
| 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 | 90 | . | . | . | . | . | . | . | 4 | 24 | 20 | 28 | 13 | 1 | . | . | . | . | . | . | . | ||||||
| Large Skipper | 61 | . | . | . | . | . | . | 2 | 10 | 25 | 8 | 6 | 7 | . | . | . | 2 | . | . | . | . | ||||||
| Dingy Skipper | 7 | . | . | . | . | 2 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | 41 | 6 | 14 | . | 4 | 2 | . | . | . | . | . | . | 2 | . | 4 | . | . | 4 | 2 | . | 1 | ||||||
| Large White | 72 | . | . | . | . | . | 2 | . | . | . | 1 | 4 | 9 | 4 | 8 | 7 | 17 | 15 | 2 | . | 2 | ||||||
| Small White | 71 | . | . | . | . | 1 | 1 | 3 | 2 | . | . | 3 | 7 | 6 | 10 | 20 | 4 | 3 | 2 | . | . | ||||||
| Green-veined White | 11 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 4 | 2 | 1 | 1 | . | . | . | ||||||
| Orange Tip | 18 | . | 4 | . | 6 | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | 23 | . | . | . | 1 | . | 5 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 38 | . | . | . | . | 2 | 2 | . | . | . | . | . | 5 | 1 | 2 | 2 | 7 | 3 | 3 | 3 | . | ||||||
| Silver-studded Blue | 533 | . | . | . | . | . | 1 | 12 | 63 | 158 | 108 | 116 | 34 | 10 | 3 | 3 | 6 | 5 | 9 | 1 | . | ||||||
| Common Blue | 173 | . | . | . | . | . | 10 | 2 | 5 | 9 | 4 | . | 2 | . | 15 | 8 | 24 | 21 | 19 | 4 | 2 | ||||||
| Holly Blue | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 1 | . | . | . | . | ||||||
| Red Admiral | 11 | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | 3 | . | 1 | 1 | 1 | 1 | 2 | ||||||
| Painted Lady | 27 | . | 4 | . | . | . | 1 | 1 | 2 | 1 | . | . | 2 | 1 | 1 | 3 | 2 | 1 | 1 | 1 | 3 | ||||||
| Small Tortoiseshell | 77 | 17 | 15 | 3 | 1 | . | 1 | 2 | 2 | 2 | . | 1 | . | 1 | . | 2 | 2 | 8 | 7 | 5 | 3 | ||||||
| Peacock | 87 | 14 | 17 | 4 | 2 | 1 | . | . | 1 | . | . | . | 5 | 6 | 11 | 7 | 11 | 3 | . | . | 1 | ||||||
| Comma | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Dark Green Fritillary | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | ||||||
| Wall Brown | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | ||||||
| Marbled White | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | ||||||
| Grayling | 948 | . | . | . | . | . | . | . | . | 4 | 20 | 165 | 178 | 82 | 171 | 130 | 111 | 42 | 36 | 5 | 4 | ||||||
| Gatekeeper / Hedge Brown | 574 | . | . | . | . | . | . | . | . | . | . | 72 | 118 | 97 | 109 | 87 | 47 | 37 | 7 | . | . | ||||||
| Meadow Brown | 391 | . | . | . | . | . | . | 3 | 14 | 47 | 35 | 102 | 74 | 24 | 34 | 24 | 18 | 7 | 8 | 1 | . | ||||||
| Small Heath | 338 | . | . | . | . | . | 9 | 17 | 72 | 87 | 48 | 25 | 7 | 1 | 1 | . | 2 | 2 | 7 | 5 | 4 | ||||||