
| 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 | 45 | . | . | . | . | . | . | . | . | . | . | 9 | 18 | 11 | 4 | 2 | . | . | . | . | . | . | |||||
| Large Skipper | 26 | . | . | . | . | . | . | . | 4 | 13 | 5 | 3 | 1 | . | . | . | . | . | . | . | . | . | |||||
| Dingy Skipper | 49 | . | . | . | 3 | 13 | 17 | 4 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Grizzled Skipper | 40 | . | 5 | 7 | 2 | 7 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Clouded Yellow | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | |||||
| Brimstone | 70 | . | 3 | 5 | 3 | 3 | 1 | 1 | . | 2 | . | . | . | 2 | 11 | 7 | 3 | . | . | 4 | 5 | . | |||||
| Large White | 78 | . | . | . | 1 | 1 | . | . | . | 1 | . | 1 | 5 | 15 | 22 | 7 | 6 | 3 | . | 3 | . | 2 | |||||
| Small White | 26 | . | . | 1 | . | . | . | . | . | . | . | . | 1 | . | 2 | 3 | 5 | . | 3 | 5 | . | 1 | |||||
| Green-veined White | 24 | . | . | 1 | . | . | . | . | . | . | . | . | . | 3 | 11 | 4 | 1 | . | . | . | . | . | |||||
| Green Hairstreak | 32 | . | . | . | 3 | 9 | 4 | 8 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | 8 | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 2 | . | |||||
| Small Blue | 26 | . | . | . | . | 1 | 5 | 4 | 5 | 3 | . | . | . | 3 | . | 4 | . | . | . | . | . | . | |||||
| Brown Argus | 93 | . | . | . | . | 8 | 6 | 6 | . | 1 | . | . | . | 2 | 3 | 20 | 8 | 10 | 1 | 1 | 1 | 2 | |||||
| Common Blue | 600 | . | . | . | . | 58 | 88 | 109 | 41 | 50 | 6 | . | 2 | 6 | 10 | 40 | 33 | 32 | 11 | 7 | 13 | 7 | |||||
| Adonis Blue | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||
| Holly Blue | 2 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Duke of Burgundy Fritillary | NI | . | . | 1 | 3 | 2 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Red Admiral | 8 | . | . | . | . | . | . | . | . | 2 | 1 | . | 1 | . | . | . | 1 | 1 | . | 1 | . | . | |||||
| Painted Lady | 8 | . | . | . | . | . | . | 3 | 2 | . | 1 | . | . | . | 1 | 1 | . | . | . | . | . | . | |||||
| Small Tortoiseshell | 6 | 2 | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||
| Peacock | 25 | 1 | 3 | 2 | 2 | . | . | . | . | . | . | . | . | 2 | 4 | . | . | . | 5 | . | . | . | |||||
| Comma | 4 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | |||||
| Pearl-bordered Fritillary | 1 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Dark Green Fritillary | 383 | . | . | . | . | . | . | 2 | 3 | 118 | 112 | 67 | 56 | 13 | . | . | . | . | . | . | . | . | |||||
| Silver-washed Fritillary | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | |||||
| Marsh Fritillary | 12 | . | . | . | . | 3 | 7 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Speckled Wood | 68 | . | 2 | 2 | 1 | 4 | 5 | 7 | . | 1 | . | . | . | 2 | 1 | 5 | 7 | 6 | . | 2 | 5 | 4 | |||||
| Marbled White | 272 | . | . | . | . | . | . | . | 2 | 50 | 75 | 75 | 58 | 4 | 2 | . | . | . | . | . | . | . | |||||
| Gatekeeper / Hedge Brown | 146 | . | . | . | . | . | . | . | . | . | . | 8 | 15 | 43 | 48 | 12 | 5 | 1 | 1 | . | . | . | |||||
| Meadow Brown | 1947 | . | . | . | . | . | . | 1 | 2 | 8 | 19 | 39 | 18 | 113 | 189 | 293 | 269 | 225 | 89 | 88 | 76 | 79 | |||||
| Small Heath | 336 | . | . | . | . | 7 | 4 | 3 | 2 | 53 | 33 | 70 | 36 | 17 | 8 | 15 | 13 | 15 | 7 | 3 | 6 | 1 | |||||
| Ringlet | 180 | . | . | . | . | . | . | . | 3 | 50 | 66 | 40 | 13 | 2 | . | . | . | . | . | . | . | . | |||||