Seq # 361610005

Aethes bilbaensis (Rössler, 1877) Species

Last modified: Nov. 19, 2022, 1:57 p.m.

A recent arrival in Belgium (2017). A very rare and local species.
Distribution based on specimens examined for genitals.


Family: Tortricidae > Subfamily: Tortricinae > Tribus: Cochylini > Genus: Aethes > Species: Aethes bilbaensis
Vernacular names
bruinschoudersmalsnuitje (NL)
First mention in Belgium
Steeman C. & Sierens T. 2018. Interessante waarnemingen van Lepidoptera in België in 2017 (Lepidoptera). — Phegea 46(2): 31–47. On page 45.




Caution is required because individuals from Aethes bilbaensis, A. flagellana, A. beatricella, A. francillana, A. tornella and A. dilucidana can only be distinguished reliably with a genital examination.
Approx Length (c. 7.5mm) Wingspan 10–15 mm. The leading edge of the forewing has a fairly broad zone with brown scales and is a relatively consistent characteristic view.

Museum specimens

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Specimens in nature



The larva lives freely on the faded umbels, feeding on the fruits of the food plant. Then it bores itself into a stem, in anticipation of hibernation where it also pupates. The adults fly mainly during the day and at dusk and comes sparsely to light.

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Flight periods

The adults fly from late June towards September with a peak in July.

Observed on

Host plant (species):
Crithmum maritimum and Daucus carota
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The larva lives on different species of Umbelliferae.

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