No Relative

Apart from coming from the same order of insects the Lepidoptera,  therefore similar to the connection between Adam and an Orangutan.

Having no qualifications as an identifier I would start looking among the Skippers first for this:

And the hairy caterpillar could be an Oak Eggar:

 Whatever, it was nice to meet them. But a question came up when I looked around. I read somewhere about an 'adult caterpillar'. Can you say this? Does each stage have young and adult?