I'd like to be perfectly honest with you when I say that it does make me a bit uncomfortable since I feel a lot of the traits are the same just minus the dust puffs or additional wings in certain areas. However, that being said, I realize that it can be hard to make another insect-like humanoid without crossing into a moral grey area with traits, since most insects in all reality do have vaguely the same characteristics.
While I can't keep you from doing what you feel is right and that you enjoy, I feel it might be too close as is to make into a closed species.
As a personal, original character its perfectly okay but from one adopt maker to another, I would suggest working on some way to set it aside from the other insect-humanoids, or the Polvere Moths' themselves. It will help set them apart and stand out among the rest.
Please understand that I mean no offense in saying that currently, the design concept that you've shown me, is too close to the Polvere Moths for me to be comfortable with.
I greatly appreciate you taking the species, as well as my feelings into consideration, thank you.