I see these skinny black dauber-like insects almost daily on the Buddleia, but they seldom remain stationary. I have not been able to nail down an ID. http://www.gallery.leica-users.org/v/OldNick/20201007-DSCF2161.JPG.html X-T2 with hybrid macro - Leica-R 60 Macro + Leica-R 2X Extender. -- Jim Nichols Tullahoma, TN USA