49.144 Eudemis profundana (Oak Marble)
ws: 14-20mm; Jul-Aug; oak (Quercus spp); common in oak woodland in England & Wales
Eudemis profundana §2 female
ID: Similar to E.porphyrana but distinguished by the presence of a strong dorsal portion of the subbasal fascia in E.profundana; this being obsolescent in E.porphyrana.
Male genitalia: Probably the best distinguishing feature is the comb of saccular hairs. In E.profundana the hairs are long and have a relatively short origin (hair length ~2x width of valva; breadth of origin clearly shorter than the hair length); in E.porphyrana the hairs are shorter and have a relatively broad origin (hair length ~1x width of valva; breadth of origin longer than hair length). The valva as a whole is narrower and straighter in E.profundana (valva length:width at lateral end of basal cavity ~6 in E.profundana <5 in E.porphyrana; costal margin minimally humped at lateral extremity of basal cavity and shallowly curved distal to this point in E.profundana, costal margin distinctly humped at lateral extremity of basal cavity and distinctly curved distal to this point in E.porphyrana. (MBGBI5.2 also indicates a difference in the uncus, but is unclear about what this difference is)
Male genitalia: Probably the best distinguishing feature is the comb of saccular hairs. In E.profundana the hairs are long and have a relatively short origin (hair length ~2x width of valva; breadth of origin clearly shorter than the hair length); in E.porphyrana the hairs are shorter and have a relatively broad origin (hair length ~1x width of valva; breadth of origin longer than hair length). The valva as a whole is narrower and straighter in E.profundana (valva length:width at lateral end of basal cavity ~6 in E.profundana <5 in E.porphyrana; costal margin minimally humped at lateral extremity of basal cavity and shallowly curved distal to this point in E.profundana, costal margin distinctly humped at lateral extremity of basal cavity and distinctly curved distal to this point in E.porphyrana. (MBGBI5.2 also indicates a difference in the uncus, but is unclear about what this difference is)
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§1 Sutton Fen, Norfolk; 23/07/2008; male; fw 8.5mm
§2 Foulness, Essex; 01/08/2012; female; fw 9.4mm §3 Westcliff-on-sea, Essex; 18/08/2010; fw 8.5mm §4 Belfairs Woods; Essex; 18/07/2014; female; fw 7.4mm §5 Belfairs Woods; Essex; 18/07/2014; male; fw 8.2mm §6 Belfairs Woods; Essex; 18/07/2014; male; fw 8.1mm §7 Belfairs Woods; Essex; 18/07/2014; female §8 Belfairs Woods; Essex; 18/07/2014 §9 Belfairs Woods; Essex; 18/07/2014 §10 Belfairs Woods; Essex; 18/07/2014 All images © Chris Lewis |
§11 Seathwaite, Cumbria; 23/07/2016; male; fw 8.6mm
§12 Foulness, Essex; 28/07/2018; female; fw 8.4mm §13 Orlestone Forest, Kent; 26/07/2018; male; fw 7.2mm §14 Westcliff-on-sea, Essex; 07/08/2021; female; fw 8.3mm §15 Westcliff-on-sea, Essex; 18/07/2022 |
Page published 08/01/2013 (§1&2) | §3-10 added and page redesigned 03/02/2015 | §11 added 02/07/2017 | §12 added 25/04/2019 |
§13 added 26/07/2019 | male genitalia text added 24/11/2020 | §14 added 07/11/2021 | §15 added 19/12/2022
§13 added 26/07/2019 | male genitalia text added 24/11/2020 | §14 added 07/11/2021 | §15 added 19/12/2022
