Gangara thyrsis

Saw these on Roystonea regia trees planted near our society gate - when I saw a caterpillar of Elymnias hypermnestra on same tree's leaf. It seemed they were infected by some wasp- because after suggestion of a friend I went again to bring them to home to see what they are going to be. And they turned into tiny black thing -- and also here it is raining cats and dogs- I can't say why they died. I brought a Elymnias hypermnestra caterpillars home to raise them.