Bombus lucorum, the white-tailed bumblebee, is a species of bumblebee, widespread and common throughout Europe; This on is sitting on an allium flower;
Compared to other bumblebee species, the individuals of B. lucorum have shorter tongues, and this characteristic enable them to rob nectar. The worker bee uses the horny sheath around its tongue to make a hole through the flower, reaching the nectar without entering the flower. Therefore, the worker bee does not come in contact with the pollen while getting the nectar.