
| 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 | 9 | . | . | . | . | . | . | . | . | . | 2 | 1 | 4 | 1 | . | . | . | . | . | . | |||||||
| Large Skipper | 16 | . | . | . | . | . | . | . | . | . | 1 | 10 | 4 | . | . | . | . | . | . | . | |||||||
| Brimstone | 11 | . | . | 4 | . | . | . | . | . | . | . | . | . | 5 | . | . | . | . | . | . | |||||||
| Large White | 19 | . | . | . | . | . | . | . | . | . | 1 | . | . | 4 | 1 | 1 | 1 | 3 | . | . | |||||||
| Small White | 27 | . | . | . | . | . | . | . | . | . | . | . | . | 6 | 2 | 4 | 5 | 2 | 2 | . | |||||||
| Green Hairstreak | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 4 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | 1 | . | 1 | . | |||||||
| Silver-studded Blue | 8 | . | . | . | . | . | . | . | . | 1 | 4 | . | 2 | 1 | . | . | . | . | . | . | |||||||
| Common Blue | NI | . | . | . | . | . | . | . | 2 | . | 1 | 1 | 3 | 5 | . | . | . | . | . | . | |||||||
| Holly Blue | 1 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| White Admiral | NI | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Red Admiral | 21 | . | . | . | . | . | . | 1 | 1 | . | 2 | . | 2 | 3 | 1 | . | 5 | . | 1 | . | |||||||
| Painted Lady | 15 | . | . | . | . | . | . | 2 | 1 | 1 | 3 | . | . | 6 | 1 | 1 | . | . | . | . | |||||||
| Small Tortoiseshell | 23 | . | . | . | . | . | . | . | . | . | . | 1 | . | 15 | 6 | . | . | . | 1 | . | |||||||
| Peacock | NI | 2 | . | 3 | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | |||||||
| Comma | 3 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | 2 | . | . | |||||||
| Silver-washed Fritillary | NI | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Speckled Wood | 31 | . | . | 1 | . | 2 | 1 | 3 | 2 | . | . | 1 | . | 2 | 2 | 2 | 4 | 4 | 3 | . | |||||||
| Gatekeeper / Hedge Brown | NI | . | . | . | . | . | . | . | . | . | . | . | 3 | 6 | 7 | 6 | . | . | . | . | |||||||
| Meadow Brown | NI | . | . | . | . | . | . | . | . | . | 2 | 2 | 8 | 22 | 3 | . | . | 1 | . | . | |||||||
| Small Heath | 13 | . | . | . | . | . | . | . | . | . | 5 | . | . | 5 | . | . | . | . | . | . | |||||||
| Bright Wave | NI | . | . | . | . | . | . | . | 6 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Speckled Yellow | NI | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Common Heath | NI | . | . | . | 11 | . | 15 | 11 | 21 | 28 | 3 | 8 | 1 | . | . | . | . | . | . | . | |||||||
| Silver Y | NI | . | . | . | . | . | . | . | 2 | 3 | 23 | 6 | 19 | . | 288 | 38 | 5 | 3 | . | . | |||||||
| The Cinnabar | NI | . | . | . | . | . | . | . | . | 1 | . | . | 2 | . | . | . | . | . | . | . | |||||||