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Buff-tailed bumblebee

Bombus terrestris

Conservation status IUCN: Least concern· LC
Buff-tailed bumblebee (Bombus terrestris)
Photograph from Wikimedia Commons · Wikipedia article (it)

Where the name comes from

Bombus is from the Greek bómbos, “buzzing, booming”, from the deep sound of its flight; terrestris is Latin, “of the earth”, because it nests in the ground, often in old rodent burrows. The Italian bombo keeps the same onomatopoeia. It is one of the most important pollinators of temperate climates.

Facts

Group
Insects · Insecta
Order
Bees, wasps and ants
Habitat
Meadows, gardens, farmland, woodland edges
Range
Europe, North Africa, western Asia; introduced elsewhere
Size
2–2.5 cm for the queen
Diet
Nectar and pollen
Lifespan
Workers a few weeks; the queen a year

Characteristics

  • 01

    It flies in cold and grey weather, when honeybees stay in the hive: it shivers its muscles to warm up.

  • 02

    It practises buzz pollination: it shakes the flower at a frequency that releases the pollen.

  • 03

    It lives in small annual colonies; only the queen overwinters and founds a new one.

What sets it apart

The bumblebee shakes flowers to make them “sing”: some flowers, the tomato among them, hold their pollen inside closed anthers that open only when vibrated at a particular frequency. The bumblebee grips them and vibrates its flight muscles, giving out a high buzz — buzz pollination — that shoots the pollen out. Honeybees cannot do it. That is why the buff-tailed bumblebee is reared and released into tomato glasshouses all over the world: a pollinator hired for its voice.

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