
| 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 | 97 | . | . | . | . | . | . | . | . | . | . | . | 4 | 10 | 16 | 23 | 20 | 6 | . | . | . | . | . | ||||
| Large Skipper | 93 | . | . | . | . | . | . | . | . | 1 | 23 | 2 | 32 | 2 | 7 | 3 | 3 | 2 | . | . | . | . | . | ||||
| Dingy Skipper | 24 | . | . | . | . | 4 | 2 | 4 | 6 | 5 | 3 | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||
| Grizzled Skipper | 22 | . | . | 1 | 8 | 3 | . | 3 | 1 | 3 | 1 | . | 2 | . | . | . | . | . | . | . | . | . | . | ||||
| Brimstone | 108 | 8 | . | . | 3 | 15 | . | 16 | 8 | 8 | 1 | 5 | . | 1 | 2 | . | 2 | 11 | . | 3 | . | 1 | 3 | ||||
| Large White | 29 | . | . | . | . | 1 | . | . | 2 | . | . | . | . | . | 1 | 1 | 8 | 1 | 1 | 5 | 1 | . | 2 | ||||
| Small White | 232 | 1 | . | . | . | 1 | . | 1 | . | 2 | 2 | . | . | . | 2 | 2 | 28 | 9 | 27 | 57 | 69 | 15 | . | ||||
| Green-veined White | 91 | . | 1 | . | 5 | 4 | 1 | 2 | 5 | 4 | 1 | 1 | . | . | . | 15 | 7 | 16 | 5 | 4 | 4 | 3 | . | ||||
| Orange Tip | 19 | 2 | . | . | 1 | 1 | . | 2 | 2 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Green Hairstreak | 4 | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Small Copper | 12 | . | . | . | 2 | 1 | . | 1 | 2 | . | . | . | . | . | . | . | 1 | . | 1 | . | 1 | 1 | . | ||||
| Brown Argus | 27 | . | . | . | 1 | . | . | 3 | 3 | 10 | 1 | . | 1 | . | . | . | . | . | . | 7 | 4 | . | . | ||||
| Common Blue | 111 | . | . | . | . | . | 3 | 7 | 5 | 12 | 15 | 12 | 7 | 1 | . | . | 3 | 18 | 9 | 5 | 4 | . | . | ||||
| Chalk-hill Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | ||||
| Adonis Blue | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Holly Blue | 8 | . | . | . | 1 | 3 | . | . | 1 | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | ||||
| White Admiral | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | ||||
| Red Admiral | 19 | . | . | . | . | . | . | 1 | . | . | 1 | . | . | . | 1 | 1 | 1 | 2 | 2 | 1 | 3 | . | 3 | ||||
| Small Tortoiseshell | 103 | 1 | 1 | 2 | . | . | 1 | . | . | . | . | 4 | 6 | 2 | 4 | 5 | . | 2 | 20 | 17 | 26 | 6 | . | ||||
| Peacock | 130 | 8 | 14 | 2 | 2 | 19 | 4 | 9 | 6 | 5 | . | . | . | . | . | 4 | 16 | 12 | 15 | 1 | . | 1 | . | ||||
| Comma | 9 | 1 | . | . | . | . | . | 1 | . | . | . | . | . | 1 | 1 | 1 | 1 | . | . | . | 1 | . | 2 | ||||
| Small Pearl-bordered Fritillary | NI | . | . | . | . | . | . | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Pearl-bordered Fritillary | 21 | . | . | . | 8 | 1 | . | . | 4 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Dark Green Fritillary | 15 | . | . | . | . | . | . | . | . | . | 3 | 2 | 4 | . | 1 | . | 3 | . | . | . | . | . | . | ||||
| Silver-washed Fritillary | 129 | . | . | . | . | . | . | . | . | . | . | . | 10 | 4 | 26 | 29 | 21 | 11 | 4 | 2 | . | . | . | ||||
| Speckled Wood | 118 | 1 | 2 | 5 | 1 | 1 | 1 | . | 2 | 6 | 16 | 4 | 15 | 4 | 1 | . | . | 2 | 4 | 15 | 20 | 1 | 3 | ||||
| Marbled White | 225 | . | . | . | . | . | . | . | . | . | . | . | 5 | 34 | 88 | 62 | 16 | . | . | . | . | . | . | ||||
| Gatekeeper / Hedge Brown | 163 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 25 | 60 | 12 | 17 | 2 | . | . | . | ||||
| Meadow Brown | 477 | . | . | . | . | . | . | . | . | . | 2 | 6 | 45 | 40 | 66 | 66 | 69 | 64 | 39 | 29 | 13 | 1 | 1 | ||||
| Small Heath | 4 | . | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | 1 | . | . | . | . | . | ||||
| Ringlet | 611 | . | . | . | . | . | . | . | . | . | . | . | 28 | 88 | 163 | 142 | 93 | 1 | . | . | . | . | . | ||||