
| 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 | NI | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 2 | 10 | 4 | 5 | . | . | . | . | . | ||||
| Silver-spotted Skipper | 16 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 2 | 1 | 8 | 2 | 1 | . | ||||
| Large Skipper | 23 | . | . | . | . | . | . | . | . | . | 2 | 2 | . | . | 5 | 6 | 4 | 4 | . | . | . | . | . | ||||
| Dingy Skipper | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Grizzled Skipper | 30 | . | . | . | . | 3 | . | 3 | 4 | 15 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Brimstone | 27 | . | . | 2 | 2 | . | . | 4 | 7 | 2 | 1 | . | . | . | . | 1 | . | . | . | 3 | . | 2 | . | ||||
| Large White | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | 1 | . | . | . | ||||
| Small White | 5 | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | ||||
| Green-veined White | 4 | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||
| Orange Tip | 3 | . | . | . | 1 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Green Hairstreak | 10 | . | . | . | . | 3 | . | 1 | . | 3 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Purple Hairstreak | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||
| White-letter Hairstreak | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||
| Small Copper | 40 | . | . | . | . | . | . | 1 | . | 7 | 3 | 3 | 1 | . | . | . | 1 | 2 | 7 | 7 | 4 | 2 | 1 | ||||
| Brown Argus | 187 | . | . | . | . | . | . | 7 | 4 | 25 | 10 | . | . | . | 1 | 3 | 2 | 9 | 12 | 67 | 24 | 13 | 5 | ||||
| Common Blue | 45 | . | . | . | . | . | . | . | 1 | 7 | 5 | 3 | 1 | . | 1 | . | 2 | 1 | 3 | 11 | 1 | 6 | 2 | ||||
| Holly Blue | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | ||||
| Red Admiral | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | ||||
| Painted Lady | 48 | . | . | . | . | . | . | . | . | 10 | 3 | 1 | . | . | . | 1 | 4 | 18 | 4 | 2 | 2 | 1 | . | ||||
| Small Tortoiseshell | 9 | . | . | . | 1 | 1 | . | . | . | . | . | 1 | . | . | 1 | . | . | . | . | 1 | 2 | . | . | ||||
| Peacock | 42 | . | 1 | . | 1 | 1 | 1 | 3 | . | . | . | . | . | . | . | . | . | 20 | 5 | 1 | 1 | . | . | ||||
| Comma | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Dark Green Fritillary | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | ||||
| Silver-washed Fritillary | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 2 | . | . | . | . | ||||
| Speckled Wood | 4 | . | . | . | . | 1 | . | . | . | . | . | . | . | 1 | 1 | . | . | . | 1 | . | . | . | . | ||||
| Marbled White | 7 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 5 | . | 1 | . | . | . | . | . | ||||
| Gatekeeper / Hedge Brown | 297 | . | . | . | . | . | . | . | . | . | . | . | . | . | 6 | 37 | 70 | 104 | 55 | 23 | 4 | 4 | 2 | ||||
| Meadow Brown | 469 | . | . | . | . | . | . | . | . | . | . | . | 3 | 8 | 57 | 81 | 64 | 93 | 50 | 56 | 28 | 18 | 9 | ||||
| Small Heath | 172 | . | . | . | . | . | . | . | . | 5 | 13 | 13 | 5 | 1 | 6 | 4 | . | 1 | 2 | 24 | 17 | 30 | . | ||||
| Ringlet | 15 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 5 | 2 | 3 | 3 | . | . | . | . | . | ||||