
| 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 | . | . | . | . | . | . | . | . | . | . | . | 14 | 26 | 16 | 72 | 52 | 24 | 2 | . | . | . | . | ||||
| Large Skipper | . | . | . | . | . | . | . | 2 | . | 150 | 74 | 72 | 74 | 92 | 30 | . | . | . | . | . | . | . | ||||
| Dingy Skipper | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Brimstone | . | . | 14 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Large White | . | . | . | . | . | . | . | . | 2 | . | . | . | 2 | . | 18 | . | 10 | . | 26 | . | 4 | . | ||||
| Small White | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 6 | . | 18 | 2 | 2 | . | . | . | ||||
| Green-veined White | . | . | . | 2 | 2 | . | 4 | 2 | . | . | . | . | . | 6 | . | 2 | . | . | . | . | . | . | ||||
| Orange Tip | . | . | . | 4 | 8 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Green Hairstreak | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Small Copper | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 6 | . | . | . | . | . | ||||
| Common Blue | . | . | . | . | . | . | . | . | 2 | 8 | 2 | . | . | . | . | . | 4 | 6 | 8 | 12 | . | . | ||||
| Red Admiral | . | 6 | 2 | . | . | . | . | . | . | . | . | . | . | . | 6 | . | 6 | 16 | 8 | 10 | 18 | 12 | ||||
| Painted Lady | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | ||||
| Small Tortoiseshell | . | 12 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 62 | 128 | 96 | 38 | 20 | ||||
| Peacock | 20 | 4 | 14 | 10 | 22 | . | . | . | . | . | . | . | . | . | 22 | 56 | 230 | 34 | 26 | 4 | 6 | 2 | ||||
| Small Pearl-bordered Fritillary | . | . | . | . | . | . | . | . | 6 | 8 | . | . | 2 | . | . | . | . | . | . | . | . | . | ||||
| Silver-washed Fritillary | . | . | . | . | . | . | . | . | . | . | . | 18 | 32 | 10 | 18 | 4 | 14 | . | 4 | . | . | . | ||||
| Speckled Wood | . | . | 2 | 4 | 54 | 4 | 4 | 18 | 34 | 26 | 6 | 2 | . | . | 6 | 6 | 36 | 66 | 74 | 58 | 46 | 46 | ||||
| Marbled White | . | . | . | . | . | . | . | . | . | . | 4 | 150 | 374 | 178 | 58 | 36 | 2 | . | . | . | . | . | ||||
| Gatekeeper/Hedge Brown | . | . | . | . | . | . | . | . | . | . | . | 10 | 24 | 62 | 290 | 246 | 334 | 28 | 8 | 10 | . | . | ||||
| Meadow Brown | . | . | . | . | . | . | . | . | . | 66 | 34 | 80 | 262 | 74 | 146 | 226 | 138 | 14 | 8 | 16 | 2 | . | ||||
| Small Heath | . | . | . | . | . | . | 2 | 4 | 6 | 2 | . | 6 | 2 | . | 2 | . | . | . | . | 2 | . | . | ||||
| Ringlet | . | . | . | . | . | . | . | . | . | 126 | 132 | 496 | 558 | 200 | 78 | . | 6 | . | . | . | . | . | ||||