Sulphur or Pale evening dun (invaria)
Ephemeroptera(Mayfly)
Family: ephemerellidae Genus: ephemerella Species: invaria Common Name: Sulphur or Pale Evening Dun
Important Statistics
Size: 7-10 mm Water Temp: 50 - 60 degrees
Hook: #12 - #14 2x Emerging: Afternoons generally
Hatch Date: Late May in Catskills Habitat: Fast moving water
SPECIES LIFE STAGE HOOK BODY COLOR WING COLOR TAIL COLOR invaria dun #12-14 
light medium gray medium texture light gray invaria spinner #12-14 clear antron light gray
- Sulphur (invaria) Comments:
-
- Nymph
- Bounce nymph off the bottom in fast currents.
- Dun
- Float the fly on the main currents. Trout are very selective so patterns should be a very close match. Comparadun or Haystack on #12 or #14 are the best bet. If no takes from the feeding trout, the smaller dorothea may be the preferred hatch. Vitreus may also be a possibility.
- Spinner
-
Mating occurs over riffles where the eggs are dropped. Dead drift an exact imitation over riffles. If no action think dorothea.
Mayfly |Entomology |Trout |flyfishing
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Sulphur or Pale evening dun (invaria)
Ephemeroptera(Mayfly)
| Family: | ephemerellidae |
| Genus: | ephemerella |
| Species: | invaria |
| Common Name: | Sulphur or Pale Evening Dun |
| Size: | 7-10 mm | Water Temp: | 50 - 60 degrees | |
| Hook: | #12 - #14 2x | Emerging: | Afternoons generally | |
| Hatch Date: | Late May in Catskills | Habitat: | Fast moving water |
| SPECIES | LIFE STAGE | HOOK | BODY COLOR | WING COLOR | TAIL COLOR |
| invaria | dun | #12-14 | | light medium gray medium texture | light gray |
| invaria | spinner | #12-14 | clear antron | light gray |
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