
| 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 | 207 | . | . | . | . | . | . | 2 | 6 | 13 | 38 | 91 | 20 | 31 | 7 | 3 | . | . | . | ||||||||
| Large Skipper | 251 | . | . | . | . | 10 | 16 | 28 | 70 | 63 | 20 | 2 | 1 | . | 3 | . | . | . | . | ||||||||
| Clouded Yellow | 2 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | ||||||||
| Brimstone | 226 | 11 | 23 | 14 | 7 | 7 | 11 | 7 | 2 | . | . | 10 | 3 | 63 | 13 | 5 | 8 | 14 | 4 | ||||||||
| Large White | 37 | . | . | 1 | 2 | . | . | . | . | . | 5 | 9 | 18 | . | . | . | . | . | . | ||||||||
| Small White | 55 | . | . | . | 5 | . | 3 | . | . | . | 1 | 19 | 5 | 13 | 6 | 3 | . | . | . | ||||||||
| Green-veined White | 5 | . | . | . | . | . | . | . | . | 2 | 1 | 1 | . | . | . | . | . | . | . | ||||||||
| Orange Tip | 17 | . | 5 | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Small Copper | 3 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 2 | . | . | . | . | ||||||||
| Brown Argus | 7 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 2 | 1 | . | . | . | ||||||||
| Common Blue | 124 | . | . | . | 5 | 2 | 1 | 1 | 5 | 3 | 2 | 5 | 35 | 31 | 18 | 13 | 1 | . | . | ||||||||
| Holly Blue | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| White Admiral | 19 | . | . | . | . | . | . | . | 2 | 9 | 5 | 3 | . | . | . | . | . | . | . | ||||||||
| Red Admiral | 59 | . | . | . | 1 | 1 | . | 1 | 2 | 2 | 1 | . | 2 | 59 | 7 | 6 | . | . | . | ||||||||
| Painted Lady | 236 | . | . | 1 | 6 | 3 | 4 | 2 | 1 | . | 15 | 90 | 87 | 14 | 12 | . | . | . | 1 | ||||||||
| Small Tortoiseshell | 9 | . | . | . | 5 | . | . | . | . | . | 1 | . | . | . | 1 | . | . | . | . | ||||||||
| Peacock | 185 | 11 | . | . | 3 | . | . | . | . | . | 4 | 36 | 49 | 63 | 19 | 4 | 1 | 1 | . | ||||||||
| Comma | 1 | 3 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||||||
| Small Pearl-bordered Fritillary | 5 | . | . | . | . | 3 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Pearl-bordered Fritillary | 1 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Dark Green Fritillary | 4 | . | . | . | . | . | . | . | . | 1 | 3 | . | . | . | . | . | . | . | . | ||||||||
| Silver-washed Fritillary | 315 | . | . | . | . | . | . | . | 41 | 58 | 55 | 55 | 10 | 54 | 20 | 10 | . | . | . | ||||||||
| Speckled Wood | 200 | . | 6 | 3 | 10 | 5 | 13 | 11 | 5 | . | 1 | 5 | 7 | 3 | 20 | 21 | 43 | 12 | 20 | ||||||||
| Marbled White | 153 | . | . | . | . | . | . | . | 22 | 47 | 51 | 16 | . | 1 | . | . | . | . | . | ||||||||
| Gatekeeper / Hedge Brown | 609 | . | . | . | . | . | . | . | . | 5 | 80 | 207 | 140 | 121 | 51 | 5 | . | . | . | ||||||||
| Meadow Brown | 386 | . | . | . | . | 1 | 1 | 9 | 73 | 100 | 18 | 65 | 37 | 16 | 12 | 4 | . | . | . | ||||||||
| Ringlet | 611 | . | . | . | . | . | . | . | 63 | 87 | 340 | 54 | 12 | 12 | 4 | . | . | . | . | ||||||||