Eucalyptus wasp galls

Description:

Raised flat velvety galls of mostly purple shades. Approximately 3mm .

Habitat:

Suburban back yard on a few leaves of E.microcarpa.

Notes:

A chalcidoid wasp leaf gall. Already in many places around the world and a pest to eucalyptus in some places. A view of the female wasp here... http://www.fredon-corse.com/imageBank/6/... and a good read here... http://cisr.ucr.edu/blog/invasive-specie...