Eucosma tripoliana (Barrett, 1880) Species
Last modified: Dec. 11, 2023, 2:09 p.m.
A very rare and local species in the northern part of Belgium. Mostly recorded at the coast and at the estuary of the Schelde.
Details
- Classification
- Family: Tortricidae > Subfamily: Olethreutinae > Tribus: Eucosmini > Genus: Eucosma > Species: Eucosma tripoliana
- Vernacular names
- Zeeasterknoopvlekje (NL), Saltmarsh Bell, Saltern Tortrix (EN), Strandaster-Blütenwickler (DE)
- First mention in Belgium
- Janmoulle E. 1952a. Espèces nouvelles pour la faune belge (suite). — Lambillionea 52: 13, 25–26, 49–50. On page 49.
- Status
-
Native
Distribution
Imago
Wingspan 13–17 mm. A quite variable species but generally shows a clear dorsal patch, ocellus with black dashes and costal strigulae.
Museum specimens
Specimens in nature
Caterpillar
The caterpillar is pale reddish-yellow with a black or brown head and brown prothoracic plate.
Bionomics
The larva lives in the inflorescence among the spun flower heads, feeding on the achenes, often betraying its presence with frass on the flower head. It overwinters on the ground as a larva in a silk hibernaculum coated with detritus, and must be able to survive being covered by high tides.
The adults are active from late afternoon and come to light.
Flight periods
The adults have been observed from late july towards early September.
Observed on
- Host plant (species):
- Tripolium panniconum
The larva lives on Tripolium pannonicum. Also mentioned is Aster amellus for specimens observed inland, but is this correct?
Habitat
It inhabits salt marshes.
