I am certainly no expert, and am really just getting into bug ID’s as it’s a subject that really interests me, and it helps a lot being a nature
photographer.

Anyway, I ran across this caterpillar group, and wonder if you have considered Datana Ministra, or the yellow-necked cat instead? They do have this very red and yellow phase, and the
broad yellow band and black marking on the caterpillars neck suggested Ministra to me, over Major? They look very similar, and as I said, I am no expert, but perhaps you might look into it?

Thank you so much for all you do!