65.005 Drepana falcataria (Pebble Hook-tip)
fw: 17-21mm; downy/silver birch (Betula pubescens/pendula)
ssp falcataria - bivoltine Apr-Jun, Jul-Sep, sometimes trivoltine Oct; common in England, Wales & S.Scotland
ssp scotica - univoltine May-Jul; common in N.Scotland
ssp falcataria - bivoltine Apr-Jun, Jul-Sep, sometimes trivoltine Oct; common in England, Wales & S.Scotland
ssp scotica - univoltine May-Jul; common in N.Scotland
Drepana falcataria (Pebble Hook-tip) §2 male
ID: Relatively large 'pebble-like' central spot on forewing; purplish-brown blotch on termen towards apex; rests with wings flat. In ssp falcataria the forewing is orange and the hindwing contrastingly paler orange. In ssp scotica both wings are straw-white. Ssp scotica is unlikely to be confused with any other species but ssp falcataria is similar to D.curvatula (Dusky Hook-tip) which is distinguished by its small central forewing spots and a strong postmedian line on the hindwing.
DIssection
Male genitalia
Female genitalia
§1 Anglesey; 03/08/2007; fw 16.3mm; male
§2 New Forest, Hampshire; 28/05/2010; male
§3 New Forest, Hampshire; 04/09/2013; male
§4 Strumpshaw Fen, Norfolk; 09/05/2014; male; fw 18.1mm
§5 Belfairs woods, Essex; 08/05/2015
§6 New Forest, Hampshire; 15/05/2018; female; fw 17.3mm
All images © Chris Lewis
§2 New Forest, Hampshire; 28/05/2010; male
§3 New Forest, Hampshire; 04/09/2013; male
§4 Strumpshaw Fen, Norfolk; 09/05/2014; male; fw 18.1mm
§5 Belfairs woods, Essex; 08/05/2015
§6 New Forest, Hampshire; 15/05/2018; female; fw 17.3mm
All images © Chris Lewis
Page published 20/09/2014 (§1-4) | §5 added 12/03/2016 | §6 added 25/02/2019
