Noctuidae: Xyleninae

2323 (ABH73.164) Reddish Light Arches Apamea sublustris, (Esper, 1788)


Old Weston
Old Weston
 Photo © Kevin Royles
Old Weston
 Photo © Kevin Royles

General Information

This species is generally darker than the Light Arches (A. lithoxylaea).


The early stages have not been recorded in the wild, but it is presumed that their life-cycle is the same as similar species.

Both sexes readily come to light, sometimes in numbers.

Forewing length: 18-21mm.
Foodplant(s): grasses
Flying: One generation, June-July
UK Presence: Resident
National status: Local


Grassland on chalky and limestone soils.

Regional Information

Recorded in 12 (4.4%) of the 270 2km squares of Huntingdonshire.

Last recorded in June 2019

Recorded date range (Adult): 11 June to 19 July

Similar Species
RIla Mountains, Bulgaria. 11th July 2016.
RIla Mountains, Bulgaria. 11th July 2016.
 Photo © Nick Greatorex-Davies
Pale Shining Brown Polia bombycina
Great Staughton
Great Staughton
 Photo © Peter Bissell
Light Arches Apamea lithoxylaea

Larva Type:
Grey, brown, black
No. of Proleg Pairs: