb. 

Mar.

Apr.

May.

Jun.

Jul.

Aug.

Sept.

Oct.

Nov.

Dec.

Cranefly

Tipulidae

X

X

X

X

X

Golden Stonefly

Hesperoperla

X

Little Brown Stonefly

Nemouridae

X

X

X

X

Salmon Fly 

Pteronarcys californica

X

X

Spring Stonefly

Skwala

X

X

Yellow Sally

Perlodidae

X

X

X

Terestrails

Jan. 

Feb. 

Mar.

Apr.

May.

Jun.

Jul.

Aug.

Sept.

Oct.

Nov.

Dec.

Ant

Hymenoptera

X

X

X

Aquatic Beetle

Coleoptera

X

X

X

X

X

X

X

X

X

Beetle

Coleoptera

Hopper

Orthoptera

X

X

X

X

Moth

Lepidoptera

X

X

Other

Jan. 

Feb. 

Mar.

Apr.

May.

Jun.

Jul.

Aug.

Sept.

Oct.

Nov.

Dec.

Baitfish

X

X

X

X

X

X

X

X

X

X

X

X

Crayfish

Decapoda

X

X

X

X

X

X

X

X

X

X

X

X

Leech

Hirudinea

X

X

X

X

X

X

X

X

X

X

X

X

Midge

Chironomidae

X

X

X

X

X

X

X

X

X

X

X

X

Scud

Gammarus

X

X

X

X

X

X

X

X

X

X

X

X

Sculpin

Cottus

X

X

X

X

X

X

X

X

X

X

X

X