GEOMETRIDAE | Larentiinae | Cidariini

70.104 Lampropteryx otregiata (Devon Carpet)

fw: 12-14mm; bivoltine May-Jun, Aug-Sep; marsh bedstraw (Galium palustre); NS-B in damp woodland in SC&SW England and Wales
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Lampropteryx otregiata (Devon Carpet) §1
ID: There are 5 species of carpet that have forewings with a brown basal fascia edged white distally and a brown central cross-band edged white proximally and distally. L.suffumata (Water Carpet) is larger (fw 14-17mm) and is characterised by a shiny texture, acute indentations of the proximal margin of the central cross-band and a double-pointed projection from the distal margin of the central cross-band. L.otregiata has a similar double-pointed projection but is smaller (fw 12-14mm); it has a more or less straight costal 1/3 of the distal margin of the central cross-band of the forewing; the proximal margin of the central cross-band is irregular but does not show the deeper sharply-pointed indentations seen in L.suffumata. Ecliptopera silaceata (Small Phoenix) lacks any significant projection from the distal margin of the central cross-band and shows a subterminal series of dentate interneural blotches. Eulithis prunata (Phoenix) is much larger (fw 17-19mm). Electrophaes corylata (Broken-barred Carpet) has a narrower central cross-band which is usually pinched or separated into two parts at the junction of the costal 2/3 with the dorsal 1/3.
Female genitalia: the antrum is distinctly transverse (almost quadrate in L.suffumata)
  • Variation
  • Dissection
  • Male genitalia
  • Female genitalia
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§1 Newborough Forest, Anglesey; 30/07/2007; fw 13.0mm 
§2 Newborough Forest, Anglesey; 01/08/2007 
§3 Westwood Marsh, Suffolk; 11/08/2015; fw 11.8mm; male; to light
​§4 Cliburn Moss, Cumbria; 30/07/2019; male; fw 11.5mm
§5 Cliburn Moss, Cumbria; 18/06/2019; female; fw 12.9mm
§6 Cliburn Moss, Cumbria; 24/06/2019; male
All images © Chris Lewis
Page published 14/04/2013 (§1-2) | §3 added 25/08/2015 | §4 added 20/10/2019 | §5 added 23/01/2020 | §6 added 24/06/2020