
| 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 | 114 | . | . | . | . | . | . | . | . | . | 8 | 2 | 6 | 15 | 44 | 20 | 8 | 3 | 8 | . | . | . | |||||
| Large Skipper | 51 | . | . | . | . | . | . | 2 | 6 | 13 | 7 | 11 | 4 | 2 | 6 | . | . | . | . | . | . | . | |||||
| Wood White | 3 | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brimstone | 22 | 2 | 1 | 2 | . | . | . | 4 | 4 | . | . | . | . | . | . | . | 1 | . | 3 | 2 | . | . | |||||
| Large White | 19 | . | . | . | 1 | 3 | 1 | 1 | 1 | 1 | . | . | . | 1 | 2 | . | 3 | 3 | . | 1 | . | . | |||||
| Small White | 17 | . | . | . | 1 | . | . | . | 1 | . | . | . | . | 1 | 2 | 4 | . | 4 | 1 | 2 | . | . | |||||
| Green-veined White | 31 | . | . | . | 2 | 1 | 2 | 4 | . | . | . | . | . | . | 2 | 3 | 6 | 5 | 3 | 2 | . | . | |||||
| Orange Tip | 20 | . | . | 6 | 1 | 3 | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Purple Hairstreak | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 1 | . | . | |||||
| Small Copper | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | 2 | 1 | . | |||||
| Common Blue | 28 | . | . | . | . | . | . | 6 | 2 | 1 | 1 | . | . | . | . | . | . | 10 | 4 | 4 | . | . | |||||
| Small Tortoiseshell | 6 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | . | |||||
| Peacock | 24 | 4 | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 9 | 1 | . | . | |||||
| Comma | 4 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||
| Small Pearl-bordered Fritillary | 4 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 2 | . | . | . | . | . | . | . | |||||
| Pearl-bordered Fritillary | 64 | . | . | . | . | . | 9 | 28 | 22 | 3 | 1 | . | 1 | . | . | . | . | . | . | . | . | . | |||||
| High Brown Fritillary | 4 | . | . | . | . | . | . | . | . | . | 2 | . | 2 | . | . | . | . | . | . | . | . | . | |||||
| Silver-washed Fritillary | 110 | . | . | . | . | . | . | . | . | . | 12 | 5 | 11 | 14 | 21 | 9 | 15 | 9 | 11 | 3 | . | . | |||||
| Speckled Wood | 90 | . | . | . | . | 1 | . | 4 | 5 | 2 | 7 | 8 | . | 2 | 7 | 4 | 3 | 15 | 7 | 17 | 5 | 2 | |||||
| Wall Brown | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | |||||
| Gatekeeper / Hedge Brown | 87 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 19 | 24 | 18 | 15 | 5 | 3 | . | . | |||||
| Meadow Brown | 192 | . | . | . | . | . | . | . | . | . | 38 | 45 | 27 | 29 | 22 | 14 | 11 | 4 | 2 | . | . | . | |||||
| Small Heath | 54 | . | . | . | . | . | 12 | 21 | 9 | 4 | 3 | 1 | 1 | . | . | . | . | 1 | . | 1 | . | . | |||||
| Ringlet | 261 | . | . | . | . | . | . | . | . | . | 86 | 64 | 59 | 23 | 23 | 1 | . | 4 | 1 | . | . | . | |||||