Biorhiza pallida OLIVIER, 1791 (Oak Apple gall wasp, Eichenschwammgallwespe)more info (German):
de.wikipedia.org/wiki/SchwammgallwespeFamily: Cnipidae (Gall wasp, Gallwespen)Suborder: Apocrita (Taillienwespen)Order: Hymenoptera (Hautflgler)NE-Germany, Brandenburg: vic. Doberlug-Kirchhain, ca. 50m asl., 27.05.2012IMG_0723