Looks like one I found on the net , not 100% sure https://www.jungledragon.com/image/73871/dingy_or_dainty_swallowtail_caterpillar_in_its_final_instar_papilio_anactus.html
In lieu of a comprehensive study or guide to the larvae of the nearly 60 species in subfamily Perginae; subfamily level identification is the only valid option.