tetrio sphinx, frangipani hornworm or plumeria caterpillar

apolysis aposematic arthropod band black body cast caterpillar colored covering cuticle cycle dogbane ecdysone endopterygota epidermis exoskeleton external exuviae grow growth grub hard hasdrubal hawkmoth hormone horn hornworm inflexible insect instar integument invertebrate jute known larvae layer lepidoptera life macroglossinae maggot metamorphosis molting moth moult moulting ocelli outer pale pattern pharate pseudosphinx pupa pupate purplish red reddish remain replace rigid shedding shell skeleton sloughing sphingidae sphinx spot stadium structure tetrio tetriosphinx transformation velvety worm wriggler yellow