
| 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 | . | . | . | . | . | . | . | . | . | 8 | 29 | 48 | 43 | 34 | 27 | 4 | . | . | . | |||||||
| Large Skipper | 198 | . | . | . | . | . | 3 | 15 | 31 | 28 | 70 | 22 | 7 | 5 | 1 | 1 | . | . | . | . | |||||||
| Wood White | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||
| Brimstone | 32 | 8 | 4 | 4 | 2 | 3 | . | . | . | . | . | . | . | 4 | 3 | . | . | . | . | . | |||||||
| Large White | 83 | . | . | . | 4 | 2 | . | . | 2 | 2 | 5 | 4 | 11 | 6 | 20 | 10 | 3 | 3 | . | 2 | |||||||
| Small White | 28 | . | . | . | . | 1 | 1 | 1 | . | . | . | 2 | 4 | 7 | 6 | 2 | 1 | . | . | . | |||||||
| Green-veined White | 79 | . | . | 3 | 6 | 3 | 3 | . | 1 | . | . | . | 11 | 9 | 13 | 11 | 8 | . | 2 | . | |||||||
| Orange Tip | 2 | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Purple Hairstreak | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | |||||||
| Small Copper | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | . | |||||||
| Common Blue | 32 | . | . | . | . | . | 3 | 1 | . | . | . | . | . | 2 | 5 | 7 | 7 | 5 | 1 | . | |||||||
| Red Admiral | 1 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Tortoiseshell | 7 | . | . | . | . | . | . | . | . | . | . | 3 | 1 | 1 | . | . | . | . | . | . | |||||||
| Peacock | 88 | 11 | 14 | 6 | 3 | . | . | . | . | . | . | . | 8 | 9 | 11 | 7 | . | 2 | 1 | . | |||||||
| Comma | 14 | 1 | 3 | . | . | . | . | . | . | . | . | 4 | 1 | . | . | . | . | . | . | . | |||||||
| Speckled Wood | 220 | . | . | 8 | 6 | 6 | 15 | 14 | 26 | 8 | 10 | 4 | 10 | 10 | 12 | 15 | 5 | 12 | 11 | 21 | |||||||
| Marbled White | 64 | . | . | . | . | . | . | . | . | . | 6 | 19 | 15 | 5 | 2 | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 204 | . | . | . | . | . | . | . | . | . | . | . | 34 | 37 | 62 | 45 | 9 | . | . | . | |||||||
| Meadow Brown | 469 | . | . | . | . | . | . | . | 17 | 44 | 85 | 55 | 54 | 56 | 66 | 30 | 7 | . | . | . | |||||||
| Small Heath | 26 | . | . | . | . | 3 | 4 | 11 | 3 | . | . | . | . | . | . | 3 | 2 | . | . | . | |||||||
| Ringlet | 221 | . | . | . | . | . | . | . | . | 9 | 18 | 85 | 20 | 17 | 14 | 4 | 1 | . | . | . | |||||||