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Perga sp.
These larvae of the sawfly are called spitfire grubs. They feed on eucalyptus overnight and huddle in a group on a strong stem during the day. These differ from Perga dorsalis by being grey and having red heads.
http://plantationhealth.com.au/pdf/pestn... Already large and its still winter. A smaller group nearby are possibly the same species. http://lepidoptera.butterflyhouse.com.au... http://www.brisbaneinsects.com/brisbane_...
Spotted on Aug 12, 2012
Submitted on Aug 14, 2012
3 Comments
This link names a fully read headed sawfly as P. dorsalis???
http://lifeunseen.com/index2_item_3407.p...
At least one of them has half a black head?
wow!