
| 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 | ||||||||||||||||||||||||||
| Large Skipper | 68 | . | . | . | . | . | 17 | 16 | 12 | 9 | . | 6 | . | . | . | . | . | . | |||||||||
| Dingy Skipper | 70 | . | . | 7 | 23 | 14 | 3 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Brimstone | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | |||||||||
| Large White | 132 | . | 4 | 1 | 8 | 14 | 5 | 6 | 3 | 1 | . | 12 | 17 | 10 | 10 | 6 | 4 | 3 | |||||||||
| Small White | 12 | . | . | . | 1 | 1 | . | . | . | . | 5 | . | . | . | 1 | 3 | 1 | . | |||||||||
| Green-veined White | 99 | 1 | . | 11 | 9 | 9 | . | . | . | 2 | 3 | 1 | 7 | 8 | 18 | . | 2 | . | |||||||||
| Orange Tip | 27 | . | 12 | 7 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Green Hairstreak | 118 | 4 | 25 | 42 | 6 | 11 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Northern Brown Argus | 451 | . | . | . | . | . | 34 | 45 | 73 | 78 | 76 | 52 | 57 | 13 | . | . | . | . | |||||||||
| Common Blue | 121 | . | . | . | 6 | 12 | 13 | 14 | 6 | 2 | . | . | 3 | 11 | . | 9 | 15 | 1 | |||||||||
| Holly Blue | 25 | 4 | 16 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Red Admiral | 32 | . | . | . | . | . | . | . | 2 | 2 | . | 2 | . | . | 8 | 2 | 6 | 2 | |||||||||
| Painted Lady | 28 | . | . | . | . | . | . | . | 1 | 1 | . | 1 | . | . | 5 | 12 | . | 4 | |||||||||
| Small Tortoiseshell | 135 | 4 | 4 | 1 | 2 | . | . | . | 5 | 5 | 18 | 9 | 23 | 1 | 2 | 15 | 27 | 1 | |||||||||
| Peacock | 91 | . | 3 | 2 | . | . | . | . | . | . | . | . | . | 12 | 28 | 12 | 8 | 1 | |||||||||
| Small Pearl-bordered Fritillary | 242 | . | . | . | 1 | 46 | 64 | 37 | 30 | 6 | 2 | 1 | . | . | . | . | . | . | |||||||||
| Pearl-bordered Fritillary | 177 | . | . | 46 | 56 | 16 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| High Brown Fritillary | 114 | . | . | . | . | . | . | . | 5 | 36 | 18 | 26 | 11 | 11 | 1 | . | . | . | |||||||||
| Wall Brown | 186 | . | . | 4 | 14 | 15 | 6 | . | . | . | . | . | . | 10 | 31 | 24 | 26 | 3 | |||||||||
| Grayling | 79 | . | . | . | . | . | . | . | . | . | 10 | 16 | 36 | 8 | 2 | 2 | . | . | |||||||||
| Meadow Brown | 410 | . | . | . | . | . | . | . | 23 | 90 | 88 | 88 | 54 | 38 | 7 | . | . | . | |||||||||
| Small Heath | 257 | . | . | . | 41 | 58 | 30 | 30 | 12 | 10 | 6 | 4 | 2 | . | . | . | . | . | |||||||||
| Cistus Forester | NI | . | . | . | . | . | 4 | 1 | . | . | . | . | . | . | . | . | . | . | |||||||||
| Six-spot Burnet | NI | . | . | . | . | . | . | . | . | . | 6 | 9 | 7 | . | . | . | . | . | |||||||||
| Chimney Sweeper | NI | . | . | . | . | . | . | 4 | 1 | 1 | . | . | . | . | . | . | . | . | |||||||||
| Speckled Yellow | NI | . | . | 11 | 17 | 15 | 3 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Silver Y | NI | . | . | . | . | . | 6 | 2 | 4 | 1 | 1 | 3 | 4 | 4 | 8 | 9 | 1 | 4 | |||||||||
| Least Minor | NI | . | . | . | . | . | 1 | 1 | 12 | . | . | . | . | . | . | . | . | . | |||||||||
| Mother Shipton | NI | . | 1 | 13 | 35 | 12 | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Burnet Companion | NI | . | 4 | 20 | 3 | 1 | 3 | 1 | 1 | . | . | . | . | . | . | . | . | . | |||||||||