Little Black Stonefly
Stonefly
Capnia sp.
- Season
- Jan–Mar
- Peak
- Feb
- Flies
- #18, Elk Hair Caddis
- Water temp
- 38–50°F
Ellis River Hatch Chart
Which insects hatch on the Ellis each month, when they peak, and the flies to match.
- 12Hatches
- 2Hatching in November
Hatching in November
-
Blue-Winged OliveMayfly
#18-22, Sparkle Dun
-
Autumn CaddisCaddis
#14, October Caddis
Ellis River hatch calendar
From the Saco watershed hatch chart; timing on the Ellis can run earlier or later.
| Hatch | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Flies | Water temp |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Little Black Stonefly Stonefly Capnia sp. | In season | Peak | In season | #18, Elk Hair Caddis | 38–50°F | |||||||||
| Blue-Winged Olive Mayfly Baetis tricaudatus | In season | Peak | Peak | In season | #18-22, Sparkle Dun | 44–58°F | ||||||||
| Quill Gordon Mayfly Epeorus pleuralis | In season | Peak | #12-14, Quill Gordon | 48–56°F | ||||||||||
| Grannom Caddis Caddis Brachycentrus numerosus | In season | Peak | #14-16, Elk Hair Caddis | 48–58°F | ||||||||||
| Hendrickson Mayfly Ephemerella subvaria | Peak | In season | #12-14, Comparadun | 48–58°F | ||||||||||
| March Brown Mayfly Stenonema vicarium | In season | Peak | In season | #10-12, March Brown | 52–62°F | |||||||||
| Green Drake Mayfly Ephemera guttulata | Peak | Peak | #8-10, Green Drake Wulff | 55–65°F | ||||||||||
| Light Cahill Mayfly Stenacron interpunctatum | In season | Peak | In season | #14, Light Cahill | 58–70°F | |||||||||
| Sulphur Mayfly Ephemerella dorothea | In season | Peak | In season | #16-18, Parachute Sulphur | 55–68°F | |||||||||
| Trico Mayfly Tricorythodes sp. | In season | Peak | In season | #22-26, Trico Spinner | 60–72°F | |||||||||
| Isonychia Mayfly Isonychia bicolor | In season | Peak | In season | #10-12, Slate Drake | 58–68°F | |||||||||
| Autumn Caddis Caddis Neophylax sp. | In season | Peak | In season | #14, October Caddis | 48–58°F |
- In season
- Peak
- This month
Key hatches
Blue-Winged Olive
Mayfly
Baetis tricaudatus
- Season
- Mar–Apr, Oct–Nov
- Peak
- Apr, Oct
- Flies
- #18-22, Sparkle Dun
- Water temp
- 44–58°F
Quill Gordon
Mayfly
Epeorus pleuralis
- Season
- Mar–Apr
- Peak
- Apr
- Flies
- #12-14, Quill Gordon
- Water temp
- 48–56°F
Grannom Caddis
Caddis
Brachycentrus numerosus
- Season
- Apr–May
- Peak
- May
- Flies
- #14-16, Elk Hair Caddis
- Water temp
- 48–58°F
Hendrickson
Mayfly
Ephemerella subvaria
- Season
- Apr–May
- Peak
- Apr
- Flies
- #12-14, Comparadun
- Water temp
- 48–58°F
March Brown
Mayfly
Stenonema vicarium
- Season
- Apr–Jun
- Peak
- May
- Flies
- #10-12, March Brown
- Water temp
- 52–62°F
Ellis River hatch FAQ
What hatches are on the Ellis?
12 hatches through the year, among them Little Black Stonefly, Blue-Winged Olive, Quill Gordon, Grannom Caddis, and Hendrickson.
When do the hatches on the Ellis peak?
The chart peaks Little Black Stonefly in Feb, Blue-Winged Olive in Apr, Oct, Quill Gordon in Apr, and Grannom Caddis in May.
Where does this hatch chart come from?
From the Saco watershed hatch chart; timing on the Ellis can run earlier or later. Check local reports before you go.
