Rubens can be safely excluded, it has totally different palps (swollen femora, different apophyses). It is clearly a member of the Gonatium hilare group. However, I did not consider Gonatium biimpressum when writing my post. I don't know whether it comes in question in the area. Gonatium hilare itself should inhabit higher montane ranges and is brighter red but its palps are similar too.