Bombus hypnorum is quite common in a large part of continental Europe. It is found form Normandy (W. France) to Kamchatka and from the Pyrenees to the northern tree-line. It is completely absent from the Mediterranean region. In the Iberian peninsula, it is only found in some montane localities of the Pyrenees. In Italy, it does not live south of the Tuscany. It is absent from the Balkan, as from the steppic regions of Romania, Ukraine and S Russia. It has not been found in Asia Minor. It seems to expand toward the West since one century (Rasmont 1989). It was completely absent from the British Isl. until recently but it was first observed in England in 2001 (BWARS). It extended then very quickly (see http://www.bwars.com/bombus_hypnorum_map.htm). It is now expanding in Iceland where it was first observed in 2008 (http://www.ni.is/frettir/nr/1246).
P. Rasmont