
| 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 | ||||||||||||||||||||||||||
| Small Skipper | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 14 | 19 | 16 | 4 | . | . | . | . | . | . | . | ||
| Silver-spotted Skipper | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 7 | 1 | . | . | . | . | ||
| Large Skipper | . | . | . | . | . | . | . | 1 | . | 2 | 7 | 4 | 4 | 3 | . | 1 | . | . | . | . | . | . | . | . | ||
| Dingy Skipper | . | . | 3 | 3 | 7 | 19 | 3 | 4 | . | . | 2 | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | ||
| Grizzled Skipper | . | 1 | 4 | 14 | 22 | 14 | 5 | 4 | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||
| Brimstone | 5 | . | 1 | 3 | 7 | 1 | 3 | 5 | 4 | 7 | 6 | 5 | . | 3 | . | 1 | 6 | 8 | 2 | . | . | . | 3 | . | ||
| Large White | . | . | . | . | . | . | 1 | . | 1 | 1 | . | . | 1 | . | 1 | 3 | 4 | 3 | . | 1 | . | . | . | . | ||
| Small White | . | . | . | . | . | . | . | 1 | 2 | 1 | . | 1 | . | 4 | 3 | 11 | 26 | 14 | 15 | 18 | 8 | 4 | 2 | 1 | ||
| Green-veined White | . | . | . | 1 | 1 | . | . | . | 2 | 1 | . | . | 1 | . | 2 | 5 | 3 | 1 | . | . | . | . | . | . | ||
| Orange Tip | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||
| Green Hairstreak | . | . | 1 | . | 6 | . | 2 | 2 | . | 1 | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | ||
| Small Copper | . | . | . | . | 1 | 1 | . | 1 | . | . | . | . | . | 1 | 1 | 3 | 5 | 3 | 3 | 2 | 3 | 4 | 6 | 4 | ||
| Brown Argus | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 6 | 18 | 7 | 4 | 4 | 1 | 1 | 1 | ||
| Common Blue | . | . | . | . | . | 3 | 20 | 16 | 5 | 31 | 11 | 4 | 1 | . | 1 | 19 | 74 | 107 | 113 | 43 | 7 | 5 | 2 | . | ||
| Chalk-hill Blue | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 78 | 175 | 354 | 474 | 356 | 83 | 5 | . | . | . | ||
| Adonis Blue | . | . | . | . | . | . | 1 | 5 | 1 | 3 | 2 | 2 | . | . | . | . | . | . | 3 | 10 | 1 | 3 | . | . | ||
| Holly Blue | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | . | . | . | ||
| Duke of Burgundy Fritillary | . | . | . | . | 1 | . | 1 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||
| Red Admiral | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 3 | 2 | 4 | 1 | 1 | . | . | 3 | . | 1 | 1 | ||
| Painted Lady | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | 1 | . | . | 2 | . | . | . | . | . | ||
| Small Tortoiseshell | 1 | . | . | . | . | 1 | . | . | . | 2 | 3 | 2 | 1 | 4 | 2 | 4 | 5 | 3 | 7 | 3 | . | . | 1 | 1 | ||
| Peacock | 2 | . | 1 | 2 | . | . | 3 | . | . | . | . | . | . | . | 4 | 13 | 4 | 3 | . | 1 | . | . | 2 | 4 | ||
| Comma | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | 1 | 1 | . | ||
| Dark Green Fritillary | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 1 | 1 | . | . | . | . | . | . | ||
| Silver-washed Fritillary | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | ||
| Speckled Wood | . | 1 | 3 | 6 | 2 | 1 | 1 | 3 | 2 | 3 | 9 | 3 | 2 | 3 | . | 4 | 8 | 4 | 1 | 4 | 2 | 1 | 1 | 2 | ||
| Wall Brown | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | ||
| Marbled White | . | . | . | . | . | . | . | . | . | . | . | . | 10 | 35 | 21 | 9 | 6 | . | . | . | . | . | . | . | ||
| Gatekeeper/Hedge Brown | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 18 | 19 | 10 | 10 | 3 | 2 | . | . | . | . | ||
| Meadow Brown | . | . | . | . | . | . | . | . | . | 2 | 8 | 21 | 63 | 49 | 48 | 55 | 117 | 176 | 110 | 33 | 8 | 1 | . | . | ||
| Small Heath | . | . | . | . | . | . | 4 | 7 | 5 | 9 | 15 | 24 | 25 | 41 | 4 | 2 | 2 | 9 | 5 | 17 | 13 | 4 | 2 | 4 | ||
| Ringlet | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 7 | 4 | 1 | 1 | . | . | . | . | . | . | . | ||