Dusky Thorn (Ennomos fuscantaria, (Haworth, 1809))

Geometridae: Ennominae

1914 (ABH70.235) Dusky Thorn Ennomos fuscantaria, (Haworth, 1809)

Photo © Barry Dickerson

Dusky Thorn

Photo © Barry Dickerson

pre-2000

2000-2009

2010-2019

2020-onwards

Monks Wood. 6th Aug. 2008. MV trap. Male

Photo © Nick Greatorex-Davies

near Llanbedr, Harlech, N Wales. 4th Sept. 2013. MV trap. Male.

Photo © Nick Greatorex-Davies

near Llanbedr, Harlech, N Wales. 30th Aug. 2013. MV trap. Male

Photo © Nick Greatorex-Davies

near Llanfyllin, N. Powys. 18th Sept. 2015. MV trap. Female.

Photo © Nick Greatorex-Davies

near Llanfyllin, N. Powys. 18th Sept. 2015. MV trap. Female.

Photo © Nick Greatorex-Davies

near Llanfyllin, N. Powys. 18th Sept. 2015. MV trap. Female.

Photo © Nick Greatorex-Davies

ex fem NW Wales (nr Fairbourne), Light trap 30th Aug., 2019.

Photo © Nick Greatorex-Davies

General Information

Pupates in spun leaves.

Overwinters as Overwinters as an egg.
Both sexes readily come to light, sometimes in numbers.

Forewing length: 17-21mm.
Foodplant(s): Ash (Fraxinus excelsior)
Flying: One generation, July-October
UK Presence: Resident
National status: Common

Habitat

Woodland and hedgerows.

Regional Information

Recorded in 55 (20.4%) of the 270 2km squares of Huntingdonshire.

Last recorded in September 2019

Recorded date range (Adult): 07 July to 27 October

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