
| 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 | NI | . | . | . | . | . | . | . | . | 7 | 4 | 6 | . | . | . | . | . | . | |||||||||
| Dingy Skipper | NI | . | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | . | . | |||||||||
| Brimstone | 38 | 1 | 1 | 8 | 6 | . | . | . | . | . | . | 2 | 2 | . | 5 | . | 3 | . | |||||||||
| Large White | NI | . | . | . | . | . | 4 | 1 | 1 | . | 1 | . | 2 | . | . | . | . | . | |||||||||
| Small White | NI | . | . | . | . | . | 2 | . | 1 | . | . | 1 | . | 2 | . | . | . | . | |||||||||
| Green-veined White | NI | . | . | 1 | 5 | 14 | 16 | 3 | 4 | . | . | 2 | . | 6 | 1 | 1 | . | . | |||||||||
| Orange Tip | 33 | . | . | 6 | 10 | 4 | 3 | 1 | 1 | . | . | . | . | . | . | . | . | . | |||||||||
| Green Hairstreak | 15 | 1 | . | 3 | 1 | 3 | 2 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Small Copper | NI | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | |||||||||
| Northern Brown Argus | NI | . | . | . | . | . | . | . | 2 | 4 | 2 | 4 | 2 | 2 | . | . | . | . | |||||||||
| Common Blue | NI | . | . | . | . | . | . | . | . | 5 | 11 | 61 | 29 | 9 | 5 | . | . | 1 | |||||||||
| Holly Blue | 2 | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Red Admiral | NI | . | . | . | . | . | . | . | 2 | . | 3 | 7 | 4 | 3 | 1 | . | 2 | 1 | |||||||||
| Painted Lady | NI | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | 2 | . | . | . | |||||||||
| Small Tortoiseshell | NI | . | 2 | . | . | . | . | . | . | . | 1 | 4 | 1 | . | . | . | . | . | |||||||||
| Peacock | 241 | 9 | 17 | 28 | 37 | 3 | 6 | 3 | 2 | . | . | 6 | 34 | 17 | 6 | . | . | 1 | |||||||||
| Comma | NI | . | 2 | 1 | 2 | . | . | . | 1 | . | 6 | 1 | 4 | 1 | . | 1 | 4 | 6 | |||||||||
| Small Pearl-bordered Fritillary | NI | . | . | . | . | . | . | . | 39 | 5 | 3 | 2 | . | . | . | . | . | . | |||||||||
| Pearl-bordered Fritillary | NI | . | . | . | . | . | 8 | 12 | 18 | 4 | . | . | . | . | . | . | . | . | |||||||||
| High Brown Fritillary | NI | . | . | . | . | . | . | . | . | 1 | 2 | 38 | 6 | . | . | . | . | . | |||||||||
| Dark Green Fritillary | 208 | . | . | . | . | . | . | . | . | 31 | 31 | 61 | 21 | . | . | . | . | . | |||||||||
| Silver-washed Fritillary | NI | . | . | . | . | . | . | . | . | . | 4 | 11 | 12 | 1 | 2 | . | . | . | |||||||||
| Speckled Wood | NI | . | . | . | 6 | 9 | 12 | 4 | 8 | 10 | 17 | 7 | 5 | 31 | 30 | 42 | 63 | 53 | |||||||||
| Wall Brown | NI | . | . | . | . | . | 1 | 1 | . | . | 1 | . | . | 3 | . | . | . | . | |||||||||
| Grayling | NI | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | |||||||||
| Meadow Brown | 270 | . | . | . | . | . | . | . | . | 19 | 54 | 63 | 29 | 16 | 3 | . | . | . | |||||||||