Geometridae: Sterrhinae

08132 Small Fan-footed Wave Idaea biselata, (Hufnagel, 1767)

BF1702 (ABH70.013)


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:


Broadleaved woodland, conifer plantations, hedgerows and mature gardens.

Regional Information

There are no records in the system yet in Bulgaria.

Similar Species
Arda valley, Eastern Rhodopi Mtns., 13th June 2013.
Arda valley, Eastern Rhodopi Mtns., 13th June 2013.
 Photo © Nick Greatorex-Davies
Dwarf Cream Wave Idaea fuscovenosa
Single-dotted Wave Idaea dimidiata
Treble Brown Spot Idaea trigeminata

Larva Type:
Brown, grey, black
No. of Proleg Pairs: