
| APR | MAY | JUN | JUL | AUG | SEP | ||||||||||||||||||||||
| Week no. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | |
| Site | Ind | ||||||||||||||||||||||||||
| Small Skipper | 106 | . | . | . | . | 2 | 7 | 6 | 6 | 9 | 23 | 21 | 16 | 6 | 10 | . | . | . | |||||||||
| Large Skipper | 108 | . | . | . | 3 | 17 | 13 | 15 | 19 | 10 | 14 | . | 4 | 12 | . | . | 1 | . | |||||||||
| Dingy Skipper | 5 | . | . | . | 4 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Grizzled Skipper | 5 | . | . | 1 | . | 1 | 2 | . | 1 | . | . | . | . | . | . | . | . | . | |||||||||
| Wood White | 8 | . | . | . | 1 | 3 | 1 | 1 | 2 | . | . | . | . | . | . | . | . | . | |||||||||
| Brimstone | 5 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | |||||||||
| Large White | 10 | . | . | . | . | 1 | . | . | . | . | . | . | 4 | 1 | 2 | . | 1 | 1 | |||||||||
| Small White | 7 | . | . | . | . | 1 | . | . | . | . | . | . | 2 | 1 | 2 | . | . | 1 | |||||||||
| Green-veined White | 4 | 1 | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | |||||||||
| Orange Tip | 7 | 4 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Green Hairstreak | 1 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Small Copper | 2 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | |||||||||
| Common Blue | 41 | . | . | . | . | 4 | 1 | 2 | . | . | . | . | . | 1 | 2 | 9 | 5 | 7 | |||||||||
| Red Admiral | 16 | . | . | . | . | 2 | . | 1 | . | 1 | 3 | . | 4 | 1 | 2 | . | 2 | . | |||||||||
| Small Tortoiseshell | 10 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 4 | 3 | |||||||||
| Peacock | 179 | 5 | 3 | 1 | . | . | . | . | . | . | . | 4 | 13 | 87 | 55 | 2 | 6 | . | |||||||||
| Small Pearl-bordered Fritillary | 12 | . | . | . | . | 7 | 4 | 1 | . | . | . | . | . | . | . | . | . | . | |||||||||
| Silver-washed Fritillary | 27 | . | . | . | . | . | . | . | . | . | 7 | 2 | 4 | 5 | 8 | . | 1 | . | |||||||||
| Marsh Fritillary | 2 | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Speckled Wood | 85 | 3 | 6 | 1 | 6 | 4 | 4 | 5 | 2 | . | . | 2 | 1 | 6 | 6 | 11 | 15 | 10 | |||||||||
| Marbled White | 130 | . | . | . | . | . | . | 1 | 23 | 18 | 42 | 18 | 25 | 3 | . | . | . | . | |||||||||
| Gatekeeper / Hedge Brown | 487 | . | . | . | . | . | . | . | . | 3 | 85 | 77 | 115 | 120 | 61 | 19 | 7 | . | |||||||||
| Meadow Brown | 143 | . | . | . | . | 3 | 1 | 2 | 14 | 4 | 13 | 11 | 24 | 38 | 11 | 16 | 4 | 2 | |||||||||
| Small Heath | 6 | . | . | . | . | 5 | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||||
| Ringlet | 352 | . | . | . | . | . | 3 | 10 | 147 | 72 | 75 | 23 | 20 | 2 | . | . | . | . | |||||||||