Oak Slug Sawfly - Caliroa annulipes


The common name comes from the slug like appearance of the larvae and the fact that Oak is often favoured as their host plant although other trees such as Lime are used.  The larvae are greenish, often yellower towards the head and quite transparent when young, becoming greener with age. The adult sawflies are about 1 cm long and appear black.


Larvae can be found on the leaves of Oak, Lime and other trees .

When to see it

Adults from May to August. The larvae most likely to be found in early autumn.

Life History

The larvae feed on leaves, favouring Oak but also using other species such as Lime.

UK Status

Fairly common in Britain, but under recorded.

VC55 Status

Status in Leicestershire and Rutland not known.

Leicestershire & Rutland Map

UK Map