Rhogogaster viridis - Rhogogaster viridis

Description

This common sawfly is one of several similar species. The pterostigma (the coloured mark on the front edge of the wing) is uniformly green or yellow in this species and it has a small black line on side of its thorax. Usually there is a black band along the top of the abdomen.

Similar Species

Separating R. viridis and R. chlorosoma can be tricky. Both species have a variable amount of black but R. chlorosoma is generally paler. The best character is the relative length of the pads on the back of the tarsal segments (called pulvilli) - these are about half the length of the following segment in (female) chlorosoma but shorter in viridis. A thin black line in the groove on the side of the thorax is often a good clue for viridis too but not entirely reliable as there is sometimes a trace of a line in chlorosoma too.

Habitat

Adults visit a range of habitats hunting for small insects on flowers.

When to see it

It flies from May to August

Life History

The larvae eat a range of plant leaves.

UK Status

Widespread and fairly frequent in Britain.

VC55 Status

Common in Leicestershire and Rutland.

Leicestershire & Rutland Map

UK Map