UK Status
Resident. Widespread and locally common as far north
as the Lake District
Montgomeryshire Status
Infrequently recorded from the western side of the county.
Wingspan
:
M & F, 5-7mm.
Confusion species
Care should be taken, other species of Heliozela are very similar.
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Flight time & Voltinity
(Univoltine)
Habitat
Wherever the foodplant is found.
Foodplant
Birch.
Lifestage data
Stem/Leaf miner/Case bearing. Eggs laid under the bark of twigs. Larva
mines stem, then enters the lmidrib of leaf where it builds a case,
this is carried to ground where it is attached. Pupa formed inside case. |
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