
| 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 | 37 | . | . | . | . | . | . | . | . | . | 1 | 1 | 10 | 6 | 12 | 6 | 1 | . | . | . | . | . | |||||
| Large Skipper | 11 | . | . | . | . | . | . | . | 3 | 5 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | |||||
| Dingy Skipper | 42 | . | . | 3 | 15 | 13 | . | 2 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Grizzled Skipper | 36 | . | . | 3 | 7 | 13 | . | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Clouded Yellow | 113 | . | . | . | . | . | . | . | . | 3 | 6 | 4 | 4 | 1 | 1 | 1 | 1 | 5 | 12 | 4 | 22 | 11 | |||||
| Brimstone | 48 | 3 | . | 13 | 7 | . | 4 | . | . | . | . | . | . | . | 2 | 1 | 1 | 1 | 2 | 1 | 3 | . | |||||
| Large White | 31 | . | . | . | . | 1 | . | 1 | . | . | . | . | 2 | . | 1 | 4 | 5 | 2 | 1 | 1 | 3 | . | |||||
| Small White | 20 | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 5 | 6 | 1 | 2 | 1 | 1 | . | |||||
| Green-veined White | 34 | . | . | . | . | 7 | 1 | 1 | . | . | . | . | 5 | . | 1 | 1 | 1 | . | . | . | 1 | . | |||||
| Orange Tip | 8 | . | . | 3 | 1 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Green Hairstreak | 10 | . | . | 1 | 1 | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | 15 | . | . | . | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | 2 | 1 | 3 | |||||
| Brown Argus | 147 | . | . | . | . | 4 | 5 | 10 | 1 | 4 | . | . | . | . | 3 | 9 | 21 | 26 | 19 | 22 | 5 | 5 | |||||
| Common Blue | 281 | . | . | . | . | 12 | 13 | 26 | 6 | 2 | . | . | . | . | 8 | 18 | 25 | 32 | 43 | 38 | 22 | 4 | |||||
| Chalk-hill Blue | 44 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 3 | 9 | 15 | 10 | 6 | 4 | . | . | |||||
| Adonis Blue | 70 | . | . | . | 1 | . | 3 | 4 | 2 | 1 | . | . | . | . | . | . | . | . | 8 | 6 | 5 | 4 | |||||
| Holly Blue | 1 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Red Admiral | 43 | . | . | . | . | . | . | . | . | 2 | 2 | 3 | 1 | . | 1 | 1 | 1 | 2 | 1 | 5 | 9 | 4 | |||||
| Painted Lady | 44 | . | . | . | . | . | . | 2 | 3 | 5 | 3 | . | 5 | . | . | 2 | 9 | 6 | 4 | 1 | 6 | 1 | |||||
| Small Tortoiseshell | 207 | 7 | 5 | 6 | 5 | 4 | . | . | 1 | 2 | 8 | 22 | 18 | 10 | 7 | 3 | 4 | 24 | 7 | 9 | 13 | 1 | |||||
| Peacock | 55 | 8 | 5 | 3 | 5 | 5 | . | . | . | . | . | . | . | . | 6 | 10 | 4 | . | . | . | . | . | |||||
| Comma | 13 | 1 | . | . | . | . | . | . | . | . | 1 | 2 | 2 | . | 2 | 2 | . | . | . | . | 2 | . | |||||
| Silver-washed Fritillary | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | |||||
| Marsh Fritillary | 12 | . | . | . | . | 1 | . | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Speckled Wood | 16 | . | . | 5 | 1 | 1 | 1 | 1 | . | . | . | . | 2 | . | . | . | . | 1 | . | . | 2 | . | |||||
| Marbled White | 356 | . | . | . | . | . | . | . | 4 | 23 | 57 | 62 | 41 | 43 | 22 | 3 | . | . | . | . | . | . | |||||
| Gatekeeper / Hedge Brown | 258 | . | . | . | . | . | . | . | . | . | 3 | 14 | 52 | 40 | 47 | 27 | 18 | 4 | . | . | . | . | |||||
| Meadow Brown | 3513 | . | . | . | . | . | . | 2 | 17 | 48 | 77 | 152 | 140 | 273 | 465 | 401 | 563 | 446 | 288 | 231 | 63 | 44 | |||||
| Small Heath | 54 | . | . | . | . | 6 | 6 | 1 | 6 | 6 | 10 | 1 | 1 | 1 | 1 | . | 4 | 4 | 8 | 9 | 2 | 2 | |||||
| Ringlet | 40 | . | . | . | . | . | . | . | . | . | 3 | 2 | 6 | . | . | . | . | . | . | . | . | . | |||||
| Six-spot Burnet | NI | . | . | . | . | . | . | . | . | . | . | 1 | 7 | 5 | 39 | 17 | 2 | . | . | . | . | . | |||||
| Five-spot Burnet | NI | . | . | . | . | . | . | . | . | 1 | 1 | 2 | . | 1 | . | . | . | . | . | . | . | . | |||||
| Silver Y | NI | . | . | . | . | . | . | 9 | 24 | 9 | . | . | . | . | . | 7 | 13 | 10 | 19 | 30 | . | 4 | |||||
| Scarlet Tiger | NI | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | |||||
| Mother Shipton | NI | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Burnet Companion | NI | . | . | . | 1 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||