
| 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 | 3 | . | . | . | . | . | . | 2 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brimstone | 37 | 1 | . | 5 | . | 1 | . | . | . | . | . | . | . | . | 2 | 7 | 7 | 7 | . | . | 1 | 2 | |||||
| Large White | 22 | . | . | . | 1 | 1 | . | . | . | . | . | . | . | 4 | . | 9 | 1 | 5 | . | . | . | . | |||||
| Small White | 11 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 3 | 2 | 2 | . | 1 | 2 | . | . | |||||
| Green-veined White | 30 | . | . | . | 1 | 2 | 2 | . | . | . | 1 | . | 7 | 6 | 4 | 6 | . | . | . | 1 | . | . | |||||
| Orange Tip | 6 | . | . | 1 | 4 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | 4 | . | . | . | 1 | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | . | . | . | . | |||||
| Common Blue | 36 | . | . | . | . | 1 | . | . | . | 3 | 8 | 9 | 5 | 7 | 1 | 2 | . | . | . | . | . | . | |||||
| Red Admiral | 31 | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | 10 | 4 | 6 | 7 | . | 1 | . | . | |||||
| Peacock | 68 | 5 | 2 | 4 | 1 | 2 | . | . | . | . | . | . | . | . | . | 6 | 13 | 14 | 3 | 2 | 3 | . | |||||
| Small Pearl-bordered Fritillary | 4 | . | . | . | . | . | . | . | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Pearl-bordered Fritillary | 27 | . | . | . | . | 1 | 14 | 4 | 2 | 2 | 3 | 1 | . | . | . | . | . | . | . | . | . | . | |||||
| High Brown Fritillary | 60 | . | . | . | . | . | . | . | . | . | . | 4 | 7 | 15 | 16 | 14 | 3 | 1 | . | . | . | . | |||||
| Dark Green Fritillary | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||
| Silver-washed Fritillary | 7 | . | . | . | . | . | . | . | . | . | . | . | 2 | 3 | 2 | . | . | . | . | . | . | . | |||||
| Speckled Wood | 9 | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | 6 | . | . | . | . | . | . | |||||
| Wall Brown | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | |||||
| Grayling | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | . | . | . | . | . | . | |||||
| Meadow Brown | 92 | . | . | . | . | . | . | . | . | . | 6 | 8 | 13 | 23 | 16 | 19 | 4 | . | 2 | . | 1 | . | |||||