Seq # 245220020

Pleurota bicostella (Clerck, 1759) Species

Last modified: June 10, 2023, 2:35 p.m.

In Belgium, this rare species is mainly known from the Kempen region and from the southern provinces.


Family: Oecophoridae > Subfamily: Pleurotinae > Genus: Pleurota > Species: Pleurota bicostella
Vernacular names
Gemsmot (NL), Weißstreifenmotte (DE)
First mention in Belgium
De Sélys-Longchamps E. 1844. Énumération des insectes Lépidoptères de la Belgique. — Mémoires de la Société royale des Sciences de Liége 2: 1–35. On page 24. view page




Museum specimens

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Specimens in nature


Pinkish grey, head capsule and prothoracic plate yellowish brown.

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The species hibernates in the larval stage, from July till May. It spins a silken gallery between the leaves of its host plant, mainly between the shoots.
The adults are mainly active in the evening.

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Flight periods

One generation a year: from May till August.

Observed on

Host plant (species):
Calluna vulgaris, Erica cinerea and Erica tetralix

Oligophagous on: Calluna vulgaris and on several species of Erica.

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Very varied habitats, xerothermic slopes, sandy areas, but also open places in forests where the larval host plants grow.

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