70.013 Idaea biselata (Small Fan-footed Wave)
fw: 10-11mm; Jun-Aug, occasionally a 2nd generation in Oct; unknown; common in woodland throughout GB
Idaea biselata (Small Fan-footed Wave) §3
ID: Characterised by strong central black spot on each wing; forewing spot proximal to 2nd line, which curves around the spot (spot usually distal to 2nd line in I.fuscovenosa (Dwarf Cream Wave); broad dark band distal to 3rd line which can be very strong (form fimbriolata) (this band absent in I.fuscovenosa); terminal end of each wing vein marked with a small dark dot (fine dashes in I.fuscovenosa).
§1 Newborough Forest, Anglesey; 03/08/2007
§2 Horsey, Norfolk; 14/07/2008; form fimbriolata
§3 Galmpton, Devon; 29/07/2010
§4 New Forest, Hampshire; 02/09/2013; fw 9.5mm
§5 New Forest, Hampshire; 02/09/2013; female; fw 9.2mm
§6 Belfairs Woods, Essex; 18/07/2014; male; fw 10.3mm
§7 Romansleigh, Devon; 25/06/2016; male; fw 10.8mm
§8 Pound Wood, Essex; 05/08/2020; female; fw 10.1mm
All images © Chris Lewis
§2 Horsey, Norfolk; 14/07/2008; form fimbriolata
§3 Galmpton, Devon; 29/07/2010
§4 New Forest, Hampshire; 02/09/2013; fw 9.5mm
§5 New Forest, Hampshire; 02/09/2013; female; fw 9.2mm
§6 Belfairs Woods, Essex; 18/07/2014; male; fw 10.3mm
§7 Romansleigh, Devon; 25/06/2016; male; fw 10.8mm
§8 Pound Wood, Essex; 05/08/2020; female; fw 10.1mm
All images © Chris Lewis
Page published 26/03/2013 (§1-3) | §4&5 added 20/11/2013 | §6 added 03/02/2015 | §7 added 09/04/2017 | §8 added 04/02/2021
