Many of these caterpillars are eating away on a Passion Plant.
We live in Sarasota FL.
I would really appreciate your help – I have tried finding information on my own and have failed.
Blessings to you – Jane
Your caterpillar that eats passion vines is the Gulf fritillary. They do feed on the various species of passion flower vines.
This is not considered a garden pest, but is enjoyed for the beautiful butterfly!
Since the larvae feed on passion flower vine they are poisonous if eaten…the bright orange color is a warning to predators – so birds avoid them! This insect is common in Florida and southern states as well as central America. However with the cultivation of passion vine, this insect has extended its range more northward.
Please leave it, so you can see the beautiful butterfly!
Moni has an ebook “Garden Insect Pests of North America – Pictures for Identifying and Organic Controls” Check it out!