Board Thread:News and Announcements/@comment-28288412-20171005151729/@comment-34633327-20171010052009

LucasVerBeek wrote: If those things In the new trailer are rapier wasps then credit to Jaune for catching them. I think Chish brought up the possibility the ones Jaune caught were only Junior Wasps, much like how the bird Ruby killed during the Cliff thing was a Junior Nevermore. So these things may just be fully grown Rapier Wasps.

@Chish: The dust page does say Gravity Dust comes off as Purple and Black, those islands could very well be Dust Supositories specifically for Gravity Dust. As for why they haven't been mined yet, with those Grimm chasing Weiss' ship around, it's quite possible those Grimm have the islands as territory, and the lack of effective aerial combat outside of Atlas' ships makes it hard to get past them.