
| 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 | 137 | . | . | . | . | . | . | . | 5 | 38 | 26 | 31 | 8 | 9 | 1 | . | . | . | . | ||||||||
| Large Skipper | 38 | . | . | . | . | . | 1 | 5 | 5 | 10 | 7 | 6 | 1 | . | . | . | . | . | . | ||||||||
| Dingy Skipper | 7 | . | . | . | 2 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Brimstone | 40 | 7 | 6 | 5 | . | 2 | . | . | . | . | 1 | . | . | . | 1 | 1 | 1 | . | 5 | ||||||||
| Large White | 91 | . | . | . | . | 3 | 3 | 1 | . | . | . | 5 | 8 | 13 | 13 | 10 | 10 | 3 | 2 | ||||||||
| Small White | 55 | . | . | . | 1 | 2 | 2 | . | 1 | . | 2 | 2 | 4 | 9 | 11 | 5 | 4 | 1 | . | ||||||||
| Green-veined White | 19 | . | . | . | 2 | 1 | . | . | . | . | 2 | . | . | 3 | 3 | 1 | 1 | 1 | . | ||||||||
| Orange Tip | 1 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Green Hairstreak | 10 | . | . | . | 2 | 3 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Small Copper | 68 | . | . | . | 5 | 6 | 1 | . | 1 | . | . | 5 | 4 | 7 | 4 | 3 | 2 | 7 | 4 | ||||||||
| Silver-studded Blue | 881 | . | . | . | 1 | . | 39 | 119 | 277 | 169 | 75 | 55 | 32 | 25 | 9 | 5 | 5 | 6 | 3 | ||||||||
| Common Blue | 81 | . | . | . | . | 2 | 7 | 6 | 4 | 1 | 3 | . | 2 | 3 | 4 | 6 | 6 | 10 | 1 | ||||||||
| Holly Blue | 3 | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | ||||||||
| Red Admiral | 3 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 1 | 1 | . | ||||||||
| Painted Lady | 22 | . | . | . | 1 | 2 | 2 | 1 | 1 | . | 1 | . | 1 | 1 | 1 | 2 | 2 | . | 2 | ||||||||
| Small Tortoiseshell | 51 | 9 | 4 | 3 | . | . | . | 3 | . | . | . | 4 | 5 | 3 | 1 | 1 | 4 | 3 | 1 | ||||||||
| Peacock | 40 | 9 | 13 | 1 | . | . | . | . | . | . | . | . | 3 | 1 | . | . | 3 | . | . | ||||||||
| Comma | 4 | 1 | 1 | . | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||||
| Speckled Wood | 10 | . | . | . | . | . | 1 | 1 | . | . | . | . | 1 | 1 | 1 | . | 1 | 1 | 1 | ||||||||
| Grayling | 1288 | . | . | . | . | . | . | . | . | 4 | 25 | 90 | 208 | 210 | 255 | 125 | 59 | 44 | 17 | ||||||||
| Gatekeeper / Hedge Brown | 335 | . | . | . | . | . | . | . | . | . | . | 2 | 58 | 87 | 77 | 35 | 16 | 4 | 1 | ||||||||
| Meadow Brown | 994 | . | . | . | . | . | . | 11 | 42 | 95 | 108 | 144 | 94 | 104 | 108 | 68 | 31 | 19 | 2 | ||||||||
| Small Heath | 459 | . | . | . | . | 1 | 32 | 61 | 95 | 89 | 44 | 50 | 13 | 9 | 3 | 2 | 4 | 10 | 6 | ||||||||