
| 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 | 19 | . | . | . | . | . | . | 1 | 5 | 3 | 4 | 4 | . | . | . | . | . | . | . | . | |||||||
| Dingy Skipper | 45 | . | . | 3 | 12 | 14 | 4 | 3 | 7 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Brimstone | 79 | 2 | . | 2 | 4 | 2 | . | . | . | . | . | . | . | . | 4 | 21 | 30 | 10 | . | 1 | |||||||
| Large White | 40 | . | . | 3 | 2 | 4 | 2 | . | . | . | . | . | . | 8 | 4 | 3 | 5 | . | 1 | . | |||||||
| Small White | 8 | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 3 | . | . | 2 | . | |||||||
| Green-veined White | 47 | . | 2 | 7 | 4 | 7 | . | . | . | . | . | 1 | 1 | 7 | . | 7 | 2 | . | . | . | |||||||
| Orange Tip | 42 | 6 | 14 | 5 | 7 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Green Hairstreak | 7 | 1 | 1 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Northern Brown Argus | 152 | . | . | . | . | . | . | 12 | 20 | 39 | 30 | 27 | 3 | 4 | . | . | . | . | . | . | |||||||
| Common Blue | 80 | . | . | . | 1 | 2 | 2 | 5 | 1 | . | . | . | 4 | . | 18 | 16 | 14 | 3 | 3 | . | |||||||
| Holly Blue | NI | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Red Admiral | 28 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 6 | 5 | 2 | 14 | |||||||
| Painted Lady | 5 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 2 | . | . | . | . | 1 | |||||||
| Small Tortoiseshell | 25 | 1 | . | . | . | . | . | . | . | . | . | . | 7 | 3 | 2 | 1 | . | 2 | 1 | 2 | |||||||
| Peacock | 573 | 3 | 1 | . | . | . | . | . | . | . | . | . | . | 3 | 136 | 214 | 91 | 53 | 2 | . | |||||||
| Comma | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | . | 1 | |||||||
| Small Pearl-bordered Fritillary | 72 | . | . | . | . | . | 1 | 12 | 15 | 26 | 12 | 4 | . | . | . | . | . | . | . | . | |||||||
| Pearl-bordered Fritillary | 70 | . | . | 15 | 23 | 20 | 9 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| High Brown Fritillary | 81 | . | . | . | . | . | . | . | . | 8 | 19 | 22 | 4 | 2 | 3 | 1 | . | . | . | . | |||||||
| Speckled Wood | 268 | . | 14 | 2 | 2 | 2 | 2 | 3 | 5 | 5 | 21 | 35 | 3 | . | 23 | 4 | 13 | 45 | 14 | 36 | |||||||
| Wall Brown | 124 | . | . | 9 | 16 | 17 | 17 | 4 | 2 | 2 | . | . | . | . | 7 | 20 | 22 | . | . | . | |||||||
| Grayling | 2 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||||
| Meadow Brown | 914 | . | . | . | . | . | . | . | . | 11 | 152 | 214 | 162 | 109 | 13 | 4 | . | . | . | . | |||||||
| Small Heath | 154 | . | . | 8 | 15 | 27 | 37 | 29 | 22 | 8 | 3 | 1 | . | . | . | . | . | . | . | . | |||||||