Eucosma aspidiscana (Hübner, 1817) Species
Last modified: Dec. 4, 2023, 10:32 a.m.
A very rare and declining species in Belgium, mostly recorded in the southern part.
Details
- Classification
- Family: Tortricidae > Subfamily: Olethreutinae > Tribus: Eucosmini > Genus: Eucosma > Species: Eucosma aspidiscana
- Vernacular names
- Streepjesknoopvlekje (NL), Golden-rod Bell (EN), Goldruten-Blütenwickler (DE)
- First mention in Belgium
- De Fré Ch. 1858. Catalogue des Microlépidoptères de la Belgique. — Annales de la Société entomologique belge 2: 45–162. On page 84.
- Status
-
Native
Distribution
Imago
Wingspan 13–19 mm. Characterised by the general golden brown coloration of the forewing, the conspicuous costal strigulae, the blackish longitudinal streaks from the basal area to the median fascia and the well-developed ocellus.
Museum specimens
Specimens in nature
Caterpillar
The larva is yellow-reddish with more or less clear pale warts, the head and neck shield are lighter or darker brown, the latter usually has darker dots on the side and back, the anal valve is lighter or darker brown.
Bionomics
The larva lives in August/September at first in the flower head of the food plants. At a later stage it burrows into the stem. It hibernates full-fed in a cocoon spun in the soil or amongst leaf-litter. Pupation takes place in the cocoon.
The adults are easily disturbed in sunshine. They fly at sunset and later come to light.
Flight periods
The adults fly from the end of April till late June. Most observations during May.
Observed on
- Host plant (species):
- Solidago virgaurea
The larva lives on Solidago virgaurea. Others plants in literature are undocumented and are probably wrong.
Habitat
It inhabits open places, open woods, roadside verges and calcareous grasslands.
