
| 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 | 20 | . | . | . | . | . | . | . | . | . | 2 | . | . | 2 | . | . | . | 3 | . | 7 | 2 | . | |||||
| Large Skipper | 13 | . | . | . | . | . | . | . | 3 | 2 | 6 | 2 | . | . | . | 1 | . | . | . | . | . | . | |||||
| Dingy Skipper | 4 | . | . | . | . | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Grizzled Skipper | 2 | . | . | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brimstone | 201 | 6 | 11 | 9 | 11 | 3 | 15 | 13 | 2 | . | 2 | . | . | 3 | 5 | 33 | 15 | 16 | . | 3 | . | . | |||||
| Large White | 152 | . | . | . | . | . | 11 | 4 | . | 2 | 3 | 5 | . | 6 | 5 | 27 | 37 | 24 | 20 | 13 | 8 | . | |||||
| Small White | 185 | . | . | . | . | 3 | 3 | 5 | 7 | . | 1 | 2 | 1 | 7 | 3 | 33 | 28 | 48 | 17 | 21 | 10 | 2 | |||||
| Green-veined White | 29 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 10 | 7 | 2 | 4 | . | 2 | . | . | |||||
| Orange Tip | 26 | 1 | 7 | 2 | 10 | 4 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Green Hairstreak | 4 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | 40 | . | . | . | . | . | 1 | . | 1 | . | . | . | . | 13 | . | 16 | . | 5 | . | 2 | 2 | . | |||||
| Common Blue | 12 | . | . | . | . | . | . | . | 2 | 2 | . | . | . | 2 | . | . | . | . | 3 | . | . | . | |||||
| Chalk-hill Blue | 6 | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | 1 | 1 | . | . | 5 | . | . | |||||
| Holly Blue | 3 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 2 | . | . | . | . | |||||
| Red Admiral | 5 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | 2 | 1 | . | . | . | . | . | |||||
| Painted Lady | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | |||||
| Small Tortoiseshell | 10 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 1 | 1 | |||||
| Peacock | 53 | 1 | 1 | 3 | . | . | . | 1 | . | . | . | . | . | . | 1 | 23 | 22 | 10 | . | . | . | 1 | |||||
| Comma | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | |||||
| Silver-washed Fritillary | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||
| Speckled Wood | 42 | . | . | . | 1 | 2 | 2 | 6 | . | 3 | 3 | 2 | 1 | . | 1 | 4 | 5 | 2 | 1 | 6 | . | . | |||||
| Marbled White | 40 | . | . | . | . | . | . | . | . | . | 3 | 20 | 1 | 10 | 3 | 2 | . | . | . | 1 | . | . | |||||
| Gatekeeper / Hedge Brown | 257 | . | . | . | . | . | . | . | 2 | 2 | . | 4 | 4 | 17 | 23 | 78 | 20 | 58 | 3 | 35 | 6 | . | |||||
| Meadow Brown | 261 | . | . | . | . | . | . | . | 1 | 2 | 19 | 24 | 25 | 13 | 37 | 9 | 84 | 5 | 39 | . | 5 | . | |||||
| Small Heath | 3 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | |||||
| Ringlet | 61 | . | . | . | . | . | . | . | . | . | 7 | 10 | 14 | 10 | 19 | . | . | . | . | . | . | . | |||||