Seq # 270210440

Elachista trapeziella Stainton, 1849 Species

Last modified: March 17, 2021, 12:02 p.m.

This very rare species is not seen in Belgium for quite some time, probably extinct.


Family: Elachistidae > Subfamily: Elachistinae > Genus: Elachista > Species: Elachista trapeziella
Vernacular names
Trapeziumgrasmineermot (NL)
First mention in Belgium
De Crombrugghe G. 1906a. Catalogue raisonné des Microlépidoptères de Belgique. — Mémoires de la Société entomologique de Belgique XIII: 1–172; XIV: 1–155. On page 80.




The wingspan is about 9 mm. This species has a white marking towards the base of the forewing, beyond the median fascia, making it quite easy to identify among similarly marked Elachistidae.

Museum specimens

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Specimens in nature

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The larvae feed on the food plant, creating a mine typical of the genus.

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Flight periods

Adults can be found between May and July.

Observed on

Host plant (species):
Luzula pilosa and Luzula sylvatica

The larvae feed on Luzula spp.

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