32.039 Depressaria daucella (Dingy Flat-body)
ws: 22-25mm; Aug-Apr; water-dropwort species (Oenanthe spp), whorled caraway (Carum verticillatum); locally common along watercourses, ditches, river margins, marshes, wet meadows and damp moorland through out GB - more common in West than East.
Depressaria daucella §1 male
ID: From key in MBGBI4.1 - Fw costal 2/5 not contrastingly reddish, without round white dot in disc at 2/3 >
A. labial palp S3 blackish with pale tip; thorax concolorous with forewing > D.daucella OR
B. labial palp S3 with 2 dark bands; fw without whitish suffusion along costa, without row discrete terminal dots, with indistinct fascia at 3/4 angled at 40-60 deg (not 80-100 deg); ws 21-24mm > D.daucella (the size range quoted in the key is different from that quoted in the text, 22-25mm - this couplet separates D.daucella from the smaller D.ultimella which has ws quoted as 16-20mm in the key and 16-21mm in the text).
Specimen §1 gets to D.daucella either way and the distinctive sacculus in the male genitalia confirms the ID
A. labial palp S3 blackish with pale tip; thorax concolorous with forewing > D.daucella OR
B. labial palp S3 with 2 dark bands; fw without whitish suffusion along costa, without row discrete terminal dots, with indistinct fascia at 3/4 angled at 40-60 deg (not 80-100 deg); ws 21-24mm > D.daucella (the size range quoted in the key is different from that quoted in the text, 22-25mm - this couplet separates D.daucella from the smaller D.ultimella which has ws quoted as 16-20mm in the key and 16-21mm in the text).
Specimen §1 gets to D.daucella either way and the distinctive sacculus in the male genitalia confirms the ID
Dissection
Male genitalia
Female genitalia
§1 Lands End, Cornwall; 24/09/2011; male; fw 10.9mm
§2 St Marys, Isles of scilly; 03/10/2014; male; fw 11.3mm
§3 St Marys, Isles of scilly; 17/10/2014; female; fw 10.9mm
§4 Compton Bishop, Somerset; 27/08/2014
§5 St Marys, Isles of Scilly; 29/09/2017; female; fw 10.4mm
All images © Chris Lewis
§2 St Marys, Isles of scilly; 03/10/2014; male; fw 11.3mm
§3 St Marys, Isles of scilly; 17/10/2014; female; fw 10.9mm
§4 Compton Bishop, Somerset; 27/08/2014
§5 St Marys, Isles of Scilly; 29/09/2017; female; fw 10.4mm
All images © Chris Lewis
Page published 07/12/2011 | §2&3 added 29/10/2014 | §4 added 27/11/2014 | §5 added 30/11/2017
