Rosemary Beetle - Chrysolina americana


Attractive, 8mm long, metallic green beetle with purple stripes.

Photo ID?

To be found on Rosemary, Lavender, Thyme, Sage and some other related plants.

When to see it

May to October.

Life History

The soft-bodied grubs are greyish white with five darker longitudinal lines; fully grown larvae are 5 to 8mm long.

UK Status

The beetle is a native of southern Europe that has become an established pest in Britain since the 1990s especially in the south east of England. It seems to be rapidly colonising the country.

VC55 Status

Infrequent but probably under recorded in Leicestershire and Rutland. There were a total of 5 VC55 records for this species up to March 2015.

Further Information

Leicestershire & Rutland Map

UK Map