Eucosma obumbratana (Lienig & Zeller, 1846) Species
Last modified: Dec. 10, 2023, 5:59 p.m.
A rare species throughout Belgium.
Details
- Classification
- Family: Tortricidae > Subfamily: Olethreutinae > Tribus: Eucosmini > Genus: Eucosma > Species: Eucosma obumbratana
- Vernacular names
- Tweekleurig knoopvlekje (NL), Two-coloured Bell, Shaded Tortrix (EN), Gänsedistel-Samenwickler (DE)
- Synonyms
- Eucosma expallidana sensu auct.
- First mention in Belgium
- De Crombrugghe G. 1907b. Compte rendu des recherches entomologiques entreprises à Rochefort, pendant l’été de 1907. — Revue mensuelle de la Société entomologique namuroise 7: 42–46. On page 45.
- Status
-
Native
Distribution
Imago
Wingspan 14–20 mm. General colour is a fulvous brown shade with a paler dorsum that widens to include the ocellus that has black dashes. The dorsal patch is not distinct and there are costal strigulae terminally.
Museum specimens
Specimens in nature
No pictures yet!Genitalia
Bionomics
The larva feeds in the flower heads and hibernates as a full-grown larva and pupates in a cocoon in the ground.
The adults are active at dusk and later come to light.
Flight periods
The adults fly from late May till late July, sometimes till August. Most observations during July.
Observed on
- Host plant (species):
- Sonchus arvensis
The larva feeds on Sonchus arvensis and perhaps also on Picris hieracioides.
Habitat
It inhabits farmland, arable areas, waysides, rough meadows and embankments.
