"Can/will yoiu obtain some samples (of the larvae and plant) please, if you're not going to raise them yourself? If there's much diff between larvae, get some of the diff instars represented (or at least some photos of each) and some larvae of the oldest instar. Don't forget to notice the length of the cats...! As always, thanks a lot (if you undertake this mission. )
btw. damage to the plant = eaten by the cats = probable LFP.