Never had caterpillars in tomatoes so cannot help with identity.
However, I have a little lad who is obsessed with collecting them from my veg to keep as 'pets' in a mini enclosure if you want to borrow him for collecting the crawlies

I do insist they are collected and kept in an enclosure on the property associated with collection so no unlawful taking of property items can be ensued

( and the fact he has brought too many other species onto our property from subsequent huntings

)
He is taking some of his collection to school on Monday for educational research so I've advised they can keep the critters for deeper educational observation

He will work free of charge. Just a drink of juice and slice of cake
