Erebidae: Lymantriidae

2033 (ABH72.010) Black Arches Lymantria monacha, (Linnaeus, 1758)

KR10375

Freudenstadt, Germany, August 2012
Freudenstadt, Germany, August 2012
 Photo © Peter Bissell
Freudenstadt, Germany, August 2012
 Photo © Peter Bissell
 pre-2000
 2000-2009
 2010-2019
 2020-onwards
Freudenstadt, Germany, August 2012
Freudenstadt, Germany, August 2012
 Photo © Peter Bissell
Freudenstadt, Germany, August 2012
Freudenstadt, Germany, August 2012
 Photo © Peter Bissell
 Photo © Barry Dickerson
Holme Fen, August 2011
Holme Fen, August 2011
 Photo © Peter Bissell
Monks Wood
Monks Wood
 Photo © Nick Greatorex-Davies
Whitelye, Monmouthshire, Aug, 2003 (female)
Whitelye, Monmouthshire, Aug, 2003 (female)
 Photo © Nick Greatorex-Davies
Whitelye, Monmouthshire, Aug. 2005
Whitelye, Monmouthshire, Aug. 2005
 Photo © Nick Greatorex-Davies
near Llanbedr, Harlech, N Wales. 30th Aug. 2013
near Llanbedr, Harlech, N Wales. 30th Aug. 2013
 Photo © Nick Greatorex-Davies
Monks Wood NNR, 25th June 2008.
Monks Wood NNR, 25th June 2008.
 Photo © Nick Greatorex-Davies
Monks Wood
Monks Wood
 Photo © Nick Greatorex-Davies


General Information

Pupates in a crevice in bark or in foliage.

Overwinters as Overwinters as an egg.
Male readily comes to light, sometimes in numbers. Female not.
Often found at rest during day

Forewing length: M 18-20mm. F 20-28mm.
Foodplant(s): Pedunculate Oak (Quercus robur), Sessile Oak (Quercus petraea), hawthorns (Crataegus spp.), birches (Betula spp.), Hornbeam (Carpinus betulus), Aspen (Populus tremula), pines (Pinus spp.), spruces (Picea spp.)
Flying: One generation, late July-August
UK Presence: Resident
National status: Local

Habitat

Mature woodland, heathland and scrub.

Regional Information

Recorded in 81 (30%) of the 270 2km squares of Huntingdonshire.

Last recorded in September 2025

Recorded date range (Adult): 08 June to 30 September

Similar Species
Hemingford Grey, 19th Aug. 2021. Light trap.
Hemingford Grey, 19th Aug. 2021. Light trap.
 Photo © Nick Greatorex-Davies
Gypsy Moth Lymantria dispar

Local
Larva/Leafmine:
Larva Type:
Hairy
Colours:
Grey, white, black, yellow
No. of Proleg Pairs:
5