
| 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 | 63 | . | . | . | . | . | . | . | . | . | 23 | 9 | 4 | 4 | 4 | 1 | . | . | . | . | |||||||
| Large Skipper | 22 | . | . | . | . | . | 1 | 3 | 9 | 1 | 1 | . | . | . | . | . | . | . | . | . | |||||||
| Dingy Skipper | NI | . | . | . | 26 | 9 | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Grizzled Skipper | NI | . | 1 | 4 | 19 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Clouded Yellow | 36 | . | . | . | . | . | . | . | . | . | . | . | 9 | 5 | 2 | 10 | 3 | 3 | . | . | |||||||
| Brimstone | 53 | 1 | . | 1 | 6 | 1 | . | . | . | . | . | . | 14 | 6 | 2 | 2 | 1 | . | . | . | |||||||
| Large White | 46 | . | . | . | . | 2 | . | 1 | . | . | 2 | 5 | 15 | 1 | 3 | 2 | 2 | . | . | . | |||||||
| Small White | 46 | . | . | . | . | 1 | . | 1 | . | . | 1 | 4 | 10 | 10 | 3 | 4 | 1 | 1 | 3 | . | |||||||
| Green-veined White | 21 | . | . | 3 | . | . | . | . | . | . | 3 | 1 | 5 | . | 1 | . | 1 | . | . | . | |||||||
| Orange Tip | NI | . | . | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Green Hairstreak | NI | . | . | 2 | 5 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 67 | . | . | 2 | 2 | 5 | . | 1 | . | . | 1 | . | 8 | 4 | 4 | 11 | 2 | 1 | 3 | 7 | |||||||
| Brown Argus | 232 | . | . | . | 1 | 24 | . | 12 | 2 | 1 | . | . | 6 | 13 | 42 | 37 | 35 | 12 | 8 | 5 | |||||||
| Common Blue | 486 | . | . | . | 1 | 55 | 28 | 28 | 23 | 1 | . | 1 | 22 | 28 | 50 | 62 | 44 | 34 | 10 | 5 | |||||||
| Chalk-hill Blue | 65 | . | . | . | . | . | . | . | . | . | . | . | 17 | 7 | 8 | 15 | 5 | 4 | . | 1 | |||||||
| Adonis Blue | 112 | . | . | . | . | 10 | 10 | 9 | 2 | . | . | . | . | . | 6 | 22 | 10 | 14 | 9 | 4 | |||||||
| Holly Blue | 11 | . | . | 4 | . | . | . | . | . | . | . | . | 2 | . | . | 1 | . | . | . | . | |||||||
| Red Admiral | 12 | . | . | . | . | . | 1 | . | 1 | . | . | . | 2 | . | 3 | 1 | . | 2 | 1 | . | |||||||
| Painted Lady | 27 | . | . | . | . | . | . | 2 | . | . | . | . | 5 | . | 10 | 3 | 1 | 1 | . | 2 | |||||||
| Small Tortoiseshell | 282 | 18 | 6 | 2 | 10 | 3 | . | 7 | 11 | 14 | 10 | 2 | 17 | 15 | 43 | 20 | 5 | 27 | 17 | 3 | |||||||
| Peacock | 57 | 7 | 6 | 6 | . | 3 | . | . | . | . | 1 | 1 | 9 | 4 | . | . | . | . | . | 1 | |||||||
| Comma | 4 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | |||||||
| Dark Green Fritillary | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Marsh Fritillary | 39 | . | . | . | 1 | 16 | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Speckled Wood | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | |||||||
| Wall Brown | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Marbled White | 172 | . | . | . | . | . | . | . | 3 | 17 | 62 | 29 | 3 | . | . | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 133 | . | . | . | . | . | . | . | . | . | 21 | 20 | 39 | 3 | 10 | . | . | . | . | . | |||||||
| Meadow Brown | 2874 | . | . | . | . | . | . | 2 | 54 | 56 | 123 | 204 | 273 | 338 | 477 | 458 | 205 | 144 | 122 | 62 | |||||||
| Small Heath | 170 | . | . | . | 5 | 10 | 8 | 18 | 25 | 11 | 7 | 6 | 8 | . | . | 4 | 8 | 3 | 1 | . | |||||||
| Ringlet | 22 | . | . | . | . | . | . | . | 1 | 5 | 9 | . | . | . | . | . | . | . | . | . | |||||||
| Six-spot Burnet | NI | . | . | . | . | . | . | . | . | . | 1 | 19 | 9 | 4 | 2 | . | . | . | . | . | |||||||
| Five-spot Burnet | NI | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | . | . | |||||||
| Silver Y | NI | . | . | . | . | 3 | . | 1 | . | . | . | 7 | . | 7 | 2 | 2 | 4 | 5 | . | 5 | |||||||
| Mother Shipton | NI | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Burnet Companion | NI | . | . | . | 1 | 8 | . | 3 | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||