70.163 Eupithecia lariciata (Larch Pug)
fw: 10-12mm; May-Jul; European larch (Larix decidua); common throughout GB
Eupithecia lariciata (Larch Pug) §3 male
ID: Grey-brown; white spot or crest on thorax; cross-lines acutely angled around central spot. Similar to E.egenaria (Fletcher's Pug), which lacks the thoracic white spot; E.tripunctaria (White-spotted Pug), E.subfuscata (Grey Pug) and E.virgaureata (Goldenrod Pug). Genital dissection required for confident identification.
Male genitalia: S8 ventral plate; kink in valval margin
Female genitalia: bursa copulatrix full of spicules with a neat cut-off line at junction with ductus bursae ventrally and with a small semicircle of clear bursa dorsally; ductus seminilis broad and short. E.tripunctaria/virguareata do not have so much of the bursa membrane spiculate; E.subfuscata has a separate spiculate section at the anterior end of the ductus bursae.
Male genitalia: S8 ventral plate; kink in valval margin
Female genitalia: bursa copulatrix full of spicules with a neat cut-off line at junction with ductus bursae ventrally and with a small semicircle of clear bursa dorsally; ductus seminilis broad and short. E.tripunctaria/virguareata do not have so much of the bursa membrane spiculate; E.subfuscata has a separate spiculate section at the anterior end of the ductus bursae.
§1 Buttermere, Cumbria; 27/06/2014; female; fw 11.2mm
§2 Torver, Cumbria; 16/07/2015; male; 10.0mm
§3 Conwy Mountain, Caernarvonshire; 19/07/2015; male
§4 Ballindalloch, Moray; 29/0/2021; female; fw 11.0mm; to light
All images © Chris Lewis
§2 Torver, Cumbria; 16/07/2015; male; 10.0mm
§3 Conwy Mountain, Caernarvonshire; 19/07/2015; male
§4 Ballindalloch, Moray; 29/0/2021; female; fw 11.0mm; to light
All images © Chris Lewis
Page published 12/07/2014 (§1) | §2 added 27/03/2016 | §3 added 09/04/2016 | §4 added 30/08/2021
