klopjes

**Klopjes**

Klopjes, also known as bumblebees or bumblebee wasps, are small, robust insects belonging to the genus *Bombus*. They are part of the Apidae family, which also includes honeybees. These bees are easily recognizable by their fuzzy, hairy bodies and distinctive black and yellow or brown stripes. Unlike honeybees, klopjes are solitary or social in small colonies, typically ranging from a few dozen to a few hundred individuals.

Klopjes play a crucial role in pollination, contributing significantly to agricultural and natural ecosystems. Their ability to fly in poor weather conditions, unlike many other bees, makes them particularly effective pollinators for crops like tomatoes, blueberries, and squash. They are also known for their unique foraging behavior, often collecting pollen in bundles called "corbiculae" on their hind legs.

The term "klopjes" originates from Dutch, where it translates to "bumblebees." This name reflects their characteristic buzzing sound, which they produce by vibrating their flight muscles. The sound is often described as a low, rhythmic humming noise. Klopjes are active during the day and can be found in a variety of habitats, including meadows, gardens, and forests.

There are over 250 species of klopjes worldwide, with many native to Europe, North America, and parts of Asia. Some species, such as the common bumblebee (*Bombus terrestris*), are widely recognized and often kept in beekeeping for their pollination services. Conservation efforts are ongoing to protect these insects, as some species face threats from habitat loss, pesticides, and climate change.