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0290 ~ Caloptilia semifascia
UK Status

Resident. A widespread but local species found in England, the far north as far north as Cumbria and in Wales.

Montgomeryshire Status

First recorded in 2013 at Middletown in the east of the county. This is only the fourth record of this local species in north Wales.

Wingspan :   M & F 10-12mm.

Confusion species

Caloptilia falconipennella.
Flight time & Voltinity (Bivoltine.)


Woodland, hedgerows and gardens.


Field maple and sycamore.

Lifestage data

Leaf miner. Eggs laid on underside of leaf. Larva first produces narrow mine which leads to a blotch, later it feeds within rolled leaves often forming a cone. Pupates in a cocoon attached to either side of the leaf.
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Montgomeryshire photos

Photo by DB, 19th Sept 2013, Middletown
Leaf mine on field maple

Photo by DB, 30th Mar 2014, Middletown