
| 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 | NI | . | . | . | . | . | . | . | . | . | . | 12 | 30 | 302 | 236 | 152 | 37 | 5 | 2 | . | . | . | |||||
| Large Skipper | 182 | . | . | . | . | . | . | . | . | 1 | 2 | 13 | 94 | 19 | 25 | 7 | 5 | 2 | 2 | . | . | . | |||||
| Dingy Skipper | 5 | . | . | . | . | . | 1 | . | 1 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||
| Grizzled Skipper | 19 | . | . | . | 1 | . | . | 2 | 3 | 9 | 1 | 1 | 1 | 1 | . | . | . | . | . | . | . | . | |||||
| Wood White | NI | . | . | . | . | . | 2 | 6 | 4 | 4 | 1 | 5 | 1 | . | . | . | 4 | 3 | . | . | . | . | |||||
| Clouded Yellow | 9 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 1 | 1 | . | . | . | |||||
| Brimstone | 66 | 7 | 8 | 4 | 1 | 3 | 2 | 9 | 1 | . | 2 | . | . | . | . | 2 | 4 | 1 | . | 1 | 6 | . | |||||
| Large White | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | 1 | . | |||||
| Small White | 8 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | |||||
| Green-veined White | 10 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | . | . | 2 | . | |||||
| Orange Tip | 1 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Green Hairstreak | 7 | . | . | . | . | . | . | . | . | 4 | 3 | . | . | . | . | . | . | . | . | . | . | . | |||||
| Purple Hairstreak | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 2 | . | . | . | . | . | |||||
| Small Copper | 11 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 2 | . | 2 | 1 | . | . | |||||
| Common Blue | 37 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 2 | 12 | 11 | 5 | 9 | . | |||||
| Holly Blue | 15 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 2 | 3 | 1 | 2 | 1 | . | |||||
| White Admiral | 7 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | 2 | . | 1 | . | . | . | |||||
| Red Admiral | 17 | . | . | . | . | . | . | . | . | 1 | . | . | 1 | . | 3 | 1 | . | 5 | . | . | 2 | . | |||||
| Painted Lady | 64 | . | . | 1 | . | . | . | . | 8 | 4 | . | 1 | 1 | . | . | 1 | 14 | 11 | 8 | . | . | . | |||||
| Small Tortoiseshell | 6 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | 1 | . | 1 | . | |||||
| Peacock | 27 | 1 | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 8 | 1 | . | . | . | |||||
| Comma | 5 | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | |||||
| Pearl-bordered Fritillary | 33 | . | . | . | . | 1 | 6 | 16 | 9 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Silver-washed Fritillary | 165 | . | . | . | . | . | . | . | . | . | . | 2 | 24 | 5 | 14 | 36 | 41 | 12 | 1 | . | . | . | |||||
| Speckled Wood | 28 | . | . | . | 4 | 1 | 1 | . | . | . | 1 | 2 | . | . | . | . | 3 | . | . | 2 | 8 | 2 | |||||
| Marbled White | 5 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 4 | . | . | . | . | . | . | |||||
| Gatekeeper / Hedge Brown | 1066 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 52 | 413 | 209 | 41 | 6 | 15 | . | |||||
| Meadow Brown | 624 | . | . | . | . | . | . | . | . | . | . | 15 | 66 | 101 | 144 | 81 | 100 | 29 | 10 | 2 | . | . | |||||
| Small Heath | 9 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | 3 | 2 | |||||
| Ringlet | 71 | . | . | . | . | . | . | . | . | . | . | . | 2 | 18 | 20 | 24 | 6 | . | . | . | . | . | |||||