
| 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 | 83 | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | 5 | 22 | 15 | 13 | 22 | 2 | . | . | . | ||||
| Large Skipper | 33 | . | . | . | . | . | . | . | . | . | 2 | 11 | 7 | 1 | 7 | 4 | . | . | . | . | . | . | . | ||||
| Grizzled Skipper | 4 | . | . | . | . | 1 | 2 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Clouded Yellow | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | ||||
| Brimstone | 165 | 22 | 5 | 3 | 5 | 7 | 7 | 11 | 5 | 3 | 2 | 4 | . | . | . | . | 6 | 14 | 29 | 18 | 8 | 8 | 6 | ||||
| Large White | 20 | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | . | 2 | 2 | 3 | 5 | 1 | 2 | 2 | . | ||||
| Small White | 49 | . | 3 | 1 | 7 | 1 | 5 | 8 | . | 1 | . | . | . | 1 | . | 3 | . | 1 | 5 | 6 | 2 | 5 | . | ||||
| Green-veined White | 45 | . | . | . | 2 | . | 6 | 8 | . | 1 | . | . | . | 1 | . | . | 1 | 4 | 3 | 6 | 2 | 7 | 4 | ||||
| Orange Tip | 13 | . | . | . | 3 | 2 | 4 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Purple Hairstreak | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | 1 | . | ||||
| Small Copper | 5 | . | . | . | . | . | 1 | . | . | 2 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | ||||
| Common Blue | 14 | . | . | . | . | . | 3 | . | . | . | . | 1 | . | . | . | . | . | . | . | 1 | 8 | 1 | . | ||||
| Holly Blue | 6 | . | . | . | 2 | . | . | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | 2 | . | . | ||||
| White Admiral | 8 | . | . | . | . | . | . | . | . | . | . | 1 | 4 | . | 2 | 1 | . | . | . | . | . | . | . | ||||
| Red Admiral | 18 | 1 | . | . | . | . | . | 1 | . | . | . | . | 2 | . | . | . | . | . | . | 5 | 2 | 5 | 2 | ||||
| Painted Lady | 4 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | 1 | . | 1 | 1 | . | . | ||||
| Small Tortoiseshell | 69 | 1 | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | 3 | 36 | 18 | 9 | ||||
| Peacock | 146 | 17 | 11 | 5 | 18 | 6 | 10 | 5 | 1 | 2 | . | . | . | . | . | 1 | 2 | 7 | 13 | 24 | 12 | 7 | 4 | ||||
| Comma | 8 | 2 | 1 | . | . | . | 1 | . | . | . | . | . | . | . | 1 | . | . | . | 1 | . | . | . | 2 | ||||
| Small Pearl-bordered Fritillary | 7 | . | . | . | . | . | . | . | . | . | 4 | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||
| Pearl-bordered Fritillary | 75 | . | . | . | . | 11 | 10 | 31 | 17 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Dark Green Fritillary | 2 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 1 | . | . | . | . | . | ||||
| Silver-washed Fritillary | 152 | . | . | . | . | . | . | . | . | . | . | 1 | 14 | 19 | 24 | 19 | 12 | 12 | 32 | 13 | 6 | . | . | ||||
| Speckled Wood | 235 | 1 | 1 | 1 | 2 | 3 | 4 | 5 | 9 | 3 | 20 | 2 | . | . | . | . | 2 | 8 | 6 | 8 | 28 | 53 | 67 | ||||
| Marbled White | 13 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 4 | 3 | 1 | 1 | 1 | . | . | . | . | ||||
| Gatekeeper / Hedge Brown | 338 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 5 | 44 | 61 | 118 | 76 | 32 | 2 | . | ||||
| Meadow Brown | 214 | . | . | . | . | . | . | . | . | . | 1 | . | 14 | 44 | 28 | 29 | 30 | 20 | 32 | 10 | 3 | 3 | . | ||||
| Ringlet | 326 | . | . | . | . | . | . | . | . | . | . | 10 | 71 | 91 | 59 | 73 | 11 | 3 | 8 | . | . | . | . | ||||
| Six-spot Burnet | NI | . | . | . | . | . | . | . | . | . | . | 10 | 4 | . | 1 | . | . | 1 | . | . | . | . | . | ||||
| Five-spot Burnet | NI | . | . | . | . | . | . | . | . | . | . | . | . | 15 | 1 | . | . | . | 1 | . | . | . | . | ||||
| Argent & Sable | NI | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Speckled Yellow | NI | . | . | . | . | . | . | 39 | 9 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Silver Y | NI | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | 1 | 2 | 1 | 11 | 2 | . | 1 | 1 | ||||
| The Cinnabar | NI | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||