
| 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 | 358 | . | . | . | . | . | . | . | . | . | 68 | 95 | 75 | 61 | 12 | 9 | 4 | . | . | . | |||||||
| Large Skipper | 99 | . | . | . | . | . | . | 1 | 3 | 20 | 17 | 34 | 5 | 1 | . | . | . | . | . | . | |||||||
| Clouded Yellow | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Brimstone | 17 | . | . | 3 | 2 | 1 | 1 | . | . | . | . | . | . | . | . | 4 | 1 | 1 | . | . | |||||||
| Large White | NI | . | . | . | . | . | . | . | . | . | . | . | 2 | 2 | 1 | . | . | . | . | . | |||||||
| Small White | 29 | . | . | . | . | . | . | . | . | . | . | 2 | 1 | 4 | 4 | 5 | 11 | 2 | . | . | |||||||
| Green-veined White | 32 | . | . | . | . | 5 | 1 | 1 | . | . | . | 1 | . | 1 | 9 | 13 | . | 1 | . | . | |||||||
| Orange Tip | 44 | . | . | 3 | 14 | 8 | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Brown Hairstreak | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | 1 | . | . | |||||||
| Small Copper | NI | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 3 | 1 | 1 | 1 | . | . | |||||||
| Brown Argus | NI | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Common Blue | 70 | . | . | . | . | . | 6 | 15 | . | 4 | . | . | . | . | 6 | 17 | 13 | 1 | . | 4 | |||||||
| Holly Blue | NI | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Red Admiral | 6 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 4 | . | 2 | . | . | |||||||
| Painted Lady | 116 | . | . | . | . | . | 2 | 2 | 1 | . | 6 | 1 | 3 | 32 | 59 | 5 | 2 | . | . | . | |||||||
| Small Tortoiseshell | 85 | 1 | 1 | 1 | . | . | . | . | . | . | 24 | 27 | 4 | 6 | 1 | 1 | . | 2 | 2 | 1 | |||||||
| Peacock | 74 | 3 | 4 | 5 | 2 | 1 | . | . | . | . | . | . | . | 10 | 20 | 17 | 6 | 1 | . | 1 | |||||||
| Comma | 6 | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | 3 | . | 1 | . | . | |||||||
| Speckled Wood | 24 | . | . | . | . | . | . | . | 3 | . | 1 | . | . | . | . | 1 | 2 | 5 | 3 | 5 | |||||||
| Marbled White | 27 | . | . | . | . | . | . | . | . | . | 4 | 6 | 14 | 1 | . | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 251 | . | . | . | . | . | . | . | . | . | 10 | 52 | 53 | 97 | 24 | 9 | 1 | . | . | . | |||||||
| Meadow Brown | 178 | . | . | . | . | . | . | . | . | 6 | 58 | 55 | 3 | 18 | 4 | 2 | . | . | . | . | |||||||
| Small Heath | 3 | . | . | . | . | . | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Ringlet | 80 | . | . | . | . | . | . | . | . | . | 16 | 28 | 9 | 17 | 2 | . | . | . | . | . | |||||||
| Narrow-bordered 5-spot Burnet | NI | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | |||||||
| Silver Y | NI | . | . | . | . | . | 15 | . | . | 1 | . | . | . | 16 | . | . | . | 4 | . | . | |||||||
| Mother Shipton | NI | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||