
| 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 | 3 | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | ||||||||
| Large Skipper | 7 | . | . | . | . | . | . | . | . | 2 | 2 | . | . | 1 | . | . | . | . | . | ||||||||
| Brimstone | 83 | 2 | 8 | 6 | 9 | 3 | 4 | . | . | . | . | 12 | 33 | 5 | . | . | . | . | 4 | ||||||||
| Large White | 94 | . | . | . | 5 | . | 3 | 3 | . | . | 14 | 20 | 16 | 16 | 1 | 2 | . | . | 1 | ||||||||
| Small White | 97 | . | . | . | . | . | . | . | 2 | 3 | . | 6 | 15 | 35 | 2 | 2 | . | 3 | 2 | ||||||||
| Green-veined White | 101 | . | . | . | 1 | 12 | . | 1 | 3 | 1 | 5 | 30 | 40 | 1 | . | . | 2 | . | . | ||||||||
| Orange Tip | 33 | . | 3 | 5 | 6 | 13 | 1 | 4 | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Purple Hairstreak | 3 | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | ||||||||
| Small Copper | 35 | . | . | . | . | . | . | . | . | . | 2 | . | . | 3 | 2 | . | 15 | 4 | 1 | ||||||||
| Common Blue | 17 | . | . | . | . | . | . | . | . | . | . | 1 | . | 7 | . | . | . | . | . | ||||||||
| White Admiral | 7 | . | . | . | . | . | . | . | . | 3 | 2 | . | . | . | . | . | . | . | . | ||||||||
| Red Admiral | 40 | . | 2 | . | . | . | . | . | . | 3 | 11 | 3 | 1 | 1 | . | . | 6 | 1 | 2 | ||||||||
| Small Tortoiseshell | 26 | 2 | . | . | . | . | . | . | . | 1 | 1 | 1 | 1 | 6 | 2 | 1 | 1 | . | 3 | ||||||||
| Peacock | 90 | 16 | 3 | 3 | 7 | . | . | . | . | . | 2 | 20 | 36 | 2 | . | . | . | . | . | ||||||||
| Comma | 33 | 5 | . | . | . | . | . | . | . | 3 | 5 | 3 | . | . | . | . | 9 | . | . | ||||||||
| Silver-washed Fritillary | 19 | . | . | . | . | . | . | . | . | . | 4 | 3 | 8 | 2 | . | 1 | . | . | . | ||||||||
| Speckled Wood | 128 | . | . | 2 | 1 | 4 | . | 18 | 3 | . | 1 | . | 11 | 22 | 7 | 9 | 33 | 7 | 12 | ||||||||
| Gatekeeper / Hedge Brown | 90 | . | . | . | . | . | . | . | . | . | 15 | 29 | 21 | 17 | . | . | . | . | . | ||||||||
| Meadow Brown | 539 | . | . | . | . | . | . | 1 | . | 79 | 144 | 60 | 74 | 18 | 1 | 1 | 1 | . | . | ||||||||
| Ringlet | 13 | . | . | . | . | . | . | . | 1 | . | 1 | 7 | . | . | . | . | . | . | . | ||||||||