
| 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 | 43 | . | . | . | . | . | . | . | . | . | 16 | 14 | 5 | 7 | 1 | . | . | . | . | . | . | ||||||
| Large Skipper | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | 15 | . | . | . | 3 | 2 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Grizzled Skipper | 9 | 2 | . | . | 3 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | 14 | . | 3 | 4 | 1 | 2 | . | 1 | . | . | . | . | . | 1 | . | 2 | . | . | . | . | . | ||||||
| Large White | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | ||||||
| Small White | 148 | . | . | . | . | . | 1 | . | . | . | . | 6 | 5 | 6 | 10 | 12 | 22 | 16 | 14 | . | 2 | ||||||
| Green-veined White | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | 2 | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 9 | . | . | . | . | . | . | . | . | . | 1 | . | 1 | 2 | 1 | . | . | 1 | . | 1 | 1 | ||||||
| Small Blue | 19 | . | . | . | . | 10 | 4 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | ||||||
| Brown Argus | 55 | . | . | . | 2 | 18 | 7 | 1 | . | . | . | . | 2 | 4 | 6 | . | 9 | 6 | . | . | . | ||||||
| Common Blue | 251 | . | . | . | . | 53 | 46 | 10 | 2 | 1 | . | . | 6 | 11 | 23 | 21 | 18 | 11 | 13 | 3 | . | ||||||
| Chalk-hill Blue | 226 | . | . | . | . | . | . | . | . | . | . | 1 | 18 | 68 | 59 | 50 | 16 | 16 | 3 | . | . | ||||||
| Adonis Blue | 247 | . | . | . | 1 | 18 | 45 | 2 | . | . | . | . | . | . | 1 | 11 | 46 | 67 | 25 | 7 | . | ||||||
| Holly Blue | 2 | . | . | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | ||||||
| Painted Lady | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||||
| Small Tortoiseshell | 13 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | 2 | 4 | . | 3 | 1 | 2 | . | ||||||
| Peacock | 2 | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | ||||||
| Dark Green Fritillary | 108 | . | . | . | . | . | . | . | . | 11 | 28 | 37 | 18 | 12 | 2 | . | . | . | . | . | . | ||||||
| Marsh Fritillary | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Marbled White | 77 | . | . | . | . | . | . | . | 2 | 8 | 21 | 34 | 11 | 1 | . | . | . | . | . | . | . | ||||||
| Meadow Brown | 1199 | . | . | . | . | . | . | 1 | 3 | 19 | 35 | 138 | 240 | 177 | 213 | 149 | 77 | 66 | 43 | 15 | 8 | ||||||
| Small Heath | 496 | . | . | . | . | 14 | 40 | 14 | 37 | 60 | 72 | 56 | 20 | 9 | 3 | 7 | 22 | 33 | 40 | 33 | 15 | ||||||
| Ringlet | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | ||||||
| The Forester | NI | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Six-spot Burnet | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | 17 | 3 | . | . | . | . | . | ||||||
| Silver Y | NI | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | ||||||