
| 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 | 135 | . | . | . | . | . | . | . | . | . | 10 | 31 | 33 | 18 | 4 | 1 | . | . | . | . | . | ||||||
| Large Skipper | 75 | . | . | . | . | . | 1 | 1 | 4 | 13 | 10 | 12 | 18 | 3 | . | . | . | . | . | . | . | ||||||
| Clouded Yellow | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | ||||||
| Brimstone | 68 | 4 | . | 1 | 6 | 5 | 3 | 3 | 2 | . | . | . | . | 1 | 17 | 6 | 3 | 2 | . | . | . | ||||||
| Large White | NI | . | . | 1 | . | 1 | 1 | . | 1 | . | . | 1 | 12 | 8 | 3 | 1 | 7 | . | . | . | . | ||||||
| Small White | 22 | . | . | 1 | . | . | . | 1 | . | . | . | 1 | . | 2 | 1 | 5 | 4 | 4 | 2 | . | . | ||||||
| Green-veined White | NI | . | . | 2 | 4 | 1 | 3 | . | . | . | . | . | 9 | 3 | 3 | 1 | 1 | 1 | 1 | . | . | ||||||
| Orange Tip | 9 | 2 | . | 2 | . | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brown Hairstreak | 8 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | 4 | . | . | . | . | . | ||||||
| Small Copper | 19 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 3 | 3 | 1 | 3 | . | 4 | 2 | ||||||
| Brown Argus | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | ||||||
| Common Blue | 27 | . | . | . | . | . | . | . | . | . | . | . | . | . | 5 | 4 | 2 | 9 | 2 | 1 | 1 | ||||||
| White Admiral | 5 | . | . | . | . | . | . | . | . | 1 | 1 | 3 | . | . | . | . | . | . | . | . | . | ||||||
| Red Admiral | 31 | . | . | . | . | . | . | . | . | . | . | 3 | 2 | 2 | . | 2 | 2 | 3 | 3 | 6 | 6 | ||||||
| Painted Lady | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | 1 | ||||||
| Small Tortoiseshell | 12 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | 4 | 6 | . | . | . | ||||||
| Peacock | NI | 4 | 2 | . | . | . | . | . | . | . | . | . | . | 7 | 16 | . | 1 | . | . | 1 | . | ||||||
| Comma | 48 | 2 | . | . | . | . | . | . | . | 4 | 1 | 1 | 9 | 3 | . | . | . | 3 | 1 | . | 10 | ||||||
| Silver-washed Fritillary | NI | . | . | . | . | . | . | . | . | 1 | 21 | . | 19 | 34 | 9 | 8 | . | . | . | . | . | ||||||
| Marsh Fritillary | 5 | . | . | . | 1 | 1 | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Speckled Wood | 226 | 1 | 6 | 1 | 2 | 7 | 20 | 19 | 11 | 4 | 9 | 2 | 14 | 5 | 16 | 19 | 19 | 8 | 15 | 2 | 5 | ||||||
| Marbled White | 103 | . | . | . | . | . | . | . | . | 5 | 30 | 44 | 19 | . | . | . | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | NI | . | . | . | . | . | . | . | . | . | . | 4 | 82 | 151 | 57 | 10 | . | . | . | . | . | ||||||
| Meadow Brown | 1453 | . | . | . | . | . | . | 1 | 27 | 209 | 426 | 239 | 121 | 140 | 49 | 16 | 24 | . | . | . | . | ||||||
| Ringlet | 643 | . | . | . | . | . | . | . | . | 33 | 140 | 207 | 135 | 39 | 2 | . | . | . | . | . | . | ||||||
| Silver Y | NI | . | . | . | . | 12 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||