Midge
Midge Peak now
Chironomidae
- Season
- Nov–Mar
- Peak
- Feb, Nov
- Flies
- #22-26, Griffith's Gnat
- Water temp
- 34–65°F
Root River Hatch Chart
Which insects hatch on the Root each month, when they peak, and the flies to match.
- 11Hatches
- 3Hatching in November
Hatching in November
-
Midge PeakMidge
#22-26, Griffith's Gnat
-
Blue-Winged OliveMayfly
#18-22, Sparkle Dun
-
Fall BWOOther
#18-22, CDC Emerger
Root River hatch calendar
From the Upper Mississippi-Black-Root watershed hatch chart; timing on the Root can run earlier or later.
| Hatch | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Flies | Water temp |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Midge Midge Chironomidae | In season | Peak | In season | Peak | In season | #22-26, Griffith's Gnat | 34–65°F | |||||||
| Little Black Stonefly Stonefly Capnia sp. | In season | Peak | #18, Black Elk Hair | 38–50°F | ||||||||||
| Blue-Winged Olive Mayfly Baetis tricaudatus | In season | Peak | In season | In season | Peak | In season | #18-22, Sparkle Dun | 44–58°F | ||||||
| Hendrickson Mayfly Ephemerella subvaria | Peak | In season | #12-14, Comparadun | 48–58°F | ||||||||||
| Little Black Caddis Caddis Chimarra sp. | Peak | In season | #18, X-Caddis | 46–56°F | ||||||||||
| Brown Drake Mayfly Ephemera simulans | Peak | In season | #10-12, Brown Drake | 55–65°F | ||||||||||
| Sulphur / PMD Other Ephemerella dorothea | In season | Peak | In season | #16-18, Parachute Adams | 55–68°F | |||||||||
| Tan Caddis Caddis Hydropsyche sp. | In season | Peak | In season | In season | #14-16, Elk Hair Caddis | 55–68°F | ||||||||
| Terrestrials Other Ants · Beetles · Hoppers | In season | Peak | In season | #10-18, Chernobyl Ant | 62–78°F | |||||||||
| Trico Mayfly Tricorythodes sp. | In season | Peak | In season | #22-26, Trico Spinner | 60–72°F | |||||||||
| Fall BWO Other Baetis sp. | In season | Peak | In season | #18-22, CDC Emerger | 44–56°F |
- In season
- Peak
- This month
Key hatches
Little Black Stonefly
Stonefly
Capnia sp.
- Season
- Feb–Mar
- Peak
- Mar
- Flies
- #18, Black Elk Hair
- Water temp
- 38–50°F
Blue-Winged Olive
Mayfly
Baetis tricaudatus
- Season
- Mar–May, Sep–Nov
- Peak
- Apr, Oct
- Flies
- #18-22, Sparkle Dun
- Water temp
- 44–58°F
Hendrickson
Mayfly
Ephemerella subvaria
- Season
- Apr–May
- Peak
- Apr
- Flies
- #12-14, Comparadun
- Water temp
- 48–58°F
Little Black Caddis
Caddis
Chimarra sp.
- Season
- Apr–May
- Peak
- Apr
- Flies
- #18, X-Caddis
- Water temp
- 46–56°F
Brown Drake
Mayfly
Ephemera simulans
- Season
- May–Jun
- Peak
- May
- Flies
- #10-12, Brown Drake
- Water temp
- 55–65°F
Root River hatch FAQ
What hatches are on the Root?
11 hatches through the year, among them Midge, Little Black Stonefly, Blue-Winged Olive, Hendrickson, and Little Black Caddis.
When do the hatches on the Root peak?
The chart peaks Midge in Feb, Nov, Little Black Stonefly in Mar, Blue-Winged Olive in Apr, Oct, and Hendrickson in Apr.
Where does this hatch chart come from?
From the Upper Mississippi-Black-Root watershed hatch chart; timing on the Root can run earlier or later. Check local reports before you go.
