Photo © Mike Wall
Grey Arches
Polia nebulosa
Checklist Number73.261 [B&F: 2150]
Verification
Record will normally be accepted but photo evidence may be required - check with CMR if not sure of identity
Common in broad-leaved woodland, areas with scattered trees and gardens throughout the British Isles. Widespread and still fairly common in Hampshire. Not recorded from the Isle of Wight since 1983. Wingspan 46-58 mm. The main confusion species is Silvery Arches P. trimaculosa, but P. nebulosa differs, for example, in having a distinct, longitudinal tornal dash. Larva feeds on various deciduous trees and shrubs, including Hazel, Downy and Silver Birch, Honeysuckle, Sallow and Bramble.
The abundance in each month is indicated as follows:
No records
Very occasional
Irregular
Uncommon
Off-peak, but not unusual
Off-peak, but not unusual
Main flight time| J | F | M | A | M | J | J | A | S | O | N | D | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Adult | | | | | | | | | | | | |
| Larval | | | | | | | | | | | | |
Records by week (adult)
Records by week (larval)
