
| 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 | 186 | . | . | . | . | . | . | . | . | . | 1 | 10 | 46 | 50 | 70 | 3 | 6 | 6 | . | . | |||||||
| Large Skipper | 32 | . | . | . | . | . | . | . | 2 | 11 | 8 | . | 3 | 6 | . | . | . | 1 | . | . | |||||||
| Dingy Skipper | 30 | . | . | 3 | 12 | 9 | 5 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Grizzled Skipper | 46 | . | . | 1 | 7 | 8 | 14 | 2 | . | 5 | 4 | . | . | . | . | . | . | . | . | . | |||||||
| Brimstone | 130 | . | 3 | 10 | 43 | 13 | 9 | 3 | 3 | 4 | . | 2 | 4 | 8 | 14 | . | 1 | 19 | 9 | 4 | |||||||
| Large White | 71 | . | . | . | 2 | . | 1 | 2 | . | 1 | . | 5 | 3 | 44 | 6 | 2 | 2 | 10 | . | 6 | |||||||
| Small White | 211 | . | . | . | 6 | . | 2 | . | 4 | 1 | 1 | . | 3 | 8 | . | 14 | 13 | 55 | . | 51 | |||||||
| Green-veined White | 61 | . | . | . | 4 | 1 | . | 3 | . | . | . | . | 5 | . | 6 | 5 | 11 | 4 | 1 | 6 | |||||||
| Orange Tip | 34 | . | 2 | 7 | 17 | 5 | 2 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Green Hairstreak | 13 | . | . | 1 | 5 | 4 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 75 | . | . | 1 | 2 | 1 | 4 | 4 | . | 2 | . | . | 1 | . | 1 | 6 | 11 | 13 | 5 | 13 | |||||||
| Brown Argus | 101 | . | . | . | 1 | 2 | 10 | . | . | 3 | . | . | . | . | 2 | 2 | 34 | 22 | 16 | 9 | |||||||
| Common Blue | 293 | . | . | . | 5 | 3 | 22 | 10 | 7 | 23 | 17 | 12 | 5 | 6 | 2 | 24 | 64 | 56 | 32 | 15 | |||||||
| Chalk-hill Blue | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | 1 | . | . | |||||||
| Adonis Blue | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | 2 | . | |||||||
| Holly Blue | 15 | . | . | 5 | 2 | 2 | . | 1 | . | . | . | . | . | . | 3 | . | . | . | . | . | |||||||
| Duke of Burgundy Fritillary | 1 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| White Admiral | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||||
| Red Admiral | 50 | . | . | . | . | . | . | . | . | 2 | 1 | . | 7 | 4 | 4 | 1 | 7 | 26 | 2 | 6 | |||||||
| Painted Lady | 3 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | 1 | 1 | . | |||||||
| Small Tortoiseshell | 53 | . | 2 | 1 | . | 1 | . | . | . | 2 | . | 8 | 8 | 1 | 5 | 2 | 15 | 5 | 3 | 2 | |||||||
| Peacock | 149 | 7 | . | 7 | 12 | 3 | 10 | 1 | . | . | . | . | . | 19 | 36 | 1 | 11 | 8 | 8 | 12 | |||||||
| Comma | 33 | 1 | . | 1 | . | 1 | . | . | . | . | . | . | 4 | . | 4 | . | 2 | 10 | 1 | 8 | |||||||
| Pearl-bordered Fritillary | 50 | . | . | 9 | 22 | 7 | 8 | 5 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Dark Green Fritillary | 7 | . | . | . | . | . | . | . | . | . | . | 2 | 4 | . | . | . | . | 1 | . | . | |||||||
| Silver-washed Fritillary | 53 | . | . | . | . | . | . | . | . | . | . | . | 10 | 30 | 12 | 5 | 1 | 5 | 1 | . | |||||||
| Speckled Wood | 92 | 1 | . | 5 | 6 | 1 | 5 | 1 | . | 2 | 1 | . | 1 | 6 | 2 | 14 | 19 | 25 | 2 | 6 | |||||||
| Marbled White | 235 | . | . | . | . | . | . | . | . | . | . | 20 | 72 | 59 | 84 | . | 1 | . | . | . | |||||||
| Grayling | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | |||||||
| Gatekeeper / Hedge Brown | 101 | . | . | . | . | . | . | . | . | . | . | 12 | . | 1 | 30 | 20 | 16 | 6 | . | 1 | |||||||
| Meadow Brown | 332 | . | . | . | . | . | . | . | . | 7 | 10 | 63 | 70 | 44 | 72 | 10 | 33 | 19 | 4 | 4 | |||||||
| Small Heath | 6 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | 3 | 1 | 1 | |||||||
| Ringlet | 385 | . | . | . | . | . | . | . | . | . | 1 | 32 | 76 | 218 | 107 | 2 | . | . | . | . | |||||||