Geometridae: Sterrhinae

1702 (ABH70.013) Small Fan-footed Wave Idaea biselata, (Hufnagel, 1767)

KR08132

Earith
Earith
 Photo © David Griffiths
Earith
 Photo © David Griffiths
 pre-1981
 1981-1999
 2000-2009
 2010-onwards
Earith
Earith
 Photo © David Griffiths
Monks Wood
Monks Wood
 Photo © Nick Greatorex-Davies
Monks Wood
Monks Wood
 Photo © Nick Greatorex-Davies
Earith
Earith
 Photo © David Griffiths
Monks Wood, July 2007
Monks Wood, July 2007
 Photo © Nick Greatorex-Davies


General Information

Forewing and hindwings of this species both have a prominent central black dot. The leading edge of the forewing is curved near the tip and the second cross-line beyond the black dot usually curves around it. The species is very variable in the intensity of the markings and there is also a dark form (f. fimbriolata).

 

Pupates in plant debris.

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

Forewing length: 10-11mm.
Foodplant(s): herbaceous plants
Flying: One generation, late June-late August
UK Presence: Resident
National status: Common

Habitat

Broadleaved woodland, conifer plantations, hedgerows and mature gardens.

Regional Information

Recorded in 118 (43.7%) of the 270 2km squares of Huntingdonshire.

Last recorded in August 2019

Recorded date range (Adult): 30 May to 14 October

Similar Species
Great Staughton
Great Staughton
 Photo © Peter Bissell
Dwarf Cream Wave Idaea fuscovenosa
Great Staughton
Great Staughton
 Photo © Peter Bissell
Single-dotted Wave Idaea dimidiata
Earith
Earith
 Photo © David Griffiths
Treble Brown Spot Idaea trigeminata


Larva/Leafmine:
Larva Type:
Wrinkled
Colours:
Brown, grey, black
No. of Proleg Pairs:
2