Geometridae: Ennominae

1917 (ABH70.237) Early Thorn Selenia dentaria, (Fabricius, 1775)

KR07641

Second generation, Great Staughton
Second generation, Great Staughton
 Photo © Peter Bissell
Second generation, Great Staughton
 Photo © Peter Bissell
 pre-1981
 1981-1999
 2000-2009
 2010-onwards
First generation, Great Staughton
First generation, Great Staughton
 Photo © Peter Bissell
First generation, Great Staughton
First generation, Great Staughton
 Photo © Peter Bissell
Female. Monks Wood, 13th April 2005.
Female. Monks Wood, 13th April 2005.
 Photo © Nick Greatorex-Davies
Earith
Earith
 Photo © David Griffiths
Whitelye, Monmouthshire, April 2008
Whitelye, Monmouthshire, April 2008
 Photo © Nick Greatorex-Davies
2nd generation. Hemingford Grey, 26th July 2013
2nd generation. Hemingford Grey, 26th July 2013
 Photo © Nick Greatorex-Davies
Monks Wood
Monks Wood
 Photo © Nick Greatorex-Davies


General Information

This species has a characteristic resting position with its wings held together above the body and this distinguishes it from all of the other British thorn species.

 

Pupates between spun leaves or in leaf litter.

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

Forewing length: 14-23mm.
Foodplant(s): Blackthorn (Prunus spinosa), hawthorns (Crataegus spp.), Hazel (Corylus avellana), birches (Betula spp.), Alder (Alnus glutinosa), sallows (Salix spp.), honeysuckles (Lonicera spp.), broadleaved plants
Flying: Two generations, mid February-May and July-September
UK Presence: Resident
National status: Common

Habitat

Woodland, scrub, hedgerows and gardens.

Regional Information

Recorded in 128 (47.4%) of the 270 2km squares of Huntingdonshire.

Last recorded in August 2018

Recorded date range (Adult): 27 February to 18 September

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



Larva/Leafmine:
Larva Type:
With lumps, bumps or horn(s)
Colours:
Brown, grey
No. of Proleg Pairs:
2