
| 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 | NI | . | . | . | . | . | . | 2 | 5 | 8 | 21 | 87 | 50 | 44 | 17 | . | . | . | |||||||||
| Large Skipper | 72 | . | . | . | . | 3 | 7 | 16 | 20 | 8 | 4 | 3 | 1 | 2 | . | . | . | . | |||||||||
| Wood White | 3 | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Brimstone | 72 | 14 | 5 | . | . | 1 | 1 | . | . | . | . | 5 | 17 | 15 | 1 | . | 2 | . | |||||||||
| Large White | NI | . | 2 | . | . | 1 | . | . | . | . | 2 | 19 | 11 | 23 | 2 | 2 | 1 | 1 | |||||||||
| Small White | NI | . | 4 | . | . | . | 1 | . | . | . | 4 | 7 | 10 | 6 | 4 | 4 | 13 | . | |||||||||
| Green-veined White | 22 | 1 | 1 | . | . | 3 | . | . | . | . | . | 2 | 2 | 5 | . | 1 | . | . | |||||||||
| Orange Tip | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Purple Hairstreak | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Small Copper | NI | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 11 | 1 | . | 2 | |||||||||
| Brown Argus | NI | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 2 | . | . | |||||||||
| Common Blue | NI | . | . | . | . | 24 | 21 | . | 1 | . | 1 | . | 5 | 26 | 97 | 27 | 2 | . | |||||||||
| Holly Blue | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Red Admiral | NI | . | . | . | . | . | 2 | . | . | . | . | . | 1 | . | 2 | 9 | 20 | . | |||||||||
| Painted Lady | NI | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 1 | . | . | |||||||||
| Small Tortoiseshell | NI | 1 | . | . | . | . | . | 1 | . | . | 2 | 2 | . | . | 1 | 3 | 19 | . | |||||||||
| Peacock | 177 | 9 | 11 | . | . | 2 | . | . | . | . | 1 | 7 | 43 | 74 | 13 | 1 | 2 | . | |||||||||
| Comma | NI | . | . | . | . | . | . | . | 2 | . | . | . | 2 | 4 | 2 | . | 15 | 6 | |||||||||
| Pearl-bordered Fritillary | 5 | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Speckled Wood | 45 | 1 | 4 | 1 | . | . | 2 | 2 | 2 | 1 | . | 2 | . | 3 | 6 | 4 | 4 | 1 | |||||||||
| Marbled White | 72 | . | . | . | . | . | . | . | 6 | 11 | 17 | 32 | 3 | 3 | . | . | . | . | |||||||||
| Gatekeeper / Hedge Brown | 375 | . | . | . | . | . | . | . | . | . | . | 39 | 73 | 152 | 71 | 3 | . | . | |||||||||
| Meadow Brown | 446 | . | . | . | . | 1 | 9 | 22 | 77 | 70 | 55 | 83 | 37 | 47 | 26 | . | . | . | |||||||||
| Small Heath | NI | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | 10 | . | 1 | . | |||||||||
| Ringlet | 377 | . | . | . | . | . | . | 1 | 9 | 20 | 74 | 180 | 38 | 50 | 3 | . | . | . | |||||||||