Levélaknák és levélaknázók

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CSÓKA GYÖRGY
ERDÉSZETI TUDOMÁNYOS INTÉZET

Parornix betulae Stt.
Lepidoptera: Gracillariidae

Bivoltine (VII. and IX-X.). Host are Betula species. The larva first mines on the underside of the leaf. Later leaves the mine and lives under a downward fold of the leaf margin. On larva regularly makes more folds and changes them. Occurs in Central and North Europe.

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