
| 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 | ||||||||||||||||||||||||||
| Small Skipper | 82 | . | . | . | . | . | . | . | . | 3 | 7 | 32 | 3 | . | . | . | . | . | . | . | . | ||||||
| Large Skipper | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | NI | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Clouded Yellow | 89 | . | . | . | . | . | . | . | 1 | . | . | 4 | 5 | 19 | 20 | 7 | 3 | 5 | 9 | . | . | ||||||
| Brimstone | 135 | . | 17 | 12 | 4 | 4 | 6 | 2 | . | . | . | 3 | 24 | 13 | 10 | 2 | . | 2 | . | . | . | ||||||
| Large White | 130 | . | . | . | . | . | . | . | . | . | . | 12 | 15 | 31 | 21 | 19 | 2 | 3 | . | . | . | ||||||
| Small White | 684 | . | . | 5 | 7 | 14 | 35 | 39 | 15 | 2 | 5 | 33 | 57 | 137 | 65 | 20 | 21 | 41 | 16 | 24 | . | ||||||
| Green-veined White | 20 | . | . | . | . | 2 | 3 | 7 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Orange Tip | NI | . | . | 1 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 44 | . | . | . | . | 1 | . | . | . | . | . | . | . | 3 | 2 | 4 | 2 | 1 | 12 | 16 | . | ||||||
| Small Blue | 89 | . | . | . | . | 3 | 23 | 11 | 1 | . | . | 1 | 3 | 6 | 26 | 2 | 3 | . | . | . | . | ||||||
| Brown Argus | 87 | . | . | . | . | 1 | 4 | 7 | 2 | . | . | . | 2 | 26 | 17 | 6 | 8 | 7 | . | . | . | ||||||
| Common Blue | 227 | . | . | . | . | 24 | 19 | 6 | 6 | 3 | . | 2 | . | 52 | 60 | 18 | 4 | 6 | . | . | . | ||||||
| Chalk-hill Blue | 119 | . | . | . | . | . | . | . | . | . | . | . | . | 19 | 39 | 28 | 7 | 6 | . | . | . | ||||||
| Adonis Blue | 254 | . | . | . | . | 12 | 56 | 9 | . | . | . | 2 | 6 | . | 52 | 36 | 17 | 14 | 2 | . | . | ||||||
| Red Admiral | 35 | . | . | . | 1 | . | . | . | . | . | 1 | 8 | 6 | 1 | . | 1 | 1 | 1 | 1 | 2 | . | ||||||
| Painted Lady | 41 | . | . | . | . | . | 1 | 10 | 2 | 1 | 3 | . | 10 | 3 | 2 | . | . | . | . | 1 | . | ||||||
| Small Tortoiseshell | 31 | . | . | 2 | 3 | . | . | . | . | . | 3 | 2 | 2 | . | . | 1 | 2 | . | . | . | . | ||||||
| Peacock | 20 | . | 1 | 3 | 3 | . | . | . | . | . | . | . | 1 | 4 | . | 1 | . | 1 | . | 1 | . | ||||||
| Comma | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | ||||||
| Dark Green Fritillary | 8 | . | . | . | . | . | . | . | . | . | . | 1 | . | 5 | . | . | . | . | . | . | . | ||||||
| Silver-washed Fritillary | 36 | . | . | . | . | . | . | . | . | . | . | 4 | 3 | 14 | 2 | 4 | . | . | . | . | . | ||||||
| Marsh Fritillary | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Speckled Wood | 12 | . | . | . | 1 | . | . | . | . | 1 | . | 1 | 2 | . | . | 3 | . | 1 | 1 | . | . | ||||||
| Wall Brown | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||||
| Marbled White | 265 | . | . | . | . | . | . | . | 1 | 20 | 60 | 38 | 8 | . | . | . | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 208 | . | . | . | . | . | . | . | . | . | 1 | 56 | 68 | . | 15 | 4 | 1 | . | . | . | . | ||||||
| Meadow Brown | 1192 | . | . | . | . | . | . | 7 | 6 | 32 | 118 | 254 | 181 | . | 97 | 45 | 14 | 5 | 2 | . | . | ||||||
| Small Heath | 149 | . | . | . | 2 | 6 | 19 | 23 | 12 | 18 | 17 | 4 | 2 | . | 3 | 4 | 10 | 4 | 3 | . | . | ||||||
| Ringlet | 145 | . | . | . | . | . | . | . | . | 6 | 34 | 29 | . | . | 1 | 2 | . | . | . | . | . | ||||||