
| 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 | 157 | . | . | . | . | . | . | . | 5 | 6 | 16 | 42 | 31 | 43 | 11 | 2 | 1 | . | . | . | . | ||||||
| Large Skipper | 140 | . | . | . | . | . | . | 1 | 17 | 23 | 24 | 45 | 20 | 6 | 4 | . | . | . | . | . | . | ||||||
| Pale Clouded Yellow | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Clouded Yellow | 6 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 3 | 1 | . | . | 1 | ||||||
| Brimstone | 47 | 5 | 6 | 5 | 3 | 1 | 2 | 1 | . | . | . | . | . | 1 | 1 | 2 | 1 | 3 | 2 | 2 | 2 | ||||||
| Large White | 81 | . | . | . | . | 1 | 1 | 2 | 1 | . | . | 1 | 1 | 6 | 19 | 16 | 13 | 1 | 6 | 6 | 2 | ||||||
| Small White | 57 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 7 | 8 | 6 | 2 | 9 | 12 | 2 | ||||||
| Green-veined White | 45 | . | . | . | 1 | . | . | 1 | . | . | 1 | 1 | . | 3 | 15 | 5 | 7 | . | 4 | 4 | . | ||||||
| Green Hairstreak | 3 | . | . | . | . | 1 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 51 | . | . | . | 1 | 3 | 1 | . | 1 | . | 1 | . | 1 | 1 | 5 | 4 | 6 | 3 | 5 | 2 | 5 | ||||||
| Silver-studded Blue | 791 | . | . | . | . | . | 8 | 11 | 22 | 21 | 190 | 165 | 143 | 98 | 56 | 37 | 18 | 8 | 8 | 4 | . | ||||||
| Brown Argus | 15 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | 4 | 7 | . | ||||||
| Common Blue | 109 | . | . | . | . | . | 8 | 10 | 4 | 1 | . | . | . | 2 | 10 | 22 | 18 | 13 | 3 | 10 | . | ||||||
| Red Admiral | 14 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 1 | . | 2 | 5 | 1 | ||||||
| Painted Lady | 7 | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | 2 | . | 1 | 2 | . | . | ||||||
| Small Tortoiseshell | 65 | 1 | . | . | . | . | . | . | . | . | . | . | 2 | . | 1 | 3 | 5 | 3 | 14 | 23 | 1 | ||||||
| Peacock | 59 | 6 | 4 | 8 | 1 | 1 | . | . | . | . | . | . | . | 16 | 3 | 7 | 1 | . | . | 4 | . | ||||||
| Comma | 6 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 2 | ||||||
| Speckled Wood | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | ||||||
| Marbled White | 3 | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | . | . | . | . | . | ||||||
| Grayling | 1925 | . | . | . | . | . | . | . | . | . | 1 | 27 | 125 | 251 | 415 | 405 | 270 | 153 | 118 | 106 | 1 | ||||||
| Gatekeeper / Hedge Brown | 1085 | . | . | . | . | . | . | . | . | . | . | 22 | 124 | 235 | 248 | 273 | 82 | 81 | 16 | 3 | . | ||||||
| Meadow Brown | 552 | . | . | . | . | . | . | 1 | 4 | 5 | 33 | 63 | 116 | 111 | 92 | 77 | 27 | 11 | 8 | 3 | . | ||||||
| Small Heath | 462 | . | . | . | . | . | 4 | 10 | 23 | 20 | 104 | 97 | 54 | 55 | 20 | 14 | 2 | 6 | 14 | 17 | 5 | ||||||