
| 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 | 15 | . | . | . | . | . | . | . | . | . | . | 6 | 4 | 1 | . | 1 | . | . | . | ||||||||
| Large Skipper | 27 | . | . | . | . | . | . | 2 | 5 | 5 | 3 | 6 | 6 | . | . | . | . | . | . | ||||||||
| Dingy Skipper | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Clouded Yellow | 38 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 13 | 6 | 3 | 1 | . | ||||||||
| Brimstone | 87 | 5 | 3 | . | 2 | 1 | 1 | 1 | 1 | 2 | . | . | 7 | 1 | 12 | 16 | . | 5 | 6 | ||||||||
| Large White | 51 | . | . | . | . | . | 2 | 2 | . | . | . | . | 2 | 1 | 13 | 13 | 1 | 1 | . | ||||||||
| Small White | 7 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | ||||||||
| Green-veined White | 50 | . | . | 2 | 1 | 3 | 4 | 1 | 5 | . | . | . | 1 | 2 | 5 | 8 | 3 | 1 | . | ||||||||
| Orange Tip | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Green Hairstreak | 20 | . | . | . | 2 | . | 4 | 6 | 4 | 2 | 2 | . | . | . | . | . | . | . | . | ||||||||
| Purple Hairstreak | 4 | . | . | . | . | . | . | . | . | . | . | . | 4 | . | . | . | . | . | . | ||||||||
| Small Copper | 46 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 14 | 5 | 3 | 2 | 1 | ||||||||
| Common Blue | 48 | . | . | . | . | . | . | . | . | . | . | . | . | 6 | 11 | 13 | . | . | . | ||||||||
| Holly Blue | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Red Admiral | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | ||||||||
| Painted Lady | 6 | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | . | . | . | . | . | ||||||||
| Small Tortoiseshell | 7 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 1 | 2 | . | . | ||||||||
| Peacock | 65 | 8 | . | . | . | . | . | . | . | . | . | . | 5 | 18 | 14 | . | . | . | . | ||||||||
| Comma | 4 | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | 2 | ||||||||
| Small Pearl-bordered Fritillary | NI | . | . | . | . | . | 2 | 3 | . | . | . | . | . | . | 6 | 3 | . | . | . | ||||||||
| Pearl-bordered Fritillary | NI | . | . | . | . | 5 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Dark Green Fritillary | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Silver-washed Fritillary | 20 | . | . | . | . | . | . | . | . | . | . | 5 | 4 | 4 | 3 | . | . | . | . | ||||||||
| Marsh Fritillary | 21 | . | . | . | . | . | 1 | 4 | 10 | 5 | 1 | . | . | . | . | . | . | . | . | ||||||||
| Heath Fritillary | 102 | . | 3 | . | . | . | 6 | 27 | 32 | 22 | 15 | . | . | . | . | . | . | . | . | ||||||||
| Speckled Wood | 125 | 3 | . | 1 | . | 11 | 2 | 4 | 2 | 3 | 8 | 11 | 6 | . | 4 | 13 | 18 | 5 | 1 | ||||||||
| Wall Brown | 12 | . | . | . | . | . | . | . | . | . | . | . | . | . | 5 | 1 | . | . | . | ||||||||
| Marbled White | 15 | . | . | . | . | . | . | . | . | . | . | 7 | 8 | . | . | . | . | . | . | ||||||||
| Gatekeeper / Hedge Brown | 398 | . | . | . | . | . | . | . | . | . | . | 54 | 183 | 72 | 25 | 10 | . | . | . | ||||||||
| Meadow Brown | 150 | . | . | . | . | . | . | . | 2 | 15 | 40 | 33 | 25 | 9 | 9 | 5 | . | . | . | ||||||||
| Small Heath | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | ||||||||
| Ringlet | 152 | . | . | . | . | . | . | . | . | 18 | 54 | 28 | 31 | 12 | 2 | . | . | . | . | ||||||||
| Unknown Fritillary | NI | . | . | . | 6 | . | 4 | . | 3 | 1 | . | . | . | . | . | . | . | . | . | ||||||||