Dong Lei / Himalayan honeybee (Apis laboriosa) Mount Namjagbarwa, Yarlung Zangbo Grand Canyon National Park, Nyingchi Prefecture, Tibet, China. October.

Dong Lei / Himalayan honey bees (Apis dorsata laboriosa) on comb, Mount Namjagbarwa, Yarlung Zangbo Grand Canyon National Park, Tibet, China. October.

Sandesh Kadur / Small honey bee (Apis florea) feeding from Himalayan balsam (Impatiens glandulifera) flower, Manas National Park, Kokrajhar, Assam, India

Adrian Davies / Honey Bee (Apis mellifera) flying towards Himalayan balsam (Impatiens glandulifera) Surrey, England, August.

Adrian Davies / Honey bee (Apis mellifera) leaving flower of Himalayan balsam (Impatiens glandulifera) with pollen on its back and wings, Surrey, UK, August

Nick Upton / Honey bee (Apis mellifera) with very tatty, worn wings and dusted with pollen, visiting a Himalayan balsam (Impatients glandulifera) flower. Wiltshire pastureland, UK, September

Nick Upton / Honey bee (Apis mellifera) combing pollen from its wings after visiting a Himalayan balsam (Impatiens glandulifera) flower. Wiltshire pastureland, UK, October

Nick Upton / Honey bee (Apis mellifera) combing pollen from the hairs on its thorax after visiting a Himalayan balsam (Impatiens glandulifera) flower. Wiltshire pastureland, UK, September

Nick Upton / Honey bee (Apis mellifera) heavily dusted with pollen, visiting a Himalayan balsam (Impatiens glandulifera) flower. Wiltshire pastureland, UK, September

Nick Upton / Honey bee (Apis mellifera) heavily dusted with pollen, taking off from Himalayan balsam (Impatiens glandulifera) flower. Wiltshire pastureland, UK, September

Nick Upton / Honey bee (Apis mellifera) combing pollen from its antennae after visiting a Himalayan balsam (Impatiens glandulifera) flower. Wiltshire pastureland, UK, October

Terry Whittaker / Honey bee (Apis mellifera) collecting pollen from Himalayan balsam (Impatiens glandulifera). River Tame floodplain, Reddish Vale, Greater Manchester, England, UK. August.