Bagworm Moth

Description:

Based on the lack of information and pictures of Psychidae online, I have been assuming that these rather strange moths have not been the subject of much scientific study. However, I could be quite wrong. It might just be that even with a great deal of scientific study, these creatures are always going to be difficult to identify. Please see Notes below.

Habitat:

This Bagworm Moth was spotted in our backyard on the underside of a Banana leaf.

Notes:

I find it difficult to accept the idea that one can identify species by the bags that they create. It seems that even if two larvae, of the same species, were given identical materials, I would find it difficult to believe that these materials could be assembled in the exact same way by both larvae. I would need a great deal more information than "Each species makes a case particular to its species, making the case more useful to identify the species than the creature itself." as stated in https://en.wikipedia.org/wiki/Bagworm_mo....... I think that what is meant by that statement might be "Each species makes a case using certain materials particular to its species, making the case more useful to identify the species than the creature itself." That would be somewhat more understandable, but there is still a problem. If each bagworm uses materials particular to its species, what would happen if a bagworm found itself in an area where one or more of these materials were not available? I can think of several more relevant questions of this nature, concerning materials and bagworms. If anyone could please advise me of any scientific publications dealing with this subject, I would extremely grateful.