
| 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 | 139 | . | . | . | . | . | . | . | . | . | 25 | 79 | 13 | 10 | 1 | . | . | . | . | . | |||||||
| Lulworth Skipper | 1067 | . | . | . | . | . | . | . | . | . | . | 66 | 204 | 234 | 232 | 74 | 1 | . | . | . | |||||||
| Large Skipper | 102 | . | . | . | . | . | 15 | 22 | 30 | 20 | 13 | 2 | . | . | . | . | . | . | . | . | |||||||
| Dingy Skipper | 98 | . | 1 | 4 | 10 | 2 | 31 | 24 | 19 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Grizzled Skipper | 20 | . | . | 2 | 5 | 7 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Clouded Yellow | 9 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 4 | 1 | 2 | . | . | . | |||||||
| Large White | 150 | . | . | . | 1 | . | 5 | . | . | . | 1 | 10 | 45 | 21 | 19 | 6 | 1 | . | 1 | 4 | |||||||
| Small White | 372 | . | . | . | . | 10 | 1 | . | . | . | . | . | 72 | 37 | 51 | 15 | 66 | 3 | 16 | 7 | |||||||
| Green Hairstreak | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||||
| Small Copper | 11 | . | . | 1 | . | . | . | . | . | . | . | . | . | 1 | . | 3 | . | 1 | . | 5 | |||||||
| Small Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Brown Argus | 3 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 1 | . | . | . | . | |||||||
| Common Blue | 878 | . | . | 3 | 13 | 47 | 47 | 62 | 43 | 6 | 6 | 8 | 24 | 100 | 142 | 150 | 53 | 18 | 2 | 5 | |||||||
| Chalk-hill Blue | 198 | . | . | . | . | . | . | . | . | . | . | 24 | 32 | 43 | 29 | 20 | 2 | . | . | . | |||||||
| Adonis Blue | 188 | . | . | . | 8 | 2 | 13 | 7 | 6 | . | . | . | . | . | 7 | 43 | 39 | 19 | 1 | 2 | |||||||
| Red Admiral | 11 | . | . | . | . | . | . | . | . | . | . | . | 2 | . | 2 | 2 | 1 | . | . | 3 | |||||||
| Painted Lady | 16 | . | . | . | . | . | . | . | . | . | . | . | 3 | 8 | 3 | . | 2 | . | . | . | |||||||
| Small Tortoiseshell | 40 | 3 | . | 1 | . | . | . | 1 | 2 | 3 | . | 1 | 1 | 1 | 15 | 4 | 2 | . | 2 | . | |||||||
| Peacock | 35 | 2 | 2 | 1 | . | . | . | . | . | . | . | 1 | 4 | 8 | 3 | 2 | 1 | 1 | 1 | . | |||||||
| Dark Green Fritillary | 13 | . | . | . | . | . | . | . | . | 1 | 2 | . | 2 | 5 | . | . | . | . | . | . | |||||||
| Speckled Wood | 183 | 2 | . | 8 | 17 | 5 | 13 | 5 | 12 | 4 | 1 | 3 | 4 | 6 | 4 | 9 | 31 | 9 | 3 | 10 | |||||||
| Wall Brown | 36 | . | 2 | 6 | 6 | . | . | . | . | . | . | . | . | 3 | 6 | 7 | . | . | . | . | |||||||
| Marbled White | 474 | . | . | . | . | . | . | . | . | . | 26 | 66 | 118 | 100 | 42 | 12 | . | . | . | . | |||||||
| Grayling | 7 | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | . | 1 | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 1613 | . | . | . | . | . | . | . | . | . | 47 | 170 | 281 | 390 | 354 | 61 | 1 | . | . | . | |||||||
| Meadow Brown | 637 | . | . | . | . | . | 4 | 13 | 32 | 50 | 78 | 92 | 88 | 54 | 45 | 50 | 18 | 7 | 1 | . | |||||||
| Small Heath | 114 | . | . | . | 5 | 9 | 3 | 15 | 21 | 10 | 8 | 4 | 3 | . | 2 | 11 | 7 | 4 | . | . | |||||||