
| 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 | 57 | . | . | . | . | . | . | 2 | 22 | 25 | 6 | . | 1 | 1 | . | . | . | . | . | ||||||||
| Lulworth Skipper | 3 | . | . | . | . | . | . | . | 1 | . | . | . | 2 | . | . | . | . | . | . | ||||||||
| Large Skipper | 21 | . | . | . | . | . | 1 | 15 | . | 4 | . | . | . | . | . | . | . | . | . | ||||||||
| Dingy Skipper | 10 | 2 | 2 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Clouded Yellow | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||||||
| Large White | 24 | . | 1 | . | . | . | . | . | 2 | . | 1 | 4 | . | 6 | . | . | . | 4 | 3 | ||||||||
| Small White | 130 | 14 | 3 | 1 | 7 | . | 1 | 1 | 1 | 1 | . | 9 | 10 | 15 | 6 | 25 | 22 | 3 | 4 | ||||||||
| Small Copper | 5 | . | . | . | . | . | . | . | 1 | . | . | 1 | 1 | 1 | . | . | . | . | 1 | ||||||||
| Small Blue | 73 | 6 | 15 | 8 | 15 | 3 | . | . | 3 | 1 | 5 | . | 2 | . | . | . | . | . | . | ||||||||
| Silver-studded Blue | 74 | . | . | . | 2 | 15 | . | 32 | 24 | . | . | . | . | 1 | . | . | . | . | . | ||||||||
| Brown Argus | 2 | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Common Blue | 417 | . | 26 | 28 | 35 | 28 | 26 | . | 6 | 17 | 8 | 24 | 24 | 106 | 29 | 41 | 11 | 12 | 4 | ||||||||
| Chalk-hill Blue | 4 | . | . | . | . | . | . | . | . | . | . | . | 4 | . | . | . | . | . | . | ||||||||
| Holly Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||||||
| Red Admiral | 110 | . | . | . | . | 1 | 2 | . | 1 | . | . | 1 | . | 2 | 2 | 28 | 27 | 20 | 11 | ||||||||
| Painted Lady | 44 | . | 1 | . | . | . | . | . | 1 | . | 1 | 2 | 5 | 6 | 2 | 9 | 11 | 3 | . | ||||||||
| Small Tortoiseshell | 12 | . | . | . | . | 1 | 1 | . | . | . | . | . | 3 | 7 | . | . | . | . | . | ||||||||
| Speckled Wood | 17 | . | . | 3 | 2 | 3 | . | . | . | . | . | . | . | 1 | 2 | 3 | . | 1 | 1 | ||||||||
| Wall Brown | 13 | 5 | . | . | . | . | . | . | . | . | . | . | 1 | 3 | 2 | . | . | . | . | ||||||||
| Marbled White | 108 | . | . | . | . | . | 1 | 15 | 43 | 33 | 13 | 1 | 2 | . | . | . | . | . | . | ||||||||
| Grayling | 3 | . | . | . | . | . | . | . | . | . | 1 | . | 2 | . | . | . | . | . | . | ||||||||
| Gatekeeper / Hedge Brown | 8 | . | . | . | . | . | . | . | . | . | 2 | 1 | 5 | . | . | . | . | . | . | ||||||||
| Meadow Brown | 331 | . | . | . | 1 | 9 | 30 | 52 | 68 | 50 | 36 | 24 | 15 | 34 | 6 | 2 | 4 | . | . | ||||||||
| Small Heath | 42 | . | . | . | 3 | 9 | 2 | . | . | 2 | . | . | . | 4 | 5 | 9 | 1 | 3 | 1 | ||||||||
| Ringlet | 17 | . | . | . | . | . | . | 1 | 5 | 12 | . | . | . | . | . | . | . | . | . | ||||||||