Great photo. There is a published photo of a Geometrid caterpillar that has a red mark on the thorax: Oenochroma pallida http://lepidoptera.butterflyhouse.com.au/chro/pallida.html but Steve's photo there does not show any fine white spots, like those that are visible all over your specimen. It could be a different instar, but more likely it is a species for which we do not know the caterpillar yet. Of the 1,270 named Australian species in Geometridae, the Coffs Harbour Butterfly House website only has larval pictures for 147.
Describe how you intend to use these images and/or audio files and your request will be sent to the author for consideration.
Your request has been successfully submitted to the author for consideration.
2,167,104 sightings of 20,573 species in 6,802 locations from 11,955 contributors
CCA 3.0 | privacy
We acknowledge the Traditional Owners of this land and acknowledge their continuing connection to their culture. We pay our respects to their Elders past and present.