Insects

Violet carpenter bee

Xylocopa violacea

The violet carpenter bee is one of Europe's largest bees, with a black body and iridescent violet wings, which bores its nests into dead wood.

Characteristics

Scientific nameXylocopa violacea
LifespanCirca un anno (adulti svernanti)
SizeLength 2–3 cm
Energy3/5

Temperament

Solitary, peaceful, with a noisy flight

Diet

Flower nectar and pollen

The black-and-violet jewel of gardens

The violet carpenter bee is one of Europe's largest bees, of imposing appearance: its body is black, stout and robust, and its large wings are an iridescent black-violet that catches the light with bluish glints. For its size and noisy flight it is often mistaken for a bumblebee or even a hornet, but it is entirely peaceful. The deep hum it produces is audible from a distance.

Habitat and range

It is widespread in central and southern Europe and in Asia. It frequents gardens, orchards, clearings and open sunny habitats, especially where dead wood is available for nesting. It loves warm climates and in recent decades has spread farther north.

Behaviour and nesting

Its name comes from the female's habit of boring tunnels into dead wood — dry branches, beams, posts, logs — where she makes the cells for her offspring. It is not a social insect like the honeybee: the females nest solitarily. It is an important pollinator, able to perform "buzz pollination" by shaking flowers to release the pollen. The adults overwinter and reappear in spring, among the first pollinators on the wing.

Notable facts

Despite its imposing look, the carpenter bee is very calm and stings only if handled or crushed. It bores dead wood and generally does not significantly damage structural timber. It was chosen as Germany's "wild bee of the year 2024".

Conservation

The species is not considered threatened and is expanding. It benefits from the availability of dead wood and flowery habitats; keeping dry branches and old trees in gardens encourages its presence.

Pros

  • Among Europe's largest bees, spectacular
  • Important pollinator, including buzz pollination
  • Peaceful and useful in the garden

Cons

  • Can bore tunnels into dead wood
  • Often mistaken for a hornet and wrongly feared

FAQ

Is the carpenter bee dangerous?
No, it is very peaceful. Despite its imposing look and deep hum, it stings only if handled or crushed. It is often mistaken for a black hornet, but it is entirely harmless.
Why is it called a 'carpenter' bee?
Because the female bores tunnels into dead wood — dry branches, beams, posts — to build the cells in which she lays her eggs and rears her offspring.
Is it useful to pollinators?
Yes, greatly. It is an important pollinator and can perform 'buzz pollination', shaking flowers to release the pollen. It appears early in spring, among the first on the wing.
Does it damage houses?
It bores dead wood, but usually does not significantly damage structural timber. Keeping dry branches and logs in the garden offers it natural nesting sites.

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