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 .

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

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

Fairly common in Britain, but under recorded.

Status in Leicestershire and Rutland not known.