Tree caterpillars

Question

Please identify these caterpillar for my

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Answer 1

These may be Tent Worms, though with limited information an id is difficult.
https://www.gardeningknowhow.com/plant-problems/pests/insects/tent-worms-control.htm
You can take a sample to your County Extension Office as they can help id for your region and growing zone.
https://www.gardeningknowhow.com/extension-search/