Geometridae: Geometrinae

1666 (ABH70.299) Large Emerald Geometra papilionaria, (Linnaeus, 1758)


Monks Wood
Monks Wood
 Photo © Nick Greatorex-Davies
Monks Wood
 Photo © Nick Greatorex-Davies
Holme Fen, August 2011
Holme Fen, August 2011
 Photo © Peter Bissell
Monks Wood
Monks Wood
 Photo © Nick Greatorex-Davies

General Information

This is the largest of the UK emeralds.


Pupates in leaf litter.

Overwinters as Overwinters as a larva.
Both sexes readily come to light, sometimes in numbers.

Forewing length: 24-29mm.
Foodplant(s): Downy Birch (Betula pubescens), Silver Birch (Betula pendula), Hazel (Corylus avellana), Alder (Alnus glutinosa), Beech (Fagus sylvatica)
Flying: One generation, June-August
UK Presence: Resident
National status: Common


Woodland, scrubby heathland, grassland, hedgerows and gardens.

Regional Information

Recorded in 43 (15.9%) of the 270 2km squares of Huntingdonshire.

Last recorded in July 2019

Recorded date range (Adult): 04 June to 06 September

Recorded date range (Larva/Leafmine): 20 May to 29 August

Larva Type:
Green, yellow, white, red, brown
No. of Proleg Pairs: