Photo © Mike Wall

Grey Arches

Polia nebulosa

Checklist Number
73.261 [B&F: 2150]

Verification
Record will normally be accepted but photo evidence may be required - check with CMR if not sure of identity

Classification

Family:Noctuidae
Subfamily:Hadeninae
Genus:Polia
Species:nebulosa
Authority:(Hufnagel, 1766)

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)