The colours of the legs and prolegs would be interesting, but more importantly a lateral view might show the verrucae and their colours. I was hoping Tapirlord might have taken more photos but not posted them.
This was recorded on 14 April 2021. I am intrigued; what do the prolegs tell us amongst different Anthelinae ? Or for separations Anthela sp and Pterolocera sp ?? Is there a diagram of the external anatomical parts of caterpillars on your site, Don ? lepidoptera.butterflyhouse.com.au I find the moth ones very helpful and refer to them often, but can't find one for a caterpillar.