
| 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 | ||||||||||||||||||||||||||
| Small Skipper | . | . | . | . | . | . | . | . | . | 8 | 5 | 9 | 9 | . | . | . | . | . | . | . | ||||||
| Large Skipper | . | . | . | . | . | 2 | 6 | 2 | 3 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | . | . | . | 11 | 7 | 9 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 3 | 1 | . | . | ||||||
| Small White | . | . | . | . | . | . | . | . | . | . | . | 1 | 17 | 15 | 3 | 7 | 7 | 32 | 6 | . | ||||||
| Green-veined White | . | . | 4 | 13 | 11 | 13 | 13 | 2 | 3 | 5 | 5 | 1 | 15 | 7 | 10 | 5 | . | 3 | . | . | ||||||
| Orange Tip | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Northern Brown Argus | . | . | . | . | 2 | 10 | 30 | 32 | 32 | 22 | 20 | 19 | 2 | 1 | 1 | . | . | . | . | . | ||||||
| Red Admiral | . | . | . | . | . | . | 1 | . | 3 | 2 | . | 3 | 11 | 9 | 11 | 7 | 13 | 4 | 2 | 12 | ||||||
| Painted Lady | . | . | . | . | . | . | 3 | . | . | . | . | 1 | 9 | 14 | 18 | 42 | 17 | 13 | . | . | ||||||
| Small Tortoiseshell | 3 | 1 | 1 | 6 | 2 | 2 | . | . | . | 2 | 2 | 25 | 22 | 14 | 5 | 1 | . | 5 | 2 | . | ||||||
| Peacock | 6 | 12 | 14 | 2 | . | 3 | 1 | . | . | . | . | 1 | 32 | 45 | 86 | 72 | 19 | 19 | . | . | ||||||
| Comma | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | ||||||
| Dark Green Fritillary | . | . | . | . | . | . | . | 2 | 5 | 20 | 17 | 13 | 8 | 4 | . | . | . | . | . | . | ||||||
| Speckled Wood | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | ||||||
| Scotch Argus | . | . | . | . | . | . | . | . | . | . | . | 72 | 186 | 278 | 80 | 24 | 3 | . | . | . | ||||||
| Meadow Brown | . | . | . | . | . | . | . | 6 | 23 | 59 | 54 | 72 | 41 | 35 | 7 | . | . | . | . | . | ||||||
| Small Heath | . | . | . | 1 | 7 | 4 | 7 | 8 | 20 | 23 | 44 | 30 | 29 | 46 | 9 | 15 | 2 | 1 | . | 2 | ||||||
| Ringlet | . | . | . | . | . | . | . | 15 | 48 | 171 | 84 | 55 | 33 | 3 | . | . | . | . | . | . | ||||||
| Common blue (Northern) | . | . | . | . | . | 1 | 11 | 47 | 79 | 67 | 84 | 47 | 22 | 6 | . | . | 1 | . | . | . | ||||||