Bombus meridionalis DALLA TORRE,1879:13; Bombus hispanicus PITTIONI, 1939c:244, nec FRIESE, 1911:571 (= B. monticola Smith); Megabombus asturiensis TKALCU, 1975:181 replacement name for hispanicus PITTIONI, 1939c: 244; Megabombus ?reinigiellus RASMONT, 1983:43; Megabombus dejonghei RASMONT 1982After P. Williams: http://www.nhm.ac.uk/research-curation/research/projects/bombus/mg.html#hortorum
A large bumblebee with a very long tongue, which is often held outstretched as the bee approaches a flower. It is one of three species found visiting very deep blooms such as foxglove (Digitalis purpurea) and honeysuckle (Lonicera periclymenum) (the other bees being B. pascuorum and B. ruderatus). Separating B. hortorum from its close relative B. ruderatus is very difficult and has resulted in considerable problems in establishing the range of the latter species. (See BWARS Newsletter, Autumn 2004, pp 27-28).
Found throughout the British Isles (including the Channel Islands and Ireland), although often one of the less frequent of the commoner bumblebee species. Overseas it occurs across Northern and Central Europe and Asia, from the Atlantic to Western Siberia.