| Common Name | Scientific Name | Dates | Location | Size | Imitations |
|---|---|---|---|---|---|
| Salmonfly | Pteronarcys californica | May-June | Riverside-Ashton Box Cyn., Coffeepot Rapids | 4-6 | Nymphs: Black Rubberlegs, Kaufman's Dry: H.F. Salmonfly, Sofa Pillow
|
| Golden Stone | Calineuria spp. Hesperoperia spp. | June-July | Riverside-Ashton Box Cyn., Coffeepot Rapids | 8-10 | Golden Stone Nymph H.F. Golden Stone, Stopper, Stimulator
|
| Caddis | Order: Trichoptera many different genera | June-August | entire river | 12-20 | wet: soft hackles, pupae, emergers dry: Elk Hair, Henryville, Partirdge
|
| Pale Morning Dun | Drunella infrequens, inermis, lacustris | June-August | Harriman, Last Chance, upper river | 16-20 | Hare's Ear, Pheasant Tail nymphs PMD emerger, no hackle, rusty spinner
|
| Green Drake | Drunella grandis | late June | Harriman, Last Chance | 10-12 | Green Drake nymph, emerger Mike's Drake, Paradrake
|
| Brown Drake | Ephemera simulans | late June-early July | Harriman | 8-10 | Mike's Drake, Paradrake, Brown Drake Spinner
|
| Flav | Drunella flavilinea | July | Box Canyon-Riverside, upper river | 14-16 | Pheasant Tail, Hare's Ear, flav nymphs Slate-Olive emerger, no hackle, spinner
|
| Speckled Spinner | Calibaetis spp. | July-August | Harriman, upper river | 14-16 | Calibaetis nymph Adams, Speckled Spinner
|
| Trico | Tricorythodes minutus | August | Harriman | 20-25 | White-Black spinner, no hackle
|
| Mahogany Dun | Paraleptophlebia bicornuta | September | Harriman | 14-18 | Slate-Tan emerger, no hackle, spinner or Red Quill, Royal Wulff
|
| Tiny Blue-Winged Olive | Pseudocloeon edmundsi | July-October | Harriman, lower river | 22-24 | Pheasant Tail Nymph or Blue-winged Olive no hackle, throax
|
| Tiny Blue Quill | Baetis spp. | June-October | entire river | 20-22 | Pheasant Tail Nymph or Blue-winged Olive no hackle, throax
|
| Blue-Winged Olive | Baetis tricaudatus | Oct.-November, Feb.-April | entire river | 16-18 | Pheasant Tail Nymph or Blue-winged Olive no hackle, throax
|
| Terrestrials | . | July-September | Harriman, lower river | 12-18/8-10 | black beetles, red and black ants/H.F. & Dave's Hopper, Stopper
|
