
| 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 | 4 | . | . | . | . | . | . | . | 1 | 3 | . | . | . | . | . | . | . | . | |||||||||
| Essex Skipper | NI | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||||
| Large Skipper | 26 | . | . | . | . | . | . | . | 8 | 9 | 2 | 3 | . | . | . | . | . | . | |||||||||
| Brimstone | NI | . | . | 2 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Large White | 8 | . | . | . | . | . | . | . | . | 1 | 1 | 4 | . | . | . | . | . | . | |||||||||
| Small White | 6 | . | . | . | . | . | . | . | . | . | . | 2 | . | 1 | . | . | . | 1 | |||||||||
| Orange Tip | NI | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Silver-studded Blue | 46 | . | . | . | . | . | . | 1 | 10 | 17 | 2 | 8 | . | . | . | . | . | . | |||||||||
| Red Admiral | 3 | . | . | . | . | . | . | . | . | 2 | . | 1 | . | . | . | . | . | . | |||||||||
| Painted Lady | NI | . | . | . | 1 | 5 | . | 1 | . | . | . | . | . | . | . | 2 | 3 | . | |||||||||
| Small Tortoiseshell | 3 | . | . | . | . | 1 | . | . | . | . | . | . | . | 1 | . | . | . | . | |||||||||
| Comma | NI | . | 1 | . | . | . | . | . | 3 | . | 1 | . | . | . | . | . | . | . | |||||||||
| Speckled Wood | NI | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Gatekeeper / Hedge Brown | 210 | . | . | . | . | . | . | . | 2 | . | 5 | 53 | 44 | 30 | 6 | 10 | 1 | . | |||||||||
| Meadow Brown | 55 | . | . | . | . | . | . | . | 11 | 16 | 12 | 5 | 2 | 1 | 1 | . | . | . | |||||||||
| Small Heath | 109 | . | . | . | . | . | . | 4 | 11 | 15 | 9 | 6 | 2 | . | 2 | 10 | 13 | 14 | |||||||||
| Ringlet | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | |||||||||