
| 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 | ||||||||||||||||||||||||||
| Large Skipper | 37 | . | . | . | . | . | . | . | . | 6 | 24 | 4 | 1 | . | . | . | . | . | . | . | |||||||
| Dingy Skipper | NI | . | . | . | . | . | . | 8 | 10 | 2 | . | . | . | . | . | . | . | . | . | . | |||||||
| Clouded Yellow | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | . | . | |||||||
| Brimstone | 130 | . | . | 3 | . | 4 | 7 | . | . | . | . | . | . | . | 2 | 11 | 49 | 11 | 6 | . | |||||||
| Large White | 163 | . | . | . | . | 1 | 6 | 3 | 1 | 5 | 4 | 1 | 1 | 3 | 2 | 8 | 8 | 48 | 37 | . | |||||||
| Small White | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | |||||||
| Green-veined White | 116 | . | . | . | . | 3 | 6 | 18 | . | . | . | . | 9 | 14 | 16 | 4 | 3 | 2 | 2 | . | |||||||
| Orange Tip | 36 | . | . | . | . | 1 | 16 | 4 | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Green Hairstreak | 27 | . | . | . | . | 1 | 14 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Northern Brown Argus | 221 | . | . | . | . | . | . | . | 3 | 28 | 61 | 50 | 25 | 12 | . | . | . | . | . | . | |||||||
| Common Blue | 31 | . | . | . | . | . | . | 1 | 1 | 5 | 6 | . | 2 | . | . | 4 | 3 | 2 | . | . | |||||||
| Holly Blue | 1 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Red Admiral | 222 | . | . | . | . | . | . | . | . | 1 | 1 | 1 | . | . | . | . | 17 | 65 | 85 | 1 | |||||||
| Painted Lady | 214 | . | . | . | . | . | . | . | . | . | 2 | . | . | 1 | . | . | 25 | 85 | 55 | 4 | |||||||
| Small Tortoiseshell | 71 | . | 1 | . | 2 | 1 | 1 | . | . | . | . | 1 | 6 | 7 | 14 | 1 | 1 | 8 | 9 | 6 | |||||||
| Peacock | 598 | 3 | 2 | 9 | 6 | 7 | 4 | . | . | . | . | . | . | . | 17 | 100 | 198 | 52 | 30 | 3 | |||||||
| Comma | 15 | 1 | 4 | 1 | 1 | 2 | . | . | . | . | . | . | . | . | 1 | 2 | 1 | . | . | . | |||||||
| Small Pearl-bordered Fritillary | 74 | . | . | . | . | . | . | . | 18 | 28 | 10 | . | . | . | . | . | . | . | . | . | |||||||
| Pearl-bordered Fritillary | 12 | . | . | . | . | . | 2 | 6 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| High Brown Fritillary | 44 | . | . | . | . | . | . | . | . | 1 | 6 | 13 | 10 | 15 | 9 | . | . | . | . | . | |||||||
| Speckled Wood | 255 | . | . | . | . | 8 | 8 | 6 | . | 7 | 13 | 35 | 17 | 17 | 16 | 21 | 10 | 15 | 8 | 10 | |||||||
| Wall Brown | 43 | . | . | . | . | . | . | 1 | . | . | 1 | . | . | . | . | 12 | 13 | 3 | . | 1 | |||||||
| Grayling | 11 | . | . | . | . | . | . | . | . | . | . | . | 2 | 2 | 1 | 1 | 2 | . | . | . | |||||||
| Meadow Brown | 925 | . | . | . | . | . | . | . | . | 2 | 22 | 147 | 151 | 217 | 129 | 48 | 18 | 8 | 1 | . | |||||||
| Small Heath | 31 | . | . | . | . | . | . | 14 | 6 | 3 | . | . | . | . | . | . | . | . | 1 | . | |||||||