
| 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 | NI | . | . | . | . | . | . | . | . | . | . | 6 | 14 | 14 | 14 | 1 | . | . | . | . | . | ||||||
| Large Skipper | 95 | . | . | . | . | . | . | . | . | 10 | 14 | 13 | 32 | 11 | 2 | . | . | . | . | . | . | ||||||
| Grizzled Skipper | NI | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | 2 | . | 10 | 4 | 5 | 1 | 2 | 1 | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | ||||||
| Large White | NI | . | . | . | . | . | 1 | . | . | . | . | . | . | 8 | 1 | . | . | . | . | . | . | ||||||
| Small White | 15 | . | 1 | . | . | 1 | 1 | 1 | . | . | 1 | . | 5 | 6 | 7 | . | 2 | . | 2 | . | . | ||||||
| Silver-studded Blue | NI | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Common Blue | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | ||||||
| Holly Blue | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | ||||||
| Red Admiral | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | ||||||
| Peacock | NI | . | 3 | 2 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Comma | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Pearl-bordered Fritillary | NI | . | . | . | . | . | 5 | 4 | 6 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Silver-washed Fritillary | NI | . | . | . | . | . | . | . | . | . | . | . | 12 | 8 | 5 | . | . | . | . | . | . | ||||||
| Speckled Wood | 47 | . | 1 | 1 | 2 | 2 | 1 | 7 | . | . | . | . | 1 | 2 | 1 | 2 | 11 | 7 | 5 | 9 | 2 | ||||||
| Gatekeeper / Hedge Brown | NI | . | . | . | . | . | . | . | . | . | . | 4 | 18 | 140 | 168 | 13 | 17 | . | . | . | . | ||||||
| Meadow Brown | 135 | . | . | . | . | . | . | . | . | 3 | 19 | 36 | 107 | 65 | 70 | 12 | 10 | 2 | . | . | . | ||||||
| Ringlet | NI | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | . | . | . | . | . | . | ||||||