Cameraria ohridella -horse-chestnut leaf miner moth – Invasive species

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Cameraria ohridella is a small moth. Adults are around 3.5mm in forewing length. They are orange-brown in colour and have:

a basal white longitudinal streak
4 whitish, bent or interrupted fasciae edged in black
greyish brown hindwings, long-fringed
orange-tufted head
antennae over 4/5 forewing length
legs with equal white and black bands
Larvae are also small – up to 5.5mm long.

The moth’s leaf mines are easily recognised as multiple, conspicuous whitish yellow and brown blotches on the surface of horse-chestnut leaves and cause significant browning towards the end of the summer.

 

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