
| 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 | ||||||||||||||||||||||||||
| Silver-spotted Skipper | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 2 | 4 | 2 | 16 | 4 | 2 | . | ||||
| Large Skipper | . | . | . | . | . | . | . | . | . | 4 | 4 | . | . | 10 | 12 | 8 | 8 | . | . | . | . | . | ||||
| Dingy Skipper | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Grizzled Skipper | . | . | . | . | 6 | . | 6 | 8 | 30 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Brimstone | . | . | 4 | 4 | . | . | 8 | 14 | 4 | 2 | . | . | . | . | 2 | . | . | . | 6 | . | 4 | . | ||||
| Large White | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 2 | 2 | . | . | . | ||||
| Small White | . | . | . | . | . | . | 4 | . | . | . | . | . | . | . | . | . | 4 | 2 | . | . | . | . | ||||
| Green-veined White | . | . | . | . | . | . | . | 4 | 2 | . | . | . | . | . | 2 | . | . | . | . | . | . | . | ||||
| Orange Tip | . | . | . | 2 | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Green Hairstreak | . | . | . | . | 6 | . | 2 | . | 6 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Purple Hairstreak | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | ||||
| White-letter Hairstreak | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | ||||
| Small Copper | . | . | . | . | . | . | 2 | . | 14 | 6 | 6 | 2 | . | . | . | 2 | 4 | 14 | 14 | 8 | 4 | 2 | ||||
| Brown Argus | . | . | . | . | . | . | 14 | 8 | 50 | 20 | . | . | . | 2 | 6 | 4 | 18 | 24 | 134 | 48 | 26 | 10 | ||||
| Common Blue | . | . | . | . | . | . | . | 2 | 14 | 10 | 6 | 2 | . | 2 | . | 4 | 2 | 6 | 22 | 2 | 12 | 4 | ||||
| Holly Blue | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 2 | . | . | . | . | . | ||||
| Red Admiral | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 2 | . | . | . | ||||
| Painted Lady | . | . | . | . | . | . | . | . | 20 | 6 | 2 | . | . | . | 2 | 8 | 36 | 8 | 4 | 4 | 2 | . | ||||
| Small Tortoiseshell | . | . | . | 2 | 2 | . | . | . | . | . | 2 | . | . | 2 | . | . | . | . | 2 | 4 | . | . | ||||
| Peacock | . | 2 | . | 2 | 2 | 2 | 6 | . | . | . | . | . | . | . | . | . | 40 | 10 | 2 | 2 | . | . | ||||
| Comma | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Dark Green Fritillary | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | 2 | . | . | . | . | ||||
| Silver-washed Fritillary | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | 4 | . | . | . | . | ||||
| Speckled Wood | . | . | . | . | 2 | . | . | . | . | . | . | . | 2 | 2 | . | . | . | 2 | . | . | . | . | ||||
| Marbled White | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 10 | . | 2 | . | . | . | . | . | ||||
| Gatekeeper/Hedge Brown | . | . | . | . | . | . | . | . | . | . | . | . | . | 12 | 74 | 140 | 208 | 110 | 46 | 8 | 8 | 4 | ||||
| Meadow Brown | . | . | . | . | . | . | . | . | . | . | . | 6 | 16 | 114 | 162 | 128 | 186 | 100 | 112 | 56 | 36 | 18 | ||||
| Small Heath | . | . | . | . | . | . | . | . | 10 | 26 | 26 | 10 | 2 | 12 | 8 | . | 2 | 4 | 48 | 34 | 60 | . | ||||
| Ringlet | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 10 | 4 | 6 | 6 | . | . | . | . | . | ||||