Digitivalva arnicella (Heyden, 1863) Species
Last modified: March 2, 2021, 11:16 a.m.
This very rare and local species was recorded only once from the Belgian fauna: LX, Bastogne, 1955-08-21, where an empty chrysalid was found in the pupation place on Arnica montana, leg. E. Janmoulle. It was rediscovered in 2018 in an adjacent province (LG) and this time leaf mines were found (Wullaert S. 2019b).
Details
- Classification
- Family: Glyphipterigidae > Subfamily: Acrolepiinae > Genus: Digitivalva > Subgenus: Digitivalva > Species: Digitivalva arnicella
- Vernacular names
- Valkruidmineermot (NL), Arnika-Rundstirnmotte (DE)
- First mention in Belgium
- Janmoulle E. 1955a. Espèces nouvelles pour la faune belge (suite). — Lambillionea 55: 3–4, 53–54, 82. On page 54.
- Status
-
Native
Distribution
Imago
Wingspan 11–13 mm.
Museum specimens
No pictures yet!Specimens in nature
No pictures yet!Caterpillar
Larvae can be found from autumn till May.
Mine
Starting with a light green, narrow, sometimes branching corridor, widening considerably later. Frass in an irregular, rather broad central line. In the thin mines in autumn, the frass is more concentrated against the side, making it look like a fly mine.
See also bladmineerders.be
Bionomics
The caterpillar frequently moves to another leaf. Pupation in a separate, lower-surface mine.
Flight periods
One long generation a year: from May till September.
