
| 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 | 23 | . | . | . | . | . | . | . | . | 2 | 7 | 4 | 4 | 4 | 1 | . | . | . | . | . | |||||||
| Small Skipper | 6 | . | . | . | . | . | . | . | 1 | . | 1 | 1 | 3 | 1 | . | . | . | . | . | . | |||||||
| Essex Skipper | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | |||||||
| Silver-spotted Skipper | 126 | . | . | . | . | . | . | . | . | . | . | . | 14 | 28 | 46 | 6 | . | . | . | . | |||||||
| Large Skipper | 9 | . | . | . | . | . | 1 | 2 | 2 | . | 4 | . | . | . | . | . | . | . | . | . | |||||||
| Dingy Skipper | NI | . | 1 | 11 | 3 | 7 | . | 3 | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Grizzled Skipper | NI | . | 1 | 15 | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Clouded Yellow | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | |||||||
| Brimstone | 153 | 4 | 11 | 12 | 8 | 10 | 5 | 1 | 1 | . | 5 | 7 | 19 | 16 | 15 | 1 | . | 1 | 2 | 1 | |||||||
| Large White | 54 | . | . | 1 | 1 | 1 | . | 1 | . | . | . | . | 2 | 16 | 9 | . | 5 | 8 | . | . | |||||||
| Small White | 239 | . | . | 1 | . | . | 1 | . | . | . | 6 | 7 | 33 | 34 | 40 | 11 | 10 | 46 | 5 | 1 | |||||||
| Green-veined White | 12 | . | 1 | 1 | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | 6 | . | . | |||||||
| Orange Tip | NI | . | 4 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Green Hairstreak | 6 | . | . | . | 1 | 3 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 4 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | 1 | 1 | |||||||
| Small Blue | 4 | . | . | . | . | 3 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Brown Argus | 186 | . | . | . | 16 | 16 | 6 | 1 | . | . | . | . | 6 | 13 | 23 | 30 | 13 | 3 | 4 | 1 | |||||||
| Common Blue | 644 | . | . | . | 60 | 72 | 75 | 22 | 27 | 9 | 1 | 2 | 13 | 32 | 81 | 65 | 25 | 9 | 4 | 1 | |||||||
| Chalk-hill Blue | 493 | . | . | . | . | . | . | . | . | . | 3 | 16 | 76 | 127 | 90 | 71 | 4 | . | 1 | . | |||||||
| Adonis Blue | 131 | . | . | . | 9 | 27 | 30 | 4 | 2 | . | . | . | . | . | 3 | 19 | 5 | 7 | 1 | . | |||||||
| Holly Blue | 7 | . | 1 | 1 | . | 1 | 1 | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | |||||||
| Red Admiral | 15 | . | . | 1 | . | . | . | . | . | 2 | 2 | 3 | 1 | . | . | . | 2 | 1 | . | . | |||||||
| Painted Lady | 6 | . | . | 1 | . | . | . | 2 | 1 | . | . | . | . | 2 | . | . | . | . | . | . | |||||||
| Peacock | NI | . | 2 | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||||
| Comma | 4 | . | . | . | . | . | . | . | . | . | 2 | . | 1 | . | . | . | . | . | 1 | . | |||||||
| Dark Green Fritillary | 22 | . | . | . | . | . | . | 1 | 1 | 5 | 3 | 2 | 5 | 3 | 1 | . | . | . | . | . | |||||||
| Silver-washed Fritillary | 2 | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | |||||||
| Speckled Wood | 14 | . | . | . | 1 | . | 1 | . | . | . | . | . | . | 1 | 1 | 3 | . | . | 3 | . | |||||||
| Marbled White | 97 | . | . | . | . | . | . | 2 | 10 | 30 | 24 | 20 | 5 | . | . | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 95 | . | . | . | . | . | . | . | . | . | 13 | 10 | 40 | 25 | 7 | . | . | . | . | . | |||||||
| Meadow Brown | 1051 | . | . | . | . | . | . | 19 | 39 | 76 | 74 | 47 | 81 | 109 | 98 | 103 | 70 | 60 | 52 | 24 | |||||||
| Small Heath | 430 | . | . | . | 19 | 19 | 29 | 61 | 63 | 41 | 24 | 12 | 10 | 2 | 2 | 9 | 35 | 45 | 21 | 1 | |||||||
| Ringlet | 31 | . | . | . | . | . | . | 1 | 4 | 11 | 10 | 1 | 1 | . | . | . | . | . | . | . | |||||||
| Six-spot Burnet | NI | . | . | . | . | . | . | . | . | 1 | 10 | 19 | 65 | 49 | 32 | 2 | . | . | . | . | |||||||
| Humming-bird Hawk-moth | NI | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Silver Y | NI | . | . | 1 | . | . | 2 | . | . | . | 3 | 3 | 10 | 2 | . | . | . | . | . | . | |||||||
| Scarlet Tiger | NI | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | |||||||
| The Cinnabar | NI | . | 1 | 3 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Burnet Companion | NI | . | . | . | . | 1 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||