Drepanidae: Thyatirinae

1660 (ABH65.015) Frosted Green Polyploca ridens, (Fabricius, 1787)

KR07494

 Photo © Barry Dickerson
Frosted Green
 Photo © Barry Dickerson
 pre-2000
 2000-2009
 2010-2019
 2020-onwards
 Photo © Barry Dickerson
Monks Wood NNR, 28th April 2008.
Monks Wood NNR, 28th April 2008.
 Photo © Nick Greatorex-Davies
Whitelye Moor, Monmouthshire, female. 26th May 2013
Whitelye Moor, Monmouthshire, female. 26th May 2013
 Photo © Nick Greatorex-Davies
Storrington, W. Sussex. 21st April 2018. 20 w wemlite.trap.
Storrington, W. Sussex. 21st April 2018. 20 w wemlite.trap.
 Photo © Nick Greatorex-Davies
Storrington, W. Sussex. 21st April 2018. 20 w wemlite.trap.
Storrington, W. Sussex. 21st April 2018. 20 w wemlite.trap.
 Photo © Nick Greatorex-Davies
Storringoton, W. Sussex, 19th April 2018. Light trap.
Storringoton, W. Sussex, 19th April 2018. Light trap.
 Photo © Nick Greatorex-Davies
Whitelye, Monmouthshire, 17-04-2025. Light trap. Male.
Whitelye, Monmouthshire, 17-04-2025. Light trap. Male.
 Photo © Nick Greatorex-Davies
N Greece, 16-05-2015. Late instar.
N Greece, 16-05-2015. Late instar.
 Photo © Nick Greatorex-Davies
N Greece, 16-05-2015. Late instar.
N Greece, 16-05-2015. Late instar.
 Photo © Nick Greatorex-Davies


General Information

Pupates under moss at the base of a tree.

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

Forewing length: 15-17mm.
Foodplant(s): Pedunculate Oak (Quercus robur), Sessile Oak (Quercus petraea), Turkey Oak (Quercus laevis)
Flying: One generation, April-May
UK Presence: Resident
National status: Local

Habitat

Mature broadleaved woodland.

Regional Information

Recorded in 16 (5.9%) of the 270 2km squares of Huntingdonshire.

Last recorded in May 2025

Recorded date range (Adult): 05 April to 17 May

Recorded date range (Larva/Leafmine): 23 May to 23 May


Local
Larva/Leafmine:
Larva Type:
Wrinkled
Colours:
Yellow, green, white, orange
No. of Proleg Pairs:
5