
| 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 | 8 | 3 | 1 | . | . | . | . | |||||||||
| Large Skipper | 2 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||||||
| Dingy Skipper | 2 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||||
| Grizzled Skipper | 5 | . | . | . | . | 2 | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||||
| Brimstone | 42 | 9 | 9 | 1 | 6 | 4 | . | . | . | . | . | 1 | . | 1 | 1 | . | 1 | . | |||||||||
| Large White | 28 | . | . | . | 3 | . | . | 2 | 1 | . | 1 | 3 | 5 | 1 | 2 | 1 | . | 1 | |||||||||
| Small White | 54 | . | . | . | . | . | . | 2 | . | . | 1 | 12 | 22 | 3 | . | . | 3 | . | |||||||||
| Green-veined White | 118 | . | . | 19 | 16 | 13 | 2 | . | . | . | . | 3 | 9 | 14 | 7 | . | 1 | . | |||||||||
| Orange Tip | 46 | 4 | 6 | 9 | 6 | 5 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | |||||||||
| Small Copper | NI | . | . | . | . | 1 | . | . | . | . | . | . | . | 1 | 1 | . | 3 | . | |||||||||
| Brown Argus | 8 | . | . | . | . | . | 1 | 1 | . | . | . | . | 1 | 3 | 1 | . | . | . | |||||||||
| Common Blue | NI | . | . | . | . | 1 | 3 | 5 | 1 | . | 3 | . | 3 | 7 | . | 1 | 16 | . | |||||||||
| Holly Blue | 12 | 1 | . | 1 | 2 | 1 | . | 1 | . | . | . | . | . | 1 | . | . | . | . | |||||||||
| White Admiral | 7 | . | . | . | . | . | . | . | . | . | 3 | . | 1 | 1 | . | . | . | . | |||||||||
| Red Admiral | 5 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 4 | . | |||||||||
| Small Tortoiseshell | 11 | 1 | . | . | . | . | . | . | . | 1 | . | . | . | . | 4 | 1 | 1 | . | |||||||||
| Peacock | 142 | 11 | 13 | 4 | 15 | 10 | 5 | 1 | . | . | . | 9 | 5 | 16 | 20 | 3 | . | . | |||||||||
| Comma | 35 | 4 | 3 | 1 | 2 | . | . | . | . | . | 3 | . | 1 | . | . | . | 7 | 1 | |||||||||
| Silver-washed Fritillary | 11 | . | . | . | . | . | . | . | . | . | 1 | 2 | . | 4 | 1 | 1 | . | . | |||||||||
| Speckled Wood | 79 | . | . | 3 | 2 | 1 | 2 | 5 | 8 | 1 | . | 4 | 3 | 6 | 1 | 12 | 12 | 3 | |||||||||
| Marbled White | 2 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||||||
| Grayling | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | . | . | |||||||||
| Gatekeeper / Hedge Brown | 160 | . | . | . | . | . | . | . | . | . | . | 16 | 25 | 44 | 52 | 7 | . | . | |||||||||
| Meadow Brown | 132 | . | . | . | . | . | . | . | 3 | 5 | 29 | 25 | 25 | 7 | 4 | 1 | . | . | |||||||||
| Ringlet | 191 | . | . | . | . | . | . | . | 1 | 7 | 75 | 37 | 7 | 2 | 2 | . | . | . | |||||||||