
| 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 | 86 | . | . | . | . | . | . | . | . | 3 | . | 1 | 6 | 18 | 19 | 14 | 13 | 7 | 2 | . | 1 | . | . | ||||
| Large Skipper | 25 | . | . | . | . | . | . | . | 2 | 4 | 3 | 7 | 2 | 3 | . | . | . | . | . | . | . | . | . | ||||
| Dingy Skipper | NI | . | . | . | . | 12 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Grizzled Skipper | 5 | . | . | . | 1 | . | 2 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Clouded Yellow | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | 2 | . | 1 | . | . | ||||
| Brimstone | 16 | 2 | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | 4 | 7 | 1 | . | . | . | . | ||||
| Large White | 36 | . | . | . | . | 3 | . | 6 | 2 | 2 | . | . | 2 | . | 2 | 2 | 5 | 4 | . | . | 1 | . | . | ||||
| Small White | 15 | . | . | . | . | . | 1 | . | . | 1 | . | . | . | . | . | 9 | . | 3 | . | . | 1 | . | . | ||||
| Green-veined White | 27 | . | . | . | . | 2 | 1 | . | . | . | 1 | . | . | 1 | 6 | 5 | 1 | 3 | 1 | 2 | . | . | . | ||||
| Orange Tip | NI | . | . | . | 1 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Green Hairstreak | NI | . | . | . | 1 | 6 | 1 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Brown Hairstreak | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | 1 | ||||
| Small Copper | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||
| Brown Argus | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | ||||
| Common Blue | 457 | . | . | . | . | 4 | 34 | 40 | 13 | 16 | 2 | . | . | . | 4 | 26 | 38 | 67 | 85 | 36 | 47 | 13 | 3 | ||||
| Holly Blue | NI | . | . | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Duke of Burgundy Fritillary | NI | . | . | . | 2 | 10 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Red Admiral | 2 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | ||||
| Painted Lady | 11 | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | 2 | 3 | 1 | 1 | 2 | . | . | ||||
| Small Tortoiseshell | 46 | . | 1 | . | . | . | . | . | . | 1 | 1 | . | . | 1 | . | . | 6 | 14 | 17 | . | 3 | 1 | . | ||||
| Peacock | 69 | 6 | 4 | . | 2 | . | . | . | . | . | . | . | . | . | 2 | 10 | 21 | 19 | 3 | . | . | . | . | ||||
| Comma | 11 | 1 | . | 4 | . | . | . | . | . | . | . | . | 1 | 4 | . | . | . | 1 | . | . | . | . | 2 | ||||
| Silver-washed Fritillary | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 1 | 2 | . | . | . | . | . | ||||
| Speckled Wood | 19 | 2 | . | . | 4 | . | . | 1 | . | . | . | . | . | 1 | . | . | 1 | 4 | . | . | 1 | 1 | 2 | ||||
| Marbled White | 250 | . | . | . | . | . | . | . | . | . | 67 | 41 | 52 | 43 | 12 | 1 | . | . | . | . | . | . | . | ||||
| Gatekeeper / Hedge Brown | 897 | . | . | . | . | . | . | . | . | . | . | . | 17 | 114 | 221 | 281 | 149 | 79 | 29 | . | 6 | 1 | . | ||||
| Meadow Brown | 1121 | . | . | . | . | . | . | . | . | 2 | 15 | 28 | 63 | 79 | 152 | 211 | 113 | 153 | 114 | 109 | 49 | 25 | 11 | ||||
| Small Heath | 129 | . | . | . | . | 3 | 3 | 5 | 2 | 16 | 25 | 10 | 2 | 2 | 1 | 1 | . | . | 2 | 6 | 16 | 8 | . | ||||
| Ringlet | 236 | . | . | . | . | . | . | . | . | 1 | 70 | 69 | 36 | 18 | 6 | . | . | . | . | . | . | . | . | ||||