
| 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 | 47 | . | . | . | . | . | . | . | 3 | 5 | 15 | 15 | 6 | 2 | 1 | . | . | . | . | . | . | ||||||
| Large Skipper | 37 | . | . | . | . | . | . | 18 | 6 | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | NI | . | . | . | 1 | 7 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Grizzled Skipper | NI | . | 1 | 2 | 5 | 1 | 2 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Clouded Yellow | 2 | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | ||||||
| Brimstone | 130 | . | 7 | 9 | 14 | 12 | . | 8 | . | 2 | 6 | 6 | 9 | 9 | . | 3 | 2 | 2 | 2 | 2 | 1 | ||||||
| Large White | 232 | . | . | . | 3 | . | . | . | . | . | 5 | 34 | 34 | 78 | 23 | 9 | 10 | 1 | 2 | 1 | 1 | ||||||
| Small White | 382 | . | . | 8 | 9 | 5 | . | 7 | . | 1 | 12 | 27 | 57 | 95 | 32 | 20 | 19 | 14 | 10 | 3 | 2 | ||||||
| Green-veined White | 11 | . | 3 | 1 | . | . | . | . | . | . | . | . | . | 1 | . | 1 | 2 | 2 | . | . | . | ||||||
| Orange Tip | NI | . | . | 3 | 7 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | 13 | . | . | . | . | 1 | 1 | 6 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 9 | . | . | . | . | 1 | . | . | . | . | . | . | 1 | 2 | 1 | . | . | 2 | . | . | . | ||||||
| Small Blue | 61 | . | . | . | . | 6 | 8 | 24 | 2 | . | . | . | 1 | . | . | . | . | . | . | . | . | ||||||
| Brown Argus | 28 | . | . | . | . | 2 | 9 | 3 | 1 | . | . | 1 | 2 | 2 | 2 | 1 | . | . | . | . | . | ||||||
| Common Blue | 547 | . | . | . | . | 2 | 9 | 29 | 22 | 10 | 13 | 2 | 46 | 188 | 31 | 37 | 43 | 9 | 8 | 2 | . | ||||||
| Chalk-hill Blue | 30 | . | . | . | . | . | . | . | . | . | . | . | 1 | 6 | 6 | 6 | 4 | 1 | . | . | . | ||||||
| Adonis Blue | 128 | . | . | . | . | 24 | 32 | 14 | . | . | . | . | . | 1 | 4 | 8 | 6 | 2 | 1 | . | . | ||||||
| Red Admiral | 61 | . | . | . | . | . | . | . | . | . | 2 | 2 | 23 | 12 | 2 | . | 3 | 5 | 4 | 2 | . | ||||||
| Painted Lady | 17 | . | . | . | . | . | . | 3 | . | . | . | . | 3 | 6 | . | 1 | . | . | . | . | . | ||||||
| Small Tortoiseshell | 21 | 4 | 8 | 1 | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | ||||||
| Peacock | 80 | 2 | 13 | . | 3 | . | . | . | . | 1 | 2 | 7 | 22 | 8 | . | 1 | 2 | 3 | 3 | 2 | . | ||||||
| Comma | 12 | . | . | . | . | . | . | . | . | 1 | 2 | 1 | 1 | 3 | 1 | 1 | 1 | . | . | . | . | ||||||
| Dark Green Fritillary | 15 | . | . | . | . | . | . | . | 2 | . | 1 | 1 | 5 | 4 | . | . | . | . | . | . | . | ||||||
| Marsh Fritillary | 2 | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Speckled Wood | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Marbled White | 528 | . | . | . | . | . | 1 | 14 | 93 | 164 | 162 | 55 | 15 | . | . | . | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 61 | . | . | . | . | . | . | . | . | 4 | 17 | 13 | 12 | 13 | . | . | . | . | . | . | . | ||||||
| Meadow Brown | 497 | . | . | . | . | . | 1 | 1 | 55 | 82 | 113 | 95 | 55 | 58 | 12 | . | . | . | . | . | . | ||||||
| Small Heath | 24 | . | . | . | . | 2 | 4 | 7 | 1 | . | 2 | . | . | . | 1 | . | . | . | . | . | . | ||||||
| Ringlet | 24 | . | . | . | . | . | . | . | 3 | 6 | 7 | 2 | 4 | 1 | . | . | . | . | . | . | . | ||||||