This is another insect attracted to flowering Ivy. German Wasp is pretty similar to the Common Wasp (Vespula vulgaris), but has some slightly different features - especially the black on the front of the face. Where Common Wasp has an anchor-shaped black mark above the mandibles, German Wasp has 3 black spots, though sometimes the centre one is fused (as in this case) into a line. It’s a rather common species, but this is the first one that I’ve identified in the garden.