
| 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 | . | . | . | . | . | . | . | . | . | . | 4 | 9 | 1 | 2 | . | . | 1 | . | . | |||||||
| Silver-spotted Skipper | 50 | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 13 | 9 | 17 | 6 | 3 | . | |||||||
| Large Skipper | 20 | . | . | . | . | . | . | . | . | 1 | 2 | 3 | 1 | 1 | 5 | 4 | . | 1 | . | . | |||||||
| Dingy Skipper | 2 | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Grizzled Skipper | 5 | . | . | . | . | 3 | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Brimstone | 23 | 3 | . | 2 | 3 | 2 | 6 | . | . | . | . | . | 1 | 2 | . | . | . | . | . | . | |||||||
| Large White | 5 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | 1 | . | 3 | . | . | |||||||
| Small White | 14 | . | . | 1 | . | 1 | . | . | 1 | . | . | . | 1 | . | 3 | 4 | . | 2 | 1 | . | |||||||
| Green-veined White | 4 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 1 | 2 | . | . | . | . | |||||||
| Orange Tip | 2 | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Green Hairstreak | 2 | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 14 | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | 1 | 3 | 5 | 2 | . | . | |||||||
| Brown Argus | 117 | . | . | . | . | . | 22 | 10 | 12 | 10 | 6 | 2 | . | 1 | 6 | 3 | 13 | 20 | 11 | . | |||||||
| Common Blue | 58 | . | . | . | . | . | . | 3 | 10 | 4 | 3 | 2 | . | . | 4 | 5 | 11 | 11 | 4 | . | |||||||
| Holly Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Painted Lady | 2 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||||
| Peacock | 17 | 3 | 2 | 2 | 1 | . | 2 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Comma | 7 | 1 | . | . | . | 1 | . | . | . | . | . | . | 1 | 2 | 1 | . | . | . | . | . | |||||||
| Silver-washed Fritillary | 2 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | |||||||
| Speckled Wood | 5 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 2 | . | 1 | . | 1 | . | |||||||
| Marbled White | 11 | . | . | . | . | . | . | . | . | . | . | 1 | 2 | 3 | 3 | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 100 | . | . | . | . | . | . | . | . | . | . | . | 13 | 14 | 15 | 28 | 16 | 6 | 2 | . | |||||||
| Meadow Brown | 225 | . | . | . | . | . | . | . | . | . | 2 | 28 | 13 | 14 | 40 | 20 | 32 | 29 | 27 | . | |||||||
| Small Heath | 35 | . | . | . | . | . | 1 | 3 | 2 | . | 4 | 2 | . | . | 2 | 2 | 4 | 4 | 10 | . | |||||||
| Ringlet | 26 | . | . | . | . | . | . | . | . | . | . | 10 | 5 | 3 | . | . | . | . | . | . | |||||||