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Hatch Chart

  Click your cursor on the image in photo column to enlarge.
PhotoCommon NameScientific NameDatesLocationHook size
SalmonflyPteronarcys californicaMay-JunRiverside-Ashton, Box Cyn., Coffeepot Rapids4-6
Golden StoneCalineuria spp. Hesperoperia spp.Jun-JulRiverside-Ashton, Box Cyn., Coffeepot Rapids8-10
Yellow SallyIsoperia & Suwallia pallidulaJul-AugEntire River10-16
CaddisOrder: Trichoptera many different generaJun-Augentire river12-20
Pale Morning DunDrunella infrequens, inermis, lacustrisJun-AugHarriman, Last Chance, upper river16-20
Mahogany DunParalepto-phlebia bicornutaSepHarriman14-18
Brown DrakeEphemera simulanslate Jun-early JulHarriman8-10
Gray DrakeSiphlonurus occidentalisJune-JulyLower river12
Green DrakeDrunella grandislate JunHarriman, Last Chance10-12
Speckled SpinnerCalibaetis spp.Jul-AugHarriman, upper river14-16
Blue-Winged OliveBaetis tricaudatusOct-Nov, Feb-Aprentire river16-18
FlavDrunella flavilineaJulBox Canyon-Riverside, upper river14-16
Tiny Blue-Winged OlivePseudocloeon edmundsiJul-OctHarriman, lower river22-24
Tiny Blue QuillBaetis sp.Jun-Octentire river20-22
MidgeDiptera: ChironomidaeAll yearentire river3/16"-3/8"
TricoTricory-thodes minutusAugHarriman20-25
DragonflyOrder: Odonata   
DamselflyOrder: Odonata   
Terrestrials (Carpenter Ant)Camponotus sp.Jul-SepHarriman, lower river12-18 /8-10
Terrestrials (Flying Ant)Camponotus sp.Jul-SepHarriman, lower river12-18 /8-10
Terrestrials (Beetles)Eusattus muricatusJul-SepHarriman, lower river12-18 /8-10
Terrestrials (Grasshoppers)Caelifera in the order Orthoptera Jul-SepHarriman, lower river12-18 /8-10
Other (Leeches, Sculpins)    
SowbugOrder: Isopoda