
| 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 | 135 | . | . | . | . | . | . | . | . | . | 15 | 26 | 55 | 8 | 4 | 2 | . | . | . | . | . | . | |||||
| Silver-spotted Skipper | 120 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 14 | 21 | 12 | 61 | 19 | 3 | 1 | |||||
| Large Skipper | NI | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||
| Dingy Skipper | NI | . | . | . | 1 | 10 | 2 | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Grizzled Skipper | NI | . | . | . | 2 | 1 | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brimstone | 138 | 8 | 7 | 3 | 8 | 8 | 1 | 3 | 2 | 4 | 1 | . | 2 | 20 | 20 | 11 | 4 | 4 | 2 | 3 | 2 | . | |||||
| Large White | NI | . | . | . | . | . | . | . | . | . | . | 2 | 1 | 3 | . | . | 1 | . | . | . | 1 | . | |||||
| Small White | NI | . | . | . | . | . | . | . | . | . | 1 | 1 | 3 | 5 | 4 | 3 | . | 2 | 3 | 3 | 2 | . | |||||
| Green-veined White | NI | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | . | . | . | . | |||||
| Orange Tip | NI | . | . | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Green Hairstreak | NI | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | NI | . | . | . | . | 1 | . | . | . | . | 4 | . | 2 | 5 | . | 2 | 1 | . | . | . | . | . | |||||
| Small Blue | 2 | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brown Argus | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | 1 | 2 | . | . | . | |||||
| Common Blue | 142 | . | . | . | . | 1 | 10 | 8 | 29 | 4 | . | . | . | . | 6 | 15 | 18 | 10 | 19 | 9 | 6 | . | |||||
| Chalk-hill Blue | 1397 | . | . | . | . | . | . | . | . | . | . | 26 | 201 | 262 | 328 | 269 | 197 | 38 | 35 | 2 | . | . | |||||
| Adonis Blue | 36 | . | . | . | . | . | . | 3 | 7 | . | . | . | . | . | . | . | 1 | 9 | 13 | 2 | 3 | 1 | |||||
| Holly Blue | NI | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Red Admiral | 35 | . | 2 | . | . | . | 1 | . | . | 1 | . | 2 | . | 12 | 4 | 1 | 2 | 1 | . | . | 2 | 3 | |||||
| Small Tortoiseshell | 8 | . | 1 | . | . | . | . | 1 | . | . | . | . | . | . | 1 | 1 | 1 | . | 2 | . | . | . | |||||
| Peacock | NI | 1 | 3 | 1 | . | . | . | . | . | . | . | . | . | 4 | 8 | 1 | . | . | . | . | . | . | |||||
| Comma | 13 | . | 1 | . | . | . | . | . | . | . | . | . | 1 | 4 | 1 | 1 | . | . | . | . | 4 | . | |||||
| Dark Green Fritillary | 11 | . | . | . | . | . | . | . | . | . | 4 | 3 | . | . | . | 1 | . | . | . | . | . | . | |||||
| Speckled Wood | 21 | . | . | . | . | 1 | . | 1 | 1 | . | 1 | 3 | . | . | . | 1 | 2 | 3 | 2 | 2 | 2 | 1 | |||||
| Marbled White | 143 | . | . | . | . | . | . | . | . | . | 41 | 39 | 28 | . | . | . | . | . | . | . | . | . | |||||
| Gatekeeper / Hedge Brown | 425 | . | . | . | . | . | . | . | . | . | 3 | 39 | 135 | 78 | 61 | 43 | 18 | 7 | . | . | . | . | |||||
| Meadow Brown | 2053 | . | . | . | . | . | . | . | . | 8 | 25 | 92 | 214 | 212 | 277 | 318 | 260 | 140 | 180 | 144 | 106 | 36 | |||||
| Small Heath | NI | . | . | . | . | . | 4 | 6 | 17 | 17 | 33 | 18 | 12 | 1 | 1 | 1 | 2 | 1 | 6 | 9 | 4 | . | |||||
| Ringlet | NI | . | . | . | . | . | . | . | . | . | 21 | 6 | 3 | . | . | . | . | . | . | . | . | . | |||||