
| 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 | 184 | . | . | . | . | . | . | . | . | 10 | 35 | 7 | 33 | 25 | 21 | 5 | . | . | . | . | |||||||
| Large Skipper | 39 | . | . | . | . | . | . | 7 | 9 | 4 | 6 | . | . | . | . | . | . | . | . | . | |||||||
| Dingy Skipper | 46 | . | . | . | 2 | 9 | 7 | 5 | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||||
| Grizzled Skipper | 24 | . | . | . | . | 7 | 1 | 2 | 2 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Clouded Yellow | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Brimstone | 57 | 5 | 2 | 3 | . | 2 | 6 | . | . | . | . | . | 3 | 3 | 6 | 3 | . | . | . | 1 | |||||||
| Large White | 93 | . | . | . | . | 6 | 1 | 6 | 1 | 1 | 2 | 1 | 17 | 10 | 12 | 5 | 2 | . | . | . | |||||||
| Small White | 200 | . | . | . | 2 | 21 | 14 | 2 | . | . | 3 | . | 12 | 20 | 16 | 15 | 7 | 6 | . | 1 | |||||||
| Green-veined White | 6 | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | |||||||
| Orange Tip | 21 | . | . | . | . | 9 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Green Hairstreak | 31 | . | . | . | 2 | 6 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 26 | . | . | . | 3 | . | 3 | . | . | . | 3 | . | 1 | . | . | 3 | 1 | . | 2 | . | |||||||
| Small Blue | 232 | . | . | . | . | 41 | 33 | 17 | 26 | 2 | . | . | 5 | 1 | 2 | . | 3 | 1 | . | 1 | |||||||
| Brown Argus | 43 | . | . | . | . | . | 4 | 2 | . | . | . | . | . | 2 | 4 | 12 | . | . | . | . | |||||||
| Common Blue | 220 | . | . | . | . | 1 | 1 | 13 | 12 | 1 | 2 | . | 8 | 12 | 28 | 50 | 9 | 4 | . | . | |||||||
| Chalk-hill Blue | 260 | . | . | . | . | . | . | . | . | 1 | . | 10 | 36 | 52 | 29 | 54 | 3 | . | . | . | |||||||
| Adonis Blue | 264 | . | . | . | . | 31 | 63 | 8 | 8 | . | . | . | . | . | . | 17 | 3 | 8 | 2 | . | |||||||
| Red Admiral | 54 | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | 3 | 20 | . | 2 | |||||||
| Painted Lady | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | |||||||
| Small Tortoiseshell | 101 | 2 | 2 | 2 | 2 | . | . | . | . | 3 | 2 | 8 | 8 | 5 | 13 | 3 | 4 | 17 | 2 | . | |||||||
| Peacock | 85 | 1 | 1 | 1 | 7 | . | . | . | . | . | . | 4 | 8 | 19 | 19 | 1 | . | . | . | . | |||||||
| Comma | 5 | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 1 | . | . | |||||||
| Dark Green Fritillary | 3 | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | |||||||
| Marbled White | 1176 | . | . | . | . | . | . | 7 | 140 | 235 | 295 | 35 | 86 | 16 | 9 | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 362 | . | . | . | . | . | . | . | . | 26 | 58 | 41 | 68 | 48 | 29 | 21 | . | . | . | . | |||||||
| Meadow Brown | 1291 | . | . | . | . | . | . | 6 | 33 | 160 | 245 | 141 | 205 | 142 | 115 | 1 | 1 | . | . | . | |||||||
| Small Heath | 78 | . | . | . | . | 1 | 16 | 12 | 8 | 4 | . | 2 | 1 | . | 4 | . | . | . | . | . | |||||||
| Ringlet | 86 | . | . | . | . | . | . | . | . | 30 | 27 | 1 | . | . | . | . | . | . | . | . | |||||||