Teleiopsis diffinis (Haworth, 1828)
large groundling
on Rumex
mijn
The young larva makes a slender sinuous gallery with only here and there some frass. Sometimes the mine is widened near the leaf margin into a blotch. The larva may make several mines. Older larvae live free at the underside of a near-ground leaf in with silk a more or less tubular contracted margin, often causing window feeding.
Bland ao do not write about a mine; perhaps it is not made in all cases.
host plants
Polygonaceae, monophagous
Rumex acetosa, acetosella, crispus, roseus.
phenology
Two generations; larvae from August till May and from July till August.
distribution within Europe
larva, pups
Mining larva very active,yellowish brown (body, prothorax, head). Pictures of both mining and free living larva and pupa in Heckford & Beavan. See also the description in Huertas Dionisio (2012a).
references
Baldizzone & Scalercio (2018a), Bland, Corley, Emmet ao (2002a), Heckford & Beavan (2019a), Huertas Dionisio (2007a, 2012a), Huertas Dionisio, Vázquez García & Sánchez Gullón (2013a), Kaitila (1996a), Microlepidoptera.nl (2019), De Prins & Steeman (2013a), Requena (2009a), Wegner (2010a).