
| 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/Essex Skipper | 44 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 17 | 16 | 6 | . | . | . | . | . | |||||
| Large Skipper | 39 | . | . | . | . | . | . | . | . | . | . | 5 | 12 | 12 | 5 | . | 6 | . | . | . | . | . | |||||
| Brimstone | 2 | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Large White | 22 | . | 3 | . | 2 | . | . | . | . | . | . | . | . | . | 1 | 3 | 5 | . | . | 2 | . | . | |||||
| Small White | 26 | . | 2 | 2 | . | . | . | . | . | . | . | . | . | . | . | 4 | 10 | 1 | 1 | . | . | . | |||||
| Green-veined White | 8 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 4 | 2 | . | . | . | . | |||||
| Orange Tip | 5 | . | . | . | 3 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brown Hairstreak | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | |||||
| Small Copper | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | . | . | |||||
| Common Blue | 13 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 10 | . | . | . | . | |||||
| Holly Blue | 2 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Red Admiral | 29 | . | 3 | 1 | . | 1 | . | . | . | . | 4 | . | 4 | . | 1 | 2 | 3 | 2 | . | . | 2 | 3 | |||||
| Painted Lady | 2 | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | |||||
| Peacock | 4 | . | . | . | 2 | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||
| Comma | 14 | . | 2 | . | . | . | . | . | . | . | . | . | . | 1 | 4 | . | 3 | 2 | . | . | . | . | |||||
| Silver-washed Fritillary | 9 | . | . | . | . | . | . | . | . | . | . | . | 2 | 2 | 3 | 1 | . | 1 | . | . | . | . | |||||
| Speckled Wood | 34 | . | 2 | . | . | 1 | . | . | . | 1 | 6 | 2 | 1 | . | . | . | . | 5 | 2 | 1 | 5 | . | |||||
| Marbled White | 33 | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 12 | 8 | 7 | . | . | . | . | . | |||||
| Gatekeeper / Hedge Brown | 91 | . | . | . | . | . | . | . | . | . | . | . | . | . | 17 | 28 | 29 | 7 | 1 | . | . | . | |||||
| Meadow Brown | 212 | . | . | . | . | . | . | . | . | . | . | 8 | 27 | 52 | 48 | 41 | 31 | 3 | . | . | . | . | |||||