
| 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 | 250 | . | . | . | . | . | . | . | . | . | 4 | 35 | 38 | 67 | 60 | 31 | 10 | 1 | . | . | . | . | |||||
| Large Skipper | NI | . | . | . | . | . | . | . | 3 | . | 8 | 1 | . | 2 | 2 | . | . | . | . | . | . | . | |||||
| Dingy Skipper | NI | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brimstone | 30 | 1 | 3 | 5 | 4 | 5 | 2 | 1 | . | . | . | . | 1 | 4 | . | . | 1 | . | . | . | . | 6 | |||||
| Large White | NI | . | . | . | . | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | |||||
| Small White | 25 | . | . | . | . | 1 | . | . | . | . | . | 1 | . | 5 | 2 | 4 | 2 | 1 | 2 | 5 | . | 2 | |||||
| Green-veined White | 16 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | 2 | 7 | 1 | 3 | . | . | . | . | |||||
| Small Copper | NI | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | 1 | 1 | . | . | 1 | . | |||||
| Brown Argus | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||
| Common Blue | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 1 | 1 | . | |||||
| White Admiral | NI | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | |||||
| Red Admiral | 4 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | 1 | . | 1 | . | . | 1 | |||||
| Painted Lady | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | |||||
| Small Tortoiseshell | 15 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 6 | 5 | 1 | . | |||||
| Peacock | 33 | 2 | 2 | 5 | 3 | . | 1 | 1 | . | . | . | . | . | 1 | . | 3 | 7 | 4 | . | . | . | . | |||||
| Comma | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | |||||
| Pearl-bordered Fritillary | NI | . | . | . | . | . | . | 2 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Dark Green Fritillary | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||
| Silver-washed Fritillary | 23 | . | . | . | . | . | . | . | . | . | . | 7 | . | 7 | 4 | 4 | 1 | . | . | . | . | . | |||||
| Speckled Wood | 27 | . | . | 1 | 2 | 1 | 1 | . | . | . | 3 | . | 1 | . | 1 | . | 1 | 1 | 5 | 2 | 1 | 3 | |||||
| Marbled White | 85 | . | . | . | . | . | . | . | . | . | 6 | 37 | 16 | 13 | 6 | 1 | . | . | . | . | . | . | |||||
| Gatekeeper / Hedge Brown | 256 | . | . | . | . | . | . | . | . | . | . | 2 | 24 | 78 | 57 | 58 | 28 | 6 | . | . | . | . | |||||
| Meadow Brown | 184 | . | . | . | . | . | . | . | 1 | . | 23 | 55 | 9 | 29 | 22 | 3 | 7 | 6 | 1 | . | . | . | |||||
| Ringlet | 243 | . | . | . | . | . | . | . | . | . | 20 | 120 | 40 | 29 | 14 | . | . | . | . | . | . | . | |||||