---

How much water is there in your garden ? Gunnar may be right, but Clytocerus is rarely found far from damp habitats (although it is very common and very resistant to pollutants). Sycorax (there are 3 British species now, one only in Ireland - so far !) are much smaller and paler with no contrasting dark scales: they are closely associated with tufa formations. I'm not going to commit myself to this actually being a Clytocerus: I don't do them with scales on ! It might equally be a Pericoma - the scape is not that long.