Heart Moth Dicycla oo: Distribution map

Please note that the NBN Gateway map service has been terminated as of 1 April 2017.

As soon as a replacement map service is available, distribution maps will hopefully appear here again.

In the meantime, you can get some idea of distribution from the NBN Atlas website.

View the NBN Atlas Map

73.218 BF2315
Heart Moth Dicycla oo

(Linnaeus, 1758)


Wingspan 32-38 mm.

A very local species, inhabiting woodland and parkland in and around the Home Counties.

The Latin name is derived from the two roundish stigmata, but the outer one usually is heart-shaped, in common with the English name.

The single generation flies in June and July, when it can be attracted to sugar as well as light.

The larva feeds during the night on oak (Quercus robur), and retreats by day into a hiding place made from leaves spun together with silk.
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