
| 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/Essex Skipper | NI | . | . | . | . | . | . | 2 | 5 | 9 | 24 | 20 | 10 | 5 | 10 | 3 | . | . | . | . | |||||||
| Large Skipper | 5 | . | . | . | . | . | . | . | 2 | . | 1 | . | . | 2 | . | . | . | . | . | . | |||||||
| Dingy Skipper | 7 | . | . | . | 2 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Grizzled Skipper | 10 | . | . | . | 1 | 4 | 2 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Brimstone | 19 | 6 | . | 2 | . | . | . | . | . | . | . | . | 2 | . | 5 | 2 | . | . | . | . | |||||||
| Large White | 29 | 2 | . | . | 1 | 4 | 2 | 3 | . | . | 1 | 3 | 2 | 2 | 4 | 2 | . | . | . | . | |||||||
| Small White | 52 | . | 1 | 1 | 8 | 5 | 1 | 2 | 1 | . | 2 | 2 | 5 | 9 | 2 | 1 | 3 | 1 | . | . | |||||||
| Green-veined White | 22 | 1 | 1 | 1 | 7 | 3 | . | . | . | . | . | . | 2 | 3 | . | . | . | . | . | . | |||||||
| Orange Tip | 85 | 14 | 8 | 14 | 22 | 6 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Purple Hairstreak | 3 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | |||||||
| Small Copper | 21 | . | 1 | . | 1 | . | 2 | . | . | . | . | . | 1 | . | 2 | 3 | 2 | 2 | . | 2 | |||||||
| Common Blue | 161 | . | . | . | 6 | 14 | 27 | 5 | 3 | . | . | . | 3 | 5 | 33 | 22 | 8 | 1 | . | . | |||||||
| Holly Blue | 19 | . | . | . | . | 1 | . | . | . | . | . | . | 5 | 9 | 3 | 1 | . | . | . | . | |||||||
| White Admiral | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Red Admiral | 5 | . | . | . | . | . | . | . | 1 | 2 | 1 | 1 | . | . | . | . | . | . | . | . | |||||||
| Painted Lady | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | |||||||
| Small Tortoiseshell | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||
| Peacock | 116 | 16 | 4 | 11 | 3 | 2 | 2 | 1 | 1 | . | . | . | 12 | 34 | 11 | 5 | 1 | . | . | 1 | |||||||
| Comma | 35 | 2 | . | . | . | . | . | . | 1 | . | 4 | 1 | . | 6 | 3 | . | . | 3 | 4 | 3 | |||||||
| Silver-washed Fritillary | 2 | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | |||||||
| Speckled Wood | 76 | . | 1 | 2 | 2 | 6 | 2 | 1 | 2 | 1 | 1 | . | 5 | 13 | 14 | 11 | 2 | 1 | 1 | . | |||||||
| Gatekeeper / Hedge Brown | 152 | . | . | . | . | . | . | . | . | . | . | . | 21 | 36 | 33 | 27 | 12 | 2 | . | . | |||||||
| Meadow Brown | 225 | . | . | . | . | . | . | 1 | 18 | 22 | 40 | 56 | 32 | 26 | 15 | 8 | 2 | . | . | . | |||||||
| Small Heath | 85 | . | . | . | 2 | 5 | 10 | 7 | 5 | 3 | 2 | . | . | . | . | 7 | 15 | 6 | . | . | |||||||
| Ringlet | 85 | . | . | . | . | . | . | . | 1 | . | 10 | 18 | 23 | 11 | 10 | 8 | . | . | . | . | |||||||