Photo © Dave Green

Large Thorn

Ennomos autumnaria

Checklist Number
70.232 [B&F: 1911]

Verification
Record will require further evidence, at least a good photograph, unless CMR is aware recorder has confidence in identification

Classification

Family:Geometridae
Subfamily:Ennominae
Genus:Ennomos
Species:autumnaria
Authority:(Werneburg, 1859)

Nationally scarce (Nb) in broad-leaved woodland, scrub and gardens in parts of south-eastern England. In Hampshire largely confined to the extreme south-east corner of the county, on Hayling and Portsea Islands, with occasional wanderers elsewhere in the south of the county and on the Isle of Wight. Wingspan 49-64 mm. Speckled appearance and large size should preclude confusion with other 'thorns'. Larva feeds on various broad-leaved trees and shrubs, including Birch, Alder, Hazel, Hawthorn, Blackthorn and Poplar, over-wintering as an egg.

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)

No Larval records to show.