
| 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 | 123 | . | . | . | . | . | . | . | . | . | 12 | 5 | 44 | 11 | 6 | 1 | . | . | . | ||||||||
| Large Skipper | 20 | . | . | . | . | . | . | . | . | 3 | 2 | 2 | 2 | 6 | 1 | . | . | . | . | ||||||||
| Dingy Skipper | 21 | . | . | . | 5 | 5 | 6 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | ||||||||
| Grizzled Skipper | 30 | . | 1 | 3 | 3 | 2 | 5 | 3 | 5 | . | . | . | . | . | . | . | . | . | . | ||||||||
| Brimstone | 183 | 2 | 10 | . | 20 | 28 | 28 | 18 | 14 | 1 | . | . | 1 | 3 | 10 | 1 | 1 | 1 | . | ||||||||
| Large White | 58 | . | . | . | . | . | 1 | . | . | . | 2 | 2 | 3 | 6 | 10 | 8 | . | 2 | 2 | ||||||||
| Small White | 120 | . | . | 2 | . | 10 | 2 | 3 | 2 | . | . | . | 10 | 16 | 21 | 7 | 14 | 9 | 1 | ||||||||
| Green-veined White | 9 | . | . | . | . | . | . | 1 | . | . | . | . | 2 | . | . | . | . | . | . | ||||||||
| Orange Tip | 22 | . | 1 | 3 | 2 | 2 | 6 | . | 2 | . | . | . | . | . | . | . | . | . | . | ||||||||
| Green Hairstreak | 3 | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Small Copper | 22 | . | . | . | . | . | 4 | 1 | 2 | . | 1 | . | 2 | 1 | 1 | 2 | 1 | 1 | 3 | ||||||||
| Small Blue | 37 | . | . | . | . | 2 | 5 | 14 | 7 | . | . | . | . | 2 | . | . | . | . | . | ||||||||
| Brown Argus | 43 | . | . | . | . | 2 | 10 | 8 | 9 | . | . | . | . | . | 7 | 1 | . | 1 | . | ||||||||
| Common Blue | 225 | . | . | . | . | 10 | 37 | 59 | 30 | 6 | 1 | 2 | 1 | 5 | 20 | 13 | 1 | 3 | . | ||||||||
| Chalk-hill Blue | 23 | . | . | . | . | . | . | . | . | . | . | . | 1 | 7 | 7 | 4 | 1 | . | . | ||||||||
| Adonis Blue | 54 | . | . | . | . | 1 | 10 | . | 10 | . | . | . | . | . | . | 3 | 6 | 3 | . | ||||||||
| Holly Blue | 7 | . | . | 2 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Red Admiral | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | ||||||||
| Small Tortoiseshell | 84 | . | . | . | . | 1 | . | . | . | 1 | 1 | 3 | 1 | . | 6 | 20 | 16 | 15 | . | ||||||||
| Peacock | 65 | 10 | 18 | 2 | 4 | 3 | 2 | . | . | . | . | . | 9 | 2 | 7 | 1 | . | . | . | ||||||||
| Dark Green Fritillary | 125 | . | . | . | . | . | . | . | . | 1 | 31 | 35 | 13 | 16 | 5 | 2 | . | . | . | ||||||||
| Silver-washed Fritillary | 36 | . | . | . | . | . | . | . | . | . | 6 | 3 | 6 | 2 | 1 | . | . | . | . | ||||||||
| Speckled Wood | 19 | . | . | . | . | . | 2 | 5 | 1 | 1 | 1 | . | . | . | 2 | 1 | 1 | . | . | ||||||||
| Marbled White | 343 | . | . | . | . | . | . | . | . | 11 | 55 | 106 | 44 | 30 | 1 | . | . | . | . | ||||||||
| Gatekeeper / Hedge Brown | 227 | . | . | . | . | . | . | . | . | . | . | . | 78 | 40 | 50 | 3 | . | . | . | ||||||||
| Meadow Brown | 825 | . | . | . | . | . | . | . | . | 20 | 50 | 81 | 51 | 98 | 145 | 104 | 41 | 35 | 4 | ||||||||
| Small Heath | 262 | . | . | . | . | 6 | 20 | 21 | 26 | 29 | 19 | 11 | 12 | 3 | 2 | 12 | 10 | 12 | 2 | ||||||||
| Ringlet | 89 | . | . | . | . | . | . | . | . | 4 | 13 | 13 | 19 | 2 | . | . | . | . | . | ||||||||