
| 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 | 23 | . | . | . | . | . | . | . | . | . | . | . | 6 | 4 | 5 | . | . | . | . | . | |||||||
| Large Skipper | 40 | . | . | . | . | . | . | . | 4 | 5 | 5 | 3 | 4 | 4 | 7 | . | . | . | . | . | |||||||
| Dingy Skipper | 4 | . | . | . | 1 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Brimstone | NI | 4 | 20 | 30 | 31 | 18 | 9 | 26 | 1 | 8 | 5 | . | . | . | 1 | . | 18 | 5 | 2 | 1 | |||||||
| Large White | 20 | . | . | . | . | 1 | . | . | . | . | . | . | . | 1 | 3 | 4 | 1 | 1 | 1 | . | |||||||
| Small White | NI | . | . | 1 | . | . | 1 | 1 | . | . | . | . | . | . | . | . | 1 | 1 | . | . | |||||||
| Green-veined White | 40 | . | . | . | 8 | . | . | 6 | . | 3 | . | . | . | 1 | 5 | 2 | 4 | 1 | . | . | |||||||
| Green Hairstreak | 45 | . | . | . | . | . | . | 7 | 2 | 14 | 10 | 8 | . | . | . | . | . | . | . | . | |||||||
| Purple Hairstreak | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | |||||||
| Small Copper | NI | . | . | . | . | 2 | . | 1 | . | 4 | . | 1 | . | . | . | 2 | 1 | 4 | 1 | 2 | |||||||
| Common Blue | NI | . | . | . | . | . | . | 3 | 3 | 8 | 4 | 3 | 2 | . | 4 | 12 | 17 | 10 | . | . | |||||||
| Holly Blue | 22 | . | . | 1 | 2 | . | 1 | 1 | . | . | . | . | . | 3 | 2 | 3 | 1 | 1 | . | . | |||||||
| Red Admiral | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | . | 1 | |||||||
| Small Tortoiseshell | NI | . | . | 1 | . | . | . | . | . | . | . | . | . | 2 | . | . | 3 | 17 | 4 | 1 | |||||||
| Peacock | 88 | 9 | 13 | 5 | 4 | . | . | 1 | . | . | . | . | 1 | 6 | 8 | 9 | 10 | 5 | . | . | |||||||
| Comma | NI | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | |||||||
| Dark Green Fritillary | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||
| Silver-washed Fritillary | 25 | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | 9 | . | 5 | . | . | . | |||||||
| Marsh Fritillary | 35 | . | . | . | . | . | . | . | 3 | 20 | 12 | . | . | . | . | . | . | . | . | . | |||||||
| Heath Fritillary | 67 | . | . | . | . | . | . | 3 | 3 | 35 | 19 | 2 | 2 | . | . | . | . | . | . | . | |||||||
| Speckled Wood | 151 | . | 3 | 3 | 5 | 4 | 6 | 3 | 2 | 2 | 7 | 6 | 4 | 7 | 6 | 4 | 26 | 2 | 20 | 2 | |||||||
| Wall Brown | NI | . | . | . | 2 | . | 1 | . | . | . | . | . | . | . | . | 2 | . | 1 | . | . | |||||||
| Marbled White | 28 | . | . | . | . | . | . | . | . | . | . | . | 2 | 5 | 10 | . | 1 | . | . | . | |||||||
| Grayling | 2 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 294 | . | . | . | . | . | . | . | . | . | . | . | 2 | 43 | 57 | 50 | 23 | 28 | . | . | |||||||
| Meadow Brown | 264 | . | . | . | . | . | . | . | . | 1 | 3 | 34 | 54 | 60 | 24 | 7 | 6 | 1 | . | . | |||||||
| Small Heath | NI | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 2 | . | . | |||||||
| Ringlet | 226 | . | . | . | . | . | . | . | . | . | . | 7 | 39 | 68 | 35 | 2 | 1 | . | . | . | |||||||
| Unknown Fritillary | NI | . | . | 1 | 28 | 7 | 10 | 43 | 9 | 40 | 2 | . | . | . | . | . | . | . | . | . | |||||||
| Unknown | NI | . | . | . | . | . | . | . | . | . | 10 | . | . | . | . | . | . | . | . | . | |||||||