Small Eggar caterpillars

Small Eggar is a scarcely seen moth in Devon. The adult moths fly in late winter, a time of year when moth recorders tend not to be out and about. However, the colourful caterpillars live in groups and construct a characteristic silken ‘tent’ in hedgerows in spring and summer, and are more easily recorded. Nevertheless, we rarely receive more than a couple of records of this species each year.

Last weekend, David and Sue Mentz spotted a Small Eggar nest and caterpillars about 2m up in a hedge near Ide, on the outskirts of Exeter. One of their images is shown below.

If you spot Small Eggar caterpillars, please let us know, but be aware that there are other moth caterpillars that live in silken nests (e.g. Lackey), so photographs of the caterpillars would be very useful to confirm your sighting.

Small Eggar caterpillar (David & Sue Mentz)

Small Eggar caterpillar (David & Sue Mentz)

Rare Small Eggars spotted

The Small Eggar is a moth that appears to have declined greatly in Devon, and nationally, over recent decades. In the past three years, only four records of the species have been submitted to Devon Moth Group.

It was good news therefore, last week, when Mike Finn reported finding and photographing a larval nest of Small Eggar caterpillars near Sidmouth. (click on photos below for larger images)

Small Eggar moths fly very early in the year, typically between January and March, and are rarely seen or recorded. The distinctive caterpillars and their communal nest are much more easily spotted, usually in hedgerows or scrub, during spring and summer.

We’d be very grateful for any further sightings.

Small Eggar larvae and larval nest

Small Eggar larvae & larval nest

Small Eggar larvae

Small Eggar larvae