Midge
Chironomidae spp.
- Peak week
- Year-round
- Intensity
- Heavy
- Time of day
- Midday
- Water temp
- 32–60°F · peak 40°F
Top flies
Griffith's Gnat #20-24 · Zebra Midge #20-22 · WD-40 #20
Primary winter food
Hatch calendar
Middle Tennessee tailwater with reliable year-round trout fishing. Heavy midge fishery and consistent generation schedule for floats.
Fishing regulations change every season. This page is a summary maintained by Bield — bag limits, exact dates, and species-specific rules must be verified with Cumberland Transit / Tennessee Trout Association before each trip.
What's hatching now
Chironomidae spp.
Top flies
Griffith's Gnat #20-24 · Zebra Midge #20-22 · WD-40 #20
Primary winter food
Baetis spp.
Top flies
Parachute BWO #18-20 · CDC Comparadun #18-20 · Pheasant Tail Nymph #18
Spring emergence
Ephemerella dorothea / invaria
Top flies
Sulphur Parachute #16-18 · Sulphur Comparadun #16-18 · Sulphur Sparkle Dun #16
Ephemerella excrucians
Top flies
PMD Parachute #16-18 · PMD Comparadun #16 · Rusty Spinner #16-18
Morning emergence
Hydropsyche spp.
Top flies
Elk Hair Caddis #14-16 · X-Caddis #14 · LaFontaine Sparkle Pupa #14
Ephemerella subvaria
Top flies
Hendrickson Parachute #12-14 · Red Quill Spinner #12-14 · Pheasant Tail Nymph #14
Full year calendar
Each row is a hatch species. Bar color = type, opacity = intensity, peak month outlined. The current month is highlighted on the timeline.
Hatch species on Caney Fork River
Chironomidae spp.
Water-temperature trigger
Top fly patterns
Year-round food source — the only consistent option on tailwaters in winter. On cold sunny days look for noses sipping clusters in slow water.
Baetis spp.
Water-temperature trigger
Top fly patterns
Most reliable Eastern hatch. Two emergences — spring (March-April) and fall (September-October). Best on overcast, drizzly days.
Ephemerella subvaria
Water-temperature trigger
Top fly patterns
First substantial mayfly hatch on most Eastern rivers. Spinner falls in evening can be as productive as the dun emergence.
Ephemerella dorothea / invaria
Water-temperature trigger
Top fly patterns
The most important mayfly hatch on Eastern rivers. Reliable emergence + spinner fall every evening for 4-6 weeks. Match the spinners with rusty-bodied patterns.
Stenacron / Leucrocuta spp.
Water-temperature trigger
Top fly patterns
Pale yellow-cream mayfly. Less intense hatch than Sulphur but reliable across many Eastern rivers in late spring through early summer.
Ephemerella excrucians
Water-temperature trigger
Top fly patterns
More reliable on tailwaters where stable temps suit the hatch. Often runs concurrently with Sulphurs but emerges in morning rather than evening.
Hydropsyche spp.
Water-temperature trigger
Top fly patterns
Workhorse summer caddis. Heavy emergences and egg-laying flights at dusk through summer. Drop a soft hackle on the swing during the evening.
(beetles, ants, hoppers)
Water-temperature trigger
Top fly patterns
Not a hatch but the most important summer trout food in many Eastern systems. Fish tight to grassy banks and overhanging trees. Hopper-dropper rigs are deadly July through September.
Tricorythodes spp.
Water-temperature trigger
Top fly patterns
Tiny black-bodied mayfly. The spinner fall — not the dun emergence — is the main event. Look for clouds of spinners over flat water at sunrise.
River info
Sources
Data quality: estimated
Bield Fish reads USGS gauges, watches for the trigger window, and pings you when Caney Fork River hits the temperature for your target hatch.
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