
| 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 | 340 | . | . | . | . | . | . | . | . | 8 | 51 | 82 | 92 | 19 | 13 | . | . | . | |||||||||
| Large Skipper | 143 | . | . | . | . | . | . | 2 | 2 | 12 | 31 | 36 | 21 | 9 | 3 | . | . | . | |||||||||
| Pale Clouded Yellow | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | |||||||||
| Clouded Yellow | 9 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | 1 | . | . | |||||||||
| Brimstone | 167 | 2 | 15 | 12 | 4 | 19 | 7 | . | . | . | . | . | 23 | 10 | 42 | 17 | 3 | . | |||||||||
| Large White | 138 | . | . | . | . | . | 1 | . | . | . | 5 | 10 | 43 | 17 | 15 | 7 | 1 | . | |||||||||
| Small White | 60 | . | . | . | . | . | 1 | . | . | . | 2 | 2 | 14 | 15 | 15 | . | . | . | |||||||||
| Green-veined White | 89 | . | . | 3 | 3 | 5 | 5 | . | . | . | 1 | 4 | 14 | 19 | 10 | 1 | . | 1 | |||||||||
| Orange Tip | 19 | . | . | 1 | 5 | 1 | 4 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Purple Hairstreak | 3 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | |||||||||
| Small Copper | 48 | . | . | . | . | 1 | . | . | . | . | . | . | 13 | 8 | 9 | 2 | . | . | |||||||||
| Silver-studded Blue | 7 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | |||||||||
| Brown Argus | 7 | . | . | . | . | . | . | . | . | . | . | . | . | 4 | . | 1 | . | . | |||||||||
| Common Blue | 23 | . | . | . | . | . | 2 | 1 | . | . | . | . | 3 | 9 | 2 | 1 | . | . | |||||||||
| Holly Blue | 16 | . | . | . | . | 2 | . | . | . | . | . | . | 1 | 4 | 5 | . | . | . | |||||||||
| Red Admiral | 135 | . | . | . | . | 2 | 2 | 1 | . | . | 1 | 6 | 13 | 31 | 41 | 6 | 1 | . | |||||||||
| Painted Lady | 674 | . | . | . | 4 | 63 | 20 | 3 | 4 | . | . | 3 | 115 | 101 | 117 | 6 | 1 | . | |||||||||
| Small Tortoiseshell | 256 | . | 6 | 3 | 3 | 1 | . | 3 | 7 | 3 | 20 | 15 | 11 | 19 | 50 | 27 | 10 | . | |||||||||
| Peacock | 383 | 3 | 12 | 5 | 3 | 2 | 3 | . | . | . | . | . | 82 | 62 | 92 | 6 | 2 | . | |||||||||
| Comma | 25 | 1 | 2 | . | . | . | . | . | . | . | . | 2 | 5 | 4 | 1 | . | 2 | . | |||||||||
| Dark Green Fritillary | 2 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||||||
| Speckled Wood | 35 | . | . | . | . | . | 2 | . | 1 | . | 1 | . | 2 | 2 | 1 | 9 | 4 | . | |||||||||
| Marbled White | 106 | . | . | . | . | . | . | . | . | 4 | 35 | 47 | 13 | 4 | . | . | . | . | |||||||||
| Grayling | 2 | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | |||||||||
| Gatekeeper / Hedge Brown | 572 | . | . | . | . | . | . | . | . | 3 | . | 37 | 195 | 130 | 84 | 2 | . | . | |||||||||
| Meadow Brown | 601 | . | . | . | . | . | . | . | 1 | 21 | 96 | 102 | 119 | 46 | 74 | . | . | . | |||||||||
| Small Heath | 24 | . | . | . | . | . | . | . | 1 | 1 | 4 | . | . | . | . | 2 | 4 | 1 | |||||||||
| Ringlet | 4 | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | . | . | . | . | |||||||||