
| 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 | 46 | . | . | . | . | . | . | . | . | 1 | 8 | 8 | 25 | 1 | . | . | . | . | . | . | . | ||||||
| Large Skipper | 7 | . | . | . | . | . | . | . | . | . | 1 | 6 | . | . | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | 10 | . | . | . | . | 1 | 2 | . | . | 2 | . | . | . | . | . | 5 | . | . | . | . | . | ||||||
| Clouded Yellow | NI | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | ||||||
| Large White | NI | . | . | . | . | . | 2 | 1 | 3 | . | . | . | 1 | . | 14 | 17 | . | 2 | . | 1 | . | ||||||
| Small White | NI | 5 | . | 2 | . | 3 | . | . | 3 | . | 1 | . | 6 | . | 1 | 18 | 14 | 8 | 3 | 6 | . | ||||||
| Small Copper | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | ||||||
| Small Blue | 134 | . | . | . | . | 52 | 36 | 14 | 13 | 6 | . | . | 9 | 2 | . | 1 | . | . | . | . | 1 | ||||||
| Silver-studded Blue | NI | . | . | . | . | . | . | . | 17 | 105 | 20 | . | . | . | 2 | 7 | 7 | . | . | . | . | ||||||
| Common Blue | 297 | . | . | . | 2 | 12 | 30 | 14 | 10 | 6 | 2 | . | 4 | 8 | 29 | 35 | 59 | 55 | 19 | 5 | 2 | ||||||
| Chalk-hill Blue | 49 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 13 | 32 | 3 | . | . | . | . | ||||||
| Adonis Blue | 5 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | 5 | . | . | . | . | . | ||||||
| Holly Blue | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | ||||||
| Red Admiral | NI | . | . | . | . | 1 | . | . | . | 1 | . | 1 | . | . | 2 | . | 1 | . | 2 | 12 | 3 | ||||||
| Painted Lady | NI | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 1 | . | ||||||
| Small Tortoiseshell | NI | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | ||||||
| Peacock | NI | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Speckled Wood | NI | 2 | 1 | . | . | . | . | 2 | 9 | . | 1 | . | 1 | . | . | 2 | 2 | 3 | 1 | 10 | 2 | ||||||
| Wall Brown | 23 | . | . | . | . | 5 | 3 | . | . | . | . | . | . | . | . | 4 | 4 | 5 | 2 | . | . | ||||||
| Marbled White | 162 | . | . | . | . | . | . | . | . | 5 | 30 | 52 | 50 | 1 | 3 | 3 | . | . | . | . | . | ||||||
| Grayling | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 61 | . | . | . | . | . | . | . | . | . | . | 20 | 29 | 9 | 1 | . | 1 | . | . | 1 | . | ||||||
| Meadow Brown | NI | . | . | . | . | . | . | 1 | . | 89 | 29 | 34 | 60 | 36 | 39 | 15 | 17 | 10 | 2 | 3 | . | ||||||
| Small Heath | 118 | . | . | . | . | 7 | 6 | 4 | 23 | 24 | 7 | 7 | 2 | . | . | 3 | . | 8 | 9 | 2 | . | ||||||
| Ringlet | 27 | . | . | . | . | . | . | . | . | 1 | 15 | 4 | 3 | . | . | . | . | . | . | . | . | ||||||
| Six-spot Burnet | NI | . | . | . | . | . | . | . | . | 18 | 11 | . | . | 33 | . | . | . | . | . | . | . | ||||||
| Humming-bird Hawk-moth | NI | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | ||||||
| Silver Y | NI | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||||