Yes, it is.
Frangipani Caterpillars eat the leaves of the Frangipani tree (which contain a toxic sap), and from my observation, they also drink the sap from time to time. This makes them dangerous to both animals and humans (as food).
Otherwise, they are completely harmless (except that it is reported they bite when handled and have dangerous hairs that might irritate the eyes).
Frangipani sphinx moth caterpillar
Yes. Baby caterpillars are poisonous. in fact they are more poisonous than the bigger caterpillar's. the baby hairy caterpillars are poisonous as well
The Vapourer moth caterpillar is hairy and has red spots on their dark gray or black body. They are not a poisonous caterpillar.
No, it is not.
Yes
Yes
The Gulf fritillary caterpillar has soft spines that do not sting. However, it is poisonous if ingested.
No
yes they will make you very sick
After a cursory investigation it appears as though there is no evidence or reported evidence to suggest this caterpillar or the adult form is poisonous.
Yes. Do not touch it. Ispecially if it has prickles on it.
A Antheraea Polyphemus caterpillar is completely harmless to humans and animals. It belongs to a family of the Cyclops Polyphemus and has no venom or any other harmful things.