
| 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 | NI | . | . | . | . | . | . | . | . | 1 | 3 | 4 | 7 | 7 | 10 | 9 | . | . | . | . | . | ||||||
| Large Skipper | 19 | . | . | . | . | . | . | 8 | 9 | 3 | 1 | 1 | . | . | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | 9 | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Grizzled Skipper | 75 | . | 2 | 1 | 7 | 7 | 8 | 4 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Clouded Yellow | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | ||||||
| Brimstone | 65 | 5 | 1 | 2 | 2 | 2 | 6 | . | . | . | . | . | . | 2 | 3 | 6 | 2 | . | 2 | . | . | ||||||
| Large White | NI | . | 1 | . | 3 | 5 | 2 | 3 | 1 | . | 1 | . | 6 | 5 | 20 | 17 | . | 2 | 9 | 6 | 3 | ||||||
| Small White | NI | . | . | . | . | 1 | . | . | . | . | . | . | 2 | 1 | 1 | 1 | 1 | . | . | 1 | . | ||||||
| Green-veined White | NI | . | 1 | 1 | 3 | 5 | 4 | 2 | 1 | . | 1 | . | 1 | 1 | 7 | 13 | 1 | 5 | 3 | 3 | . | ||||||
| Orange Tip | 38 | . | . | 2 | 6 | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | NI | . | . | . | . | . | . | . | 7 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | NI | . | . | . | . | . | . | 3 | . | . | . | . | . | 1 | . | 4 | 5 | . | 2 | . | 2 | ||||||
| Brown Argus | NI | . | . | . | . | 7 | 15 | 6 | 6 | 2 | . | . | . | 10 | 13 | 32 | 20 | 13 | 5 | 3 | 1 | ||||||
| Common Blue | 252 | . | . | . | . | 7 | 25 | 35 | 13 | 5 | 3 | . | . | 9 | 40 | 56 | 17 | 11 | 15 | 8 | 3 | ||||||
| Holly Blue | 4 | . | . | 2 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Red Admiral | NI | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | . | . | . | . | . | ||||||
| Painted Lady | NI | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | 1 | . | . | . | . | ||||||
| Small Tortoiseshell | 27 | 1 | 1 | 4 | . | 2 | . | . | . | . | 2 | . | 2 | . | . | 2 | 1 | 2 | . | 3 | 1 | ||||||
| Peacock | NI | 1 | 2 | 2 | 1 | . | . | . | . | . | . | . | . | 4 | 2 | 1 | . | . | . | . | . | ||||||
| Comma | 5 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | ||||||
| Small Pearl-bordered Fritillary | 12 | . | . | . | . | . | . | 5 | 5 | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||||
| Dark Green Fritillary | NI | . | . | . | . | . | . | . | . | . | . | . | 3 | . | 12 | 10 | . | . | . | . | . | ||||||
| Silver-washed Fritillary | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 1 | . | . | . | . | ||||||
| Speckled Wood | NI | 3 | 9 | 7 | 7 | 14 | 9 | 5 | 7 | 3 | 5 | 1 | 2 | 10 | 16 | 9 | 21 | 17 | 15 | 13 | 9 | ||||||
| Wall Brown | NI | . | . | . | 1 | 3 | 2 | . | . | . | . | . | . | . | 6 | 10 | 1 | . | 2 | . | . | ||||||
| Marbled White | NI | . | . | . | . | . | . | . | 2 | 53 | 32 | 16 | 14 | 7 | 4 | . | . | . | . | . | . | ||||||
| Grayling | NI | . | . | . | . | . | . | . | . | . | . | . | 4 | 6 | 14 | 21 | 1 | 2 | . | . | . | ||||||
| Gatekeeper / Hedge Brown | NI | . | . | . | . | . | . | . | . | . | . | . | 5 | 66 | 114 | 227 | 86 | 28 | 23 | 8 | . | ||||||
| Meadow Brown | NI | . | . | . | . | . | . | 5 | 16 | 30 | 20 | 30 | 41 | 81 | 154 | 180 | 74 | 61 | 27 | 29 | 1 | ||||||
| Small Heath | 282 | . | . | . | 2 | 3 | 12 | 80 | 42 | 110 | 68 | 33 | 10 | 7 | 13 | 28 | 3 | 6 | 27 | 9 | 1 | ||||||
| Ringlet | NI | . | . | . | . | . | . | . | . | 8 | 42 | 36 | 20 | 3 | 7 | 4 | . | . | . | . | . | ||||||