
| 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 | 17 | . | . | . | . | . | . | . | . | . | 3 | . | . | 10 | 3 | . | 1 | . | . | . | . | . | . | ||||
| Large Skipper | 31 | . | . | . | . | . | . | . | 2 | 1 | 1 | 14 | 10 | 2 | . | . | . | . | . | . | . | . | . | ||||
| Brimstone | 3 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||
| Large White | 23 | . | . | . | . | . | 2 | 1 | . | . | . | . | 4 | 4 | 5 | 1 | 4 | 1 | . | . | . | . | . | ||||
| Small White | 22 | . | 2 | . | 2 | 1 | . | 3 | . | . | 1 | . | . | 2 | . | . | 3 | 1 | 2 | 1 | . | . | 2 | ||||
| Green-veined White | 89 | . | 1 | . | 2 | 4 | 3 | 4 | 2 | . | . | . | . | 18 | 7 | 20 | 11 | 7 | 4 | . | . | . | . | ||||
| Orange Tip | 4 | . | 1 | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Purple Hairstreak | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||
| Small Copper | 20 | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | 3 | . | 2 | 1 | 1 | 2 | 1 | . | 8 | ||||
| Common Blue | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 2 | . | 1 | . | . | . | . | ||||
| Red Admiral | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | ||||
| Painted Lady | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Small Tortoiseshell | 20 | . | . | . | . | . | . | . | . | . | 1 | 6 | 3 | 3 | 1 | . | . | 2 | 1 | 2 | . | . | . | ||||
| Peacock | 22 | 3 | 2 | . | 1 | 2 | . | . | . | . | . | . | . | 4 | 3 | 6 | . | . | . | . | . | 1 | . | ||||
| Comma | 8 | 1 | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | 2 | 3 | ||||
| Small Pearl-bordered Fritillary | 5 | . | . | . | . | . | . | . | 2 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Pearl-bordered Fritillary | 6 | . | . | . | . | . | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| High Brown Fritillary | 82 | . | . | . | . | . | . | . | . | 8 | 20 | 26 | 15 | 9 | 4 | . | . | . | . | . | . | . | . | ||||
| Silver-washed Fritillary | 8 | . | . | . | . | . | . | . | . | . | 1 | . | 2 | 2 | . | 2 | 1 | . | . | . | . | . | . | ||||
| Speckled Wood | 71 | . | 1 | . | . | 2 | 1 | 1 | 2 | 9 | 7 | 4 | 8 | 2 | 3 | 1 | 2 | 4 | 6 | 2 | 4 | 2 | . | ||||
| Marbled White | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | ||||
| Gatekeeper / Hedge Brown | 282 | . | . | . | . | . | . | . | . | . | . | . | . | 28 | 74 | 73 | 65 | 28 | 10 | 3 | . | . | . | ||||
| Meadow Brown | 160 | . | . | . | . | . | . | . | . | 1 | 17 | 36 | 37 | 30 | 13 | 16 | 8 | 2 | . | . | . | . | . | ||||
| Small Heath | 11 | . | . | . | . | . | . | . | . | . | 1 | 2 | 1 | . | . | . | 2 | 1 | 3 | 1 | . | . | . | ||||
| Ringlet | 128 | . | . | . | . | . | . | . | . | . | . | 20 | 42 | 50 | 13 | 3 | . | . | . | . | . | . | . | ||||