Noctuidae: Xyleninae

2318 (ABH73.216) Dun-bar Cosmia trapezina, (Linnaeus, 1758)

KR09550

ex Larva, Agden Wood, April 2011
ex Larva, Agden Wood, April 2011
 Photo © Peter Bissell
ex Larva, Agden Wood, April 2011
 Photo © Peter Bissell
 pre-2000
 2000-2009
 2010-2019
 2020-onwards
ex. Larva, Staughton Moor
ex. Larva, Staughton Moor
 Photo © Peter Bissell
Earith
Earith
 Photo © David Griffiths
Earith
Earith
 Photo © David Griffiths
Earith
Earith
 Photo © David Griffiths
ex Larva, Agden Wood, April 2011
ex Larva, Agden Wood, April 2011
 Photo © Peter Bissell
ex. Larva, Staughton Moor
ex. Larva, Staughton Moor
 Photo © Peter Bissell
ex Larva, Agden Wood, April 2011
ex Larva, Agden Wood, April 2011
 Photo © Peter Bissell
ex. Larva, Staughton Moor
ex. Larva, Staughton Moor
 Photo © Peter Bissell
Monks Wood
Monks Wood
 Photo © Nick Greatorex-Davies
Earith
Earith
 Photo © David Griffiths
Earith
Earith
 Photo © David Griffiths
Monks Wood
Monks Wood
 Photo © Nick Greatorex-Davies
Early instar on Wych Elm, Staughton Moor
Early instar on Wych Elm, Staughton Moor
 Photo © Peter Bissell
Early instar on Wych Elm, Staughton Moor
Early instar on Wych Elm, Staughton Moor
 Photo © Peter Bissell
Eating hawthorn buds, Agden Wood, April 2011
Eating hawthorn buds, Agden Wood, April 2011
 Photo © Peter Bissell
ex. Larva, Staughton Moor
ex. Larva, Staughton Moor
 Photo © Peter Bissell


General Information

This is a quite variable species, with the ground colour ranging from ochreous-yellow to dark brown.

 

Pupates in loose soil.

Overwinters as Overwinters as an egg.
Both sexes come to light.

Forewing length: 13-16mm.
Foodplant(s): oaks (Quercus spp.), elms (Ulmus spp.), birches (Betula spp.), Blackthorn (Prunus spinosa), hawthorns (Crataegus spp.), Hazel (Corylus avellana), willows (Salix spp.), Aspen (Populus tremula), Field Maple (Acer campestre), broadleaved trees, broadleaved shrubs
Flying: One generation, mid July-mid September
UK Presence: Resident
National status: Common

Habitat

Woodland, heathland, scrub, fens, grassland with scrub.

Regional Information

Recorded in 135 (50%) of the 270 2km squares of Huntingdonshire.

Last recorded in August 2019

Recorded date range (Adult): 18 April to 17 September

Recorded date range (Larva/Leafmine): 05 May to 11 June

Similar Species
Angle-striped Sallow Enargia paleacea


Larva/Leafmine:
Larva Type:
Smooth
Colours:
Green, white, yellow, black
No. of Proleg Pairs:
5