70.239 Selenia tetralunaria (Purple Thorn)
fw: 17-23mm; bivoltine in south Apr-May,
Jul-Aug, occasionally trivoltine Sep-Oct, univoltine in north May-Jun; various
broadleaved trees; common in most of England and Wales, more local north of the
Humber.
Selenia tetralunaria (Purple Thorn) §1 male
ID: Similar to S.lunularia (Lunar Thorn). Distinguished by presence of a dark central spot on hindwing upperside near termen in S.tetralunaria and its absence in S.lunularia; central silver crescent in median fascia of forewing is obviously larger in S.tetralunaria; distal edge of median fascia (postmedian line) is nearly straight in its costal half in S.lunularia, distinctly bowed in S.tetralunaria; hindwing termen is deeply scalloped in S.lunularia, usually less so in S.tetralunaria.
§1 Strumpshaw Fen, Norfolk; 05/05/2008; male
§2 Strumpshaw Fen, Norfolk; 19/04/2011; male
§3 Forest of Dean, Gloucestershire; 05/05/2013; male
§4 Bampton Grange, Cumbria; 11/08/2017; male; to light
§5 Cliburn Moss, Cumbria; 30/07/2019; male; fw 16.1mm
§6 Cliburn Moss, Cumbria; 30/07/2019; male
§7 New Forest, Hampshire; 14/07/2019; male; fw 15.4mm
All images © Chris Lewis
§2 Strumpshaw Fen, Norfolk; 19/04/2011; male
§3 Forest of Dean, Gloucestershire; 05/05/2013; male
§4 Bampton Grange, Cumbria; 11/08/2017; male; to light
§5 Cliburn Moss, Cumbria; 30/07/2019; male; fw 16.1mm
§6 Cliburn Moss, Cumbria; 30/07/2019; male
§7 New Forest, Hampshire; 14/07/2019; male; fw 15.4mm
All images © Chris Lewis
Page published 04/03/2014 (§1-3) | §4 added 08/01/2018 | §5-7 added 28/02/2020
