Idaea dilutaria (Hübner, 1799) Species
Last modified: Oct. 4, 2023, 12:40 p.m.
A rare species in Belgium, confined to the southern provinces. Nowadays (2020), all observations come from the limestone area, where in some places it can be numerous.
Details
- Classification
- Family: Geometridae > Subfamily: Sterrhinae > Tribus: Sterrhini > Genus: Idaea > Species: Idaea dilutaria
- Vernacular names
- Parelstipspanner (NL), Silky Wave (EN), L'Acidalie diluée (FR), Einfarbiger Zwergspanner (DE)
- First mention in Belgium
- Lambillion L.-J. 1900–1913. Catalogue des Lépidoptères de Belgique. — Revue mensuelle de la Société entomologique namuroise Supplément: 1–464. On page 244.
- Status
-
Native
Distribution
Imago
Wingspan: 18–23 mm.
Museum specimens
Specimens in nature
Bionomics
Hibernates as larva and pupates in a cocoon on the ground.
The adults are easily disturbed by day. They are active from dusk onwards and later come to light.
No pictures yet!
Flight periods
The adults fly in one generation a year from late June to end of July.
Observed on
- Host plant (species):
- Helianthemum nummularium
- Substrates:
- Herbaceous plants and Lichens
The larva lives on various herbaceous plants like Helianthemum mummularium and also on lichens.
No pictures yet!
