wild silk 1000 years before Celtic context

[PMBardunias]

This puts silk in the Mediterranean 1500 years before the Principate.

There are "wild" silk cocoons in your back yard, for moths and many other insects use silk to spin cocoons. Some cultures use this wild silk and other sources such as spider silk, but this is a far cry from an industry. Do you know if there is any reason they believe it to be imported? Maybe it is intact enough to tell something about the species that spun it.