Seq # 245150010

Oecophora bractella (Linnaeus, 1758) Species

Last modified: March 4, 2021, 3:36 p.m.

A fairly common and scattered species throughout Belgium.


Family: Oecophoridae > Subfamily: Oecophorinae > Genus: Oecophora > Species: Oecophora bractella
Vernacular names
Molmboorder (NL)
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 122. view page




Museum specimens

Specimens in nature


Dark grey, head capsule pale brown, prothoracic and last abdominal segment darker brown.

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Pupation in a silken cocoon in which frass is used.

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The caterpillar constructs a loose, silken gallery under dead bark of various trees, preferably deciduous wood.
Pupation takes place between April and June in a silken cocoon covered with frass in the larval feeding place.
The adults are active in early morning sunshine, they hide during the rest of the day but come occasionally to light.

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Flight periods

One long generation a year: from May till the end of July.

Observed on

Fungi, Dead wood and Lichens

The caterpîllar feeds on decaying wood, lichens and fungi under the dead bark of various trees, like: Acer, Alnus, Betula, Carpinus, Corylus, Fraxinus, Larix, Picea, Pinus, Prunus, Quercus, Salix, Tsuga, etc. especially when the tree is infected with Armilleriella mellia. It has a preference for Carpinus betulus and Fagus sylvatica.

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Open places with a lot of bushes, clearings and roads in forests, parks. The species seems to have a preference for deciduous forests in xerothermic habitats.

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