
| 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 | NI | . | . | . | . | . | . | . | . | . | . | . | 2 | . | 2 | . | . | . | . | . | |||||||
| Lulworth Skipper | 8 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 3 | 1 | . | . | . | . | |||||||
| Large Skipper | 7 | . | . | . | . | . | . | . | . | 2 | 2 | 3 | . | . | . | . | . | . | . | . | |||||||
| Dingy Skipper | 21 | . | . | . | . | . | 6 | 9 | 2 | 4 | . | . | . | . | 1 | . | . | . | . | . | |||||||
| Clouded Yellow | NI | . | . | . | . | . | . | 1 | 1 | . | . | . | . | 3 | . | 5 | 5 | . | . | . | |||||||
| Brimstone | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | |||||||
| Large White | 63 | . | . | . | . | . | 6 | 3 | . | 3 | . | . | . | 5 | 6 | 16 | 4 | 1 | 2 | 1 | |||||||
| Small White | 34 | . | . | . | 1 | . | . | . | 1 | . | 2 | . | . | 1 | 7 | 6 | 8 | . | . | . | |||||||
| Green-veined White | 2 | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Orange Tip | 11 | . | 1 | . | 1 | 2 | 5 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Green Hairstreak | 7 | . | . | . | . | . | 6 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | NI | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | 1 | |||||||
| Brown Argus | NI | . | . | . | . | . | . | 10 | 3 | 8 | 1 | . | . | 1 | 4 | 8 | . | 2 | . | . | |||||||
| Common Blue | NI | . | . | . | . | . | 8 | 39 | 31 | 25 | 7 | 3 | . | . | 3 | 50 | 23 | 13 | 7 | 5 | |||||||
| Chalk-hill Blue | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 8 | 1 | . | . | . | |||||||
| Adonis Blue | NI | . | . | . | . | . | . | 15 | 7 | 10 | 4 | . | . | . | . | . | 8 | 1 | 5 | 7 | |||||||
| Holly Blue | NI | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Red Admiral | NI | . | . | . | . | . | . | . | 1 | . | . | 2 | . | 3 | 3 | 2 | 1 | 1 | . | 2 | |||||||
| Painted Lady | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | |||||||
| Small Tortoiseshell | NI | . | . | . | . | 1 | . | . | . | . | 1 | 2 | 6 | 3 | . | . | 2 | 1 | . | . | |||||||
| Peacock | NI | 3 | 2 | 2 | 2 | 3 | 4 | . | . | . | . | . | . | 4 | 9 | 8 | 1 | . | . | . | |||||||
| Comma | NI | . | . | . | . | . | . | . | . | . | . | . | . | 4 | . | 1 | . | . | . | 1 | |||||||
| Dark Green Fritillary | 9 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 1 | 1 | 1 | . | . | . | |||||||
| Speckled Wood | 213 | 2 | 5 | 6 | 12 | 5 | 2 | 13 | 21 | 17 | 4 | 4 | . | 12 | 22 | 21 | 9 | 8 | 7 | 6 | |||||||
| Wall Brown | 18 | . | . | . | . | . | . | 4 | 1 | . | . | . | . | . | 2 | 4 | 3 | . | . | . | |||||||
| Marbled White | 103 | . | . | . | . | . | . | . | . | . | . | 17 | 4 | 30 | 17 | 11 | 1 | . | . | . | |||||||
| Grayling | 8 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | 3 | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 329 | . | . | . | . | . | . | . | . | . | . | . | . | 28 | 105 | 86 | 33 | 2 | . | . | |||||||
| Meadow Brown | 374 | . | . | . | . | . | . | . | . | . | 7 | 27 | 17 | 33 | 61 | 57 | 53 | 22 | 2 | 2 | |||||||
| Small Heath | 23 | . | . | . | . | . | . | 1 | 4 | 7 | 3 | 5 | 1 | . | . | . | . | . | . | 1 | |||||||