Early Black Stonefly
Stonefly
Allocapnia sp.
- Season
- Mar–Apr
- Peak
- Mar
- Flies
- #16-18, Black Elk Hair
- Water temp
- 36–50°F
Wiscoy Creek Hatch Chart
Which insects hatch on Wiscoy Creek each month, when they peak, and the flies to match.
- 12Hatches
- 1Hatching in November
Hatching in November
-
Fall BWOOther
#18-20, Sparkle Dun
Wiscoy Creek hatch calendar
From the Southwestern Lake Ontario watershed hatch chart; timing on Wiscoy Creek can run earlier or later.
| Hatch | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Flies | Water temp |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Early Black Stonefly Stonefly Allocapnia sp. | Peak | In season | #16-18, Black Elk Hair | 36–50°F | ||||||||||
| Blue-Winged Olive Mayfly Baetis tricaudatus | In season | Peak | Peak | In season | #18-22, CDC Emerger | 44–58°F | ||||||||
| Hendrickson Mayfly Ephemerella subvaria | In season | Peak | #12-14, Comparadun | 48–58°F | ||||||||||
| Brown Drake Mayfly Ephemera simulans | In season | Peak | #10-12, Brown Drake | 55–65°F | ||||||||||
| Grannom Caddis Brachycentrus numerosus | Peak | In season | #14-16, Elk Hair Caddis | 48–58°F | ||||||||||
| Hex / Giant Mayfly Mayfly Hexagenia limbata | Peak | In season | #4-6, Hex Paradrake | 62–72°F | ||||||||||
| Michigan Caddis Caddis Hydropsyche sp. | In season | Peak | In season | #14, Sparkle Pupa | 58–70°F | |||||||||
| Sulphur Mayfly Ephemerella dorothea | Peak | In season | #16-18, Parachute Sulphur | 55–68°F | ||||||||||
| Trico Mayfly Tricorythodes sp. | In season | Peak | In season | #22-26, Trico Poly Wing | 60–72°F | |||||||||
| Flying Ant Terrestrial Camponotus sp. | Peak | In season | #16-18, Fur Ant | 64–76°F | ||||||||||
| Isonychia Mayfly Isonychia bicolor | In season | Peak | In season | #10-12, Slate Drake | 58–68°F | |||||||||
| Fall BWO Other Baetis sp. | In season | Peak | In season | #18-20, Sparkle Dun | 44–56°F |
- In season
- Peak
- This month
Key hatches
Blue-Winged Olive
Mayfly
Baetis tricaudatus
- Season
- Apr–May, Sep–Oct
- Peak
- May, Sep
- Flies
- #18-22, CDC Emerger
- Water temp
- 44–58°F
Hendrickson
Mayfly
Ephemerella subvaria
- Season
- Apr–May
- Peak
- May
- Flies
- #12-14, Comparadun
- Water temp
- 48–58°F
Brown Drake
Mayfly
Ephemera simulans
- Season
- May–Jun
- Peak
- Jun
- Flies
- #10-12, Brown Drake
- Water temp
- 55–65°F
Grannom
Caddis
Brachycentrus numerosus
- Season
- May–Jun
- Peak
- May
- Flies
- #14-16, Elk Hair Caddis
- Water temp
- 48–58°F
Hex / Giant Mayfly
Mayfly
Hexagenia limbata
- Season
- Jun–Jul
- Peak
- Jun
- Flies
- #4-6, Hex Paradrake
- Water temp
- 62–72°F
Wiscoy Creek hatch FAQ
What hatches are on Wiscoy Creek?
12 hatches through the year, among them Early Black Stonefly, Blue-Winged Olive, Hendrickson, Brown Drake, and Grannom.
When do the hatches on Wiscoy Creek peak?
The chart peaks Early Black Stonefly in Mar, Blue-Winged Olive in May, Sep, Hendrickson in May, and Brown Drake in Jun.
Where does this hatch chart come from?
From the Southwestern Lake Ontario watershed hatch chart; timing on Wiscoy Creek can run earlier or later. Check local reports before you go.
