
| 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 | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 19 | 3 | 2 | . | |||||||
| Large Skipper | 120 | . | . | . | . | . | . | . | . | . | 2 | 12 | 19 | 28 | 23 | 18 | 3 | . | . | . | |||||||
| Grizzled Skipper | 4 | . | . | . | 1 | 1 | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Wood White | 118 | . | . | . | . | 1 | 2 | 6 | 10 | 15 | 6 | 22 | 21 | 13 | 3 | 3 | 2 | . | . | . | |||||||
| Brimstone | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Large White | 39 | . | . | 2 | 1 | 1 | 2 | 1 | 3 | 2 | . | 2 | . | . | . | 3 | 5 | 4 | . | . | |||||||
| Small White | NI | . | . | 1 | . | . | . | 1 | . | 2 | . | . | . | . | . | . | 6 | 2 | 1 | . | |||||||
| Green-veined White | 217 | . | . | 3 | 5 | 5 | 9 | 22 | 18 | 15 | 1 | 3 | 1 | 1 | 1 | 9 | 30 | 16 | 4 | . | |||||||
| Orange Tip | 32 | . | . | 10 | 7 | 6 | 6 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Purple Hairstreak | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 4 | 1 | . | . | |||||||
| Common Blue | NI | . | . | . | . | . | . | . | . | 1 | 2 | 2 | 1 | 2 | . | 1 | 5 | 23 | 11 | 11 | |||||||
| Holly Blue | 14 | . | . | 2 | 1 | 1 | 2 | 2 | 1 | . | . | . | 1 | . | . | . | 1 | 1 | . | . | |||||||
| White Admiral | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | |||||||
| Red Admiral | 3 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 2 | . | |||||||
| Painted Lady | 7 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 6 | . | . | |||||||
| Small Tortoiseshell | 14 | 1 | 1 | 2 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | 6 | 1 | 2 | |||||||
| Peacock | 82 | 19 | 1 | 10 | 3 | 4 | 4 | 1 | 1 | . | . | . | . | . | . | . | . | 19 | . | . | |||||||
| Comma | 12 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | 2 | 3 | 1 | 1 | . | . | |||||||
| Pearl-bordered Fritillary | 57 | . | . | . | . | 3 | 12 | 20 | 11 | 6 | 1 | . | . | . | . | . | . | . | . | . | |||||||
| Silver-washed Fritillary | NI | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | 13 | 8 | 3 | . | . | |||||||
| Speckled Wood | NI | 1 | 2 | 7 | 5 | 2 | 4 | 4 | 6 | 4 | 14 | 22 | 39 | 11 | 4 | 2 | 4 | 16 | 5 | 28 | |||||||
| Marbled White | 50 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 10 | 12 | 8 | . | . | . | |||||||
| Gatekeeper / Hedge Brown | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 141 | 100 | 7 | 5 | |||||||
| Meadow Brown | NI | . | . | . | . | . | . | . | . | . | . | . | 4 | 5 | 6 | 4 | 3 | 2 | 3 | 2 | |||||||
| Ringlet | 1622 | . | . | . | . | . | . | . | . | . | . | 14 | 57 | 217 | 349 | 476 | 108 | 1 | . | . | |||||||