
| 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 | 17 | . | . | . | . | . | . | . | . | 3 | 3 | 1 | 1 | 2 | 1 | . | . | . | |||||||||
| Large Skipper | 115 | . | . | . | . | . | . | . | 7 | 34 | 27 | 6 | 4 | . | . | . | . | . | |||||||||
| Wood White | 134 | . | . | . | 3 | 4 | 12 | 20 | 23 | 15 | 6 | 3 | 1 | 1 | . | 1 | . | . | |||||||||
| Brimstone | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Large White | 9 | . | . | . | . | 1 | 1 | . | . | . | 1 | 1 | 3 | . | 1 | . | . | . | |||||||||
| Small White | 24 | . | . | . | 2 | 1 | 1 | . | 1 | . | 2 | 2 | 3 | . | 2 | 1 | 1 | 2 | |||||||||
| Green-veined White | 114 | . | . | 5 | 3 | 22 | 8 | 7 | 1 | 2 | 1 | 6 | 17 | 10 | 3 | 5 | 1 | 1 | |||||||||
| Orange Tip | 27 | . | 1 | 7 | 9 | 5 | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Purple Hairstreak | 2 | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | |||||||||
| White-letter Hairstreak | 4 | . | . | . | . | . | . | . | . | . | . | 1 | 2 | 1 | . | . | . | . | |||||||||
| Small Copper | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | |||||||||
| Common Blue | 44 | . | . | . | . | . | . | 1 | 1 | 1 | . | . | 2 | 2 | 11 | 8 | 2 | 1 | |||||||||
| Holly Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||||||
| White Admiral | 10 | . | . | . | . | . | . | . | . | . | 6 | 1 | . | . | . | . | . | . | |||||||||
| Red Admiral | 15 | . | . | . | . | . | . | . | . | 1 | . | . | 2 | 1 | . | 2 | 2 | 3 | |||||||||
| Small Tortoiseshell | 24 | 1 | . | . | . | . | . | . | . | . | 2 | 1 | 3 | 2 | . | . | 6 | . | |||||||||
| Peacock | NI | 10 | 5 | 4 | 1 | 2 | . | . | . | . | . | . | 20 | 9 | 1 | 2 | . | . | |||||||||
| Comma | 32 | 3 | . | . | . | . | . | . | . | . | 3 | 4 | 2 | . | . | . | 2 | 7 | |||||||||
| Pearl-bordered Fritillary | 43 | . | . | . | 8 | 5 | 17 | 9 | . | . | . | . | . | . | . | . | . | . | |||||||||
| Silver-washed Fritillary | 32 | . | . | . | . | . | . | . | . | 1 | 9 | 6 | 1 | 2 | 3 | . | . | . | |||||||||
| Speckled Wood | 172 | . | 1 | . | 3 | 3 | 2 | 9 | 9 | 13 | 7 | 4 | 13 | 3 | 13 | 14 | 14 | 6 | |||||||||
| Marbled White | 33 | . | . | . | . | . | . | . | . | . | 16 | 9 | 4 | . | . | . | . | . | |||||||||
| Gatekeeper / Hedge Brown | 566 | . | . | . | . | . | . | . | . | . | 4 | 84 | 157 | 152 | 20 | 13 | . | . | |||||||||
| Meadow Brown | 104 | . | . | . | . | . | . | . | . | 11 | 12 | 10 | 13 | 12 | 8 | 7 | . | . | |||||||||
| Ringlet | 769 | . | . | . | . | . | . | . | . | 35 | 214 | 203 | 67 | 16 | . | . | . | . | |||||||||