Geometridae: Larentiinae

1720 (ABH70.047) Gem Nycterosea obstipata (=Orthonama), (Fabricius, 1794)


Female, Carmarthenshire
Female, Carmarthenshire
 Photo © Martin Lovell
Female, Carmarthenshire
 Photo © Martin Lovell
Hemingford Grey
Hemingford Grey
 Photo © Nick Greatorex-Davies

General Information

The forewing of male of this species is orange-brown with a narrow, irregular, sometimes broken, dark central cross-band and a rather ill-defined dark streak at the wing tip. That of female has a similar pattern, but is deep brown with a small, black, white-ringed central dot and sometimes very fine, wavy whitish cross-lines. There is only minor variation.

Overwinters as Doesn't overwinter in the UK.
Both sexes come to light.

Forewing length: 12-14mm.
Flying: Arriving April-November
UK Presence: Immigrant
National status: Local


Warm, sunny places.

Regional Information

Recorded in 17 (6.3%) of the 270 2km squares of Huntingdonshire.

Last recorded in November 2021

Recorded date range (Adult): 15 May to 26 November

Larva Type:
Green, brown
No. of Proleg Pairs: