Chervil (probably not) and Visitors

I found this beautiful flower and its visitors on a hike in the mountains in an alpine meadow, where it is rather common. I thought at first that it's a chervil (dt. Kerbel) but I'm sure it's not. I know chervil. It has a more flat top, rougher flowers and fruit. I think it might be "Chaerophyllum hirsutum" (dt. rauhaariger Kälberkropf), but I'm not sure at all. Unfortunately I don't have a clue what could be its name in English. Anybody have an idea?

 

Plant in an alpine meadow above Flims (rr. Flem), Surselva, Grison, Switzerland.

Done