
| 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 | 78 | . | . | . | . | . | . | . | . | . | . | . | 6 | 20 | 22 | 11 | 12 | 3 | 4 | . | . | . | . | . | |||
| Large Skipper | 21 | . | . | . | . | . | . | . | . | 1 | 1 | 7 | 7 | 5 | . | . | . | . | . | . | . | . | . | . | |||
| Grizzled Skipper | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||
| Clouded Yellow | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | |||
| Brimstone | 29 | 1 | 3 | . | . | . | 1 | 2 | . | 1 | . | . | . | . | 1 | . | 2 | 8 | 2 | 1 | . | 1 | . | 4 | |||
| Large White | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | 1 | 2 | . | . | . | |||
| Small White | 48 | . | . | . | . | . | . | . | . | . | . | . | 2 | . | 3 | 1 | 6 | 2 | 1 | 2 | 8 | 11 | 4 | . | |||
| Green-veined White | 4 | . | . | . | . | . | 1 | . | . | . | . | . | . | 1 | . | . | 1 | . | . | . | . | . | . | 1 | |||
| Orange Tip | 3 | . | . | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||
| Small Copper | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | 1 | 7 | |||
| Common Blue | 13 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 1 | 5 | 1 | 2 | 1 | . | |||
| Holly Blue | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | |||
| White Admiral | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | |||
| Red Admiral | 34 | . | . | . | . | 1 | . | . | . | . | 1 | . | 1 | 2 | . | 1 | . | . | 1 | 1 | 13 | 5 | 3 | 1 | |||
| Painted Lady | 35 | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | 2 | 2 | 5 | 5 | 9 | 3 | |||
| Small Tortoiseshell | 23 | . | . | . | . | . | . | . | . | . | . | 5 | . | . | . | . | . | 1 | . | 2 | 8 | 4 | . | 1 | |||
| Peacock | 21 | 4 | . | . | 2 | 1 | 1 | 4 | 2 | . | . | . | . | . | . | . | 2 | 2 | 1 | . | . | . | . | . | |||
| Comma | 20 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | 2 | 4 | 5 | 4 | |||
| Pearl-bordered Fritillary | 5 | . | . | . | . | . | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||
| Silver-washed Fritillary | 18 | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | 3 | 2 | 6 | 2 | 1 | 1 | . | . | . | . | |||
| Speckled Wood | 69 | . | 1 | 1 | 1 | 1 | 2 | 1 | 2 | 4 | 2 | 4 | 1 | . | 3 | . | 1 | 1 | 5 | 3 | 18 | 9 | 3 | . | |||
| Marbled White | 9 | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 3 | . | 2 | 2 | . | . | . | . | . | . | . | |||
| Gatekeeper / Hedge Brown | 153 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 23 | 13 | 35 | 46 | 24 | 10 | 1 | . | . | . | |||
| Meadow Brown | 129 | . | . | . | . | . | . | . | . | . | 1 | 10 | 16 | 7 | 47 | 5 | 19 | 6 | 9 | 3 | 3 | 2 | . | . | |||
| Small Heath | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||
| Ringlet | 152 | . | . | . | . | . | . | . | . | . | . | . | 23 | 56 | 33 | 25 | 12 | 1 | 2 | . | . | . | . | . | |||
| Five-spot Burnet | NI | . | . | . | . | . | . | . | . | . | . | . | . | 4 | . | . | . | . | . | . | . | . | . | . | |||
| Speckled Yellow | NI | . | . | . | . | . | . | 29 | 34 | 3 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||
| Broad-bordered Bee Hawk-moth | NI | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||
| Silver Y | NI | . | . | . | . | . | . | . | . | 1 | . | . | 2 | 5 | . | . | . | . | . | . | . | . | . | . | |||