
| 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/Essex Skipper | 1016 | . | . | . | . | . | . | . | . | . | . | . | 281 | 321 | 178 | . | . | . | . | . | . | ||||||
| Small Skipper | 18 | . | . | . | . | . | . | . | . | . | . | . | 2 | 4 | 7 | . | . | . | . | . | . | ||||||
| Essex Skipper | 63 | . | . | . | . | . | . | . | . | . | . | . | 9 | 18 | 21 | . | . | . | . | . | . | ||||||
| Large Skipper | 241 | . | . | . | . | . | . | . | . | 37 | 71 | 77 | 4 | . | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Clouded Yellow | 5 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | 1 | . | 1 | . | . | . | ||||||
| Brimstone | 9 | . | . | . | 1 | 1 | . | . | . | . | . | . | . | 3 | 2 | . | . | . | . | . | . | ||||||
| Large White | 157 | . | . | . | . | . | . | 6 | 5 | 2 | 3 | . | 9 | 51 | 51 | . | . | . | 1 | . | . | ||||||
| Small White | 87 | . | . | . | . | . | . | 1 | . | . | . | . | . | 68 | 15 | . | 1 | . | 2 | . | . | ||||||
| Green-veined White | 35 | . | . | . | . | 2 | . | 1 | . | . | . | . | . | 16 | 9 | . | . | 1 | . | . | . | ||||||
| Green Hairstreak | 4 | . | . | . | 1 | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 280 | . | . | . | . | . | . | 6 | 2 | 1 | . | . | 1 | 23 | 24 | 3 | 21 | 7 | 42 | 51 | 56 | ||||||
| Small Blue | 19 | . | . | . | . | . | . | 4 | 6 | 6 | 1 | . | . | 2 | . | . | . | . | . | . | . | ||||||
| Brown Argus | 227 | . | . | . | . | . | . | 20 | 33 | 32 | 22 | 5 | 1 | 6 | 17 | 7 | 32 | 27 | 1 | . | . | ||||||
| Common Blue | 547 | . | . | . | . | . | . | 24 | 59 | 78 | 52 | 25 | . | 3 | 40 | 31 | 73 | 75 | 6 | 1 | . | ||||||
| Chalk-hill Blue | 283 | . | . | . | . | . | . | . | . | . | . | . | 2 | 24 | 60 | 35 | 53 | 43 | 1 | . | . | ||||||
| Adonis Blue | NI | . | . | . | . | . | . | 3 | 12 | 45 | 31 | 14 | . | . | . | 2 | 25 | 67 | 132 | 25 | 5 | ||||||
| Red Admiral | 45 | . | . | . | . | . | . | . | . | 2 | 1 | . | 6 | 5 | 3 | . | . | 1 | 6 | 7 | 4 | ||||||
| Painted Lady | 96 | . | . | . | . | . | . | . | . | 3 | 2 | . | 1 | 8 | 44 | . | . | 2 | 3 | 1 | 4 | ||||||
| Small Tortoiseshell | 92 | . | . | . | . | 1 | . | 1 | . | . | 1 | . | 17 | 14 | . | . | . | 3 | 21 | 1 | 6 | ||||||
| Peacock | 71 | . | . | 1 | . | 2 | . | 2 | 2 | . | . | . | . | 28 | 24 | . | . | . | . | . | . | ||||||
| Comma | 6 | . | . | . | 4 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Dark Green Fritillary | 4 | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 1 | . | . | . | . | . | . | ||||||
| Marsh Fritillary | 111 | . | . | . | . | . | 1 | 37 | 29 | 32 | 4 | . | . | . | . | . | . | . | . | . | . | ||||||
| Wall Brown | 2 | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Marbled White | 1099 | . | . | . | . | . | . | . | . | . | . | 22 | 440 | 255 | 77 | . | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 595 | . | . | . | . | . | . | . | . | . | . | . | 60 | 201 | 202 | 4 | . | . | . | . | . | ||||||
| Meadow Brown | 3189 | . | . | . | . | . | . | . | . | 4 | 75 | 246 | 598 | 735 | 556 | 53 | 66 | 44 | 7 | 1 | 1 | ||||||
| Small Heath | 636 | . | . | . | . | . | 1 | . | 80 | 110 | 75 | 40 | 24 | 15 | 4 | 35 | 56 | 64 | 31 | 2 | 5 | ||||||
| Ringlet | 550 | . | . | . | . | . | . | . | . | . | . | 58 | 209 | 110 | 11 | . | . | . | . | . | . | ||||||