73.336 Cerastis rubricosa (Red Chestnut)
fw: 14-17mm (Waring & Townsend), ws 32-38mm (MBGBI9); Feb-Apr (-May); various herbaceous and woody plants; common throughout GB.
ID: Forewing costa straight, termen fairly straight but rounded at tornus; ground colour ranges from pale reddish-brown to purplish brown with a variable mix of grey (darker forms predominating further north); oval, kidney and cross-lines usually faint, but sometimes pale and distinct; antenna shortly bipectinate in male, simple in female. C.leucographa (White-marked) has a similar shape and colour range but has distinct white or white-outlined oval and kidney marks, a paler hindwing and the male has strongly bipectinate antennae.
§1 Buttermere, Cumbria; 01/05/2009; fw 15.8mm
§2 Foulness, Essex; 03/04/2010; male; fw 17.0mm
§3 Foulness, Essex; 17/04/2010
§4 Strumpshaw Fen, Norfolk; 18/04/2011; male
§5 Exmoor, Devon; 26/04/2012
§6 Wye Valley, Gloucestershire; 03/05/2013; female; fw 15.0mm
§7 Dartmoor, Devon; 04/04/2014
§8 Foulness, Essex; 28/03/2015; male; fw 17.0mm
§9 Foulness, Essex; 28/03/2015; male; fw 16.5mm
All images © Chris Lewis
§10 Foulden Common, Norfolk; 11/04/2016; male; fw 16.0mm
Page published 14/03/2017 (§1-9)