
| 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 | 147 | . | . | . | . | . | . | . | . | 17 | 17 | 23 | 34 | 42 | 8 | 2 | . | . | . | ||||||||
| Large Skipper | 182 | . | . | . | . | . | . | 6 | 9 | 24 | 39 | 28 | 47 | 27 | 2 | . | . | . | . | ||||||||
| Grizzled Skipper | NI | . | . | . | 1 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Clouded Yellow | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | ||||||||
| Brimstone | NI | 8 | 11 | 17 | 23 | 7 | . | 1 | 2 | 2 | 1 | 11 | 16 | 40 | 5 | 27 | 15 | 19 | . | ||||||||
| Large White | 29 | . | . | . | . | . | . | . | 2 | 1 | . | 1 | 4 | 10 | 3 | 2 | . | 2 | . | ||||||||
| Small White | 46 | . | . | . | . | . | . | . | . | . | 1 | 2 | 5 | 4 | 11 | 7 | 2 | 4 | . | ||||||||
| Green-veined White | 35 | . | 3 | 1 | 2 | . | . | . | . | . | . | 1 | 5 | 8 | 2 | 4 | . | 1 | . | ||||||||
| Orange Tip | NI | . | . | 1 | 7 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Purple Hairstreak | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||||||
| Small Copper | NI | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 6 | 1 | . | 5 | . | ||||||||
| Brown Argus | 61 | . | . | . | . | . | . | . | . | . | . | . | 3 | 13 | 9 | 22 | 5 | . | . | ||||||||
| Common Blue | 110 | . | . | . | . | . | . | . | . | . | . | . | . | 22 | 28 | 20 | 13 | 3 | . | ||||||||
| White Admiral | 31 | . | . | . | . | . | . | . | . | 11 | 7 | 5 | 4 | 2 | . | . | . | . | . | ||||||||
| Purple Emperor | 5 | . | . | . | . | . | . | . | . | 1 | 1 | 2 | 1 | . | . | . | . | . | . | ||||||||
| Red Admiral | 20 | . | . | . | 2 | . | . | 1 | . | 1 | 3 | 1 | 3 | . | . | 2 | . | 2 | . | ||||||||
| Painted Lady | 11 | . | . | . | 1 | . | . | . | . | . | . | . | . | 1 | 2 | 1 | 1 | 1 | . | ||||||||
| Peacock | NI | 2 | 2 | . | 2 | . | . | . | . | . | . | . | 2 | . | 1 | 4 | 1 | 1 | . | ||||||||
| Comma | 45 | . | 2 | . | . | . | . | . | . | 1 | . | 2 | 3 | 1 | . | . | . | 12 | 1 | ||||||||
| Small Pearl-bordered Fritillary | 7 | . | . | . | . | . | 4 | 5 | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Pearl-bordered Fritillary | NI | . | . | . | 4 | 7 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Dark Green Fritillary | 2 | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | ||||||||
| Silver-washed Fritillary | 639 | . | . | . | . | . | . | . | . | 33 | 69 | 96 | 131 | 102 | 141 | 34 | 7 | . | . | ||||||||
| Speckled Wood | 196 | . | . | 4 | 4 | 17 | 14 | 24 | 20 | 11 | 7 | 3 | 1 | 3 | 7 | 11 | 17 | 6 | . | ||||||||
| Marbled White | 62 | . | . | . | . | . | . | . | 1 | 6 | 6 | 17 | 17 | 12 | 1 | . | . | . | . | ||||||||
| Gatekeeper / Hedge Brown | 512 | . | . | . | . | . | . | . | . | . | . | 49 | 90 | 157 | 148 | 48 | . | . | . | ||||||||
| Meadow Brown | 349 | . | . | . | . | . | . | 3 | 11 | 46 | 78 | 48 | 45 | 50 | 30 | 17 | 3 | . | . | ||||||||
| Small Heath | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Ringlet | 523 | . | . | . | . | . | . | . | . | 70 | 131 | 134 | 79 | 65 | 12 | 4 | . | . | . | ||||||||