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of the Lepidoptera of Belgium

Eupoecilia ambiguella (Hübner, 1796)

Only known from some northern areas in Belgium. In 2006 recorded for the first time in the south of the country.

The larva feeds in the berries of Frangula alnus, spinning two or three together. It sometimes occurs also on Hedera, Lonicera or Swida. When full-fed it constructs a leaf-case amongst detritus on the ground or attached to a stem, overwintering therein. Pupation in that leaf-case. A few larvae pupate already in summer or early autumn, producing a second, partial generation.

The adults have been observed from late May till the end of July, and a partial generation occurs in August. The moths are active in the evening and later come to light.

Belgium, Namur, Belvaux, 03 June 2006
(Photo © Chris Steeman)
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© Flemish Entomological Society