Definition
Bombus pascuorum is a species of bumblebee in the family Apidae. It is commonly referred to as the common carder bee and is native to much of Europe and parts of western Asia.
Overview
- Taxonomy: Kingdom Animalia; Phylum Arthropoda; Class Insecta; Order Hymenoptera; Family Apidae; Genus Bombus; Subgenus Thoracobombus; Species B. pascuorum.
- Distribution: Widely distributed across temperate Europe, including the United Kingdom, Scandinavia, the Iberian Peninsula, the Balkans, and extending into western Siberia and the Caucasus region.
- Habitat: Occupies a broad range of open habitats such as meadows, grasslands, heaths, agricultural fields, gardens, and woodland edges. It prefers areas with abundant flowering plants.
- Life cycle: Like other bumblebees, B. pascuorum is annual. Queens emerge from hibernation in early spring, establish nests underground or in shallow surface cavities, and produce a small colony of workers (typically 30–70 individuals). The colony peaks in midsummer, after which new queens and males are produced. Mated queens hibernate through winter to start the cycle anew.
- Ecological role: An important generalist pollinator, visiting a variety of plant families (e.g., Fabaceae, Asteraceae, Rosaceae). Its foraging activity contributes to the reproductive success of both wild flora and cultivated crops.
Etymology/Origin
- Genus name: Bombus derives from the Latin “bombus,” meaning “buzzing” or “a large bee,” which in turn originates from the Greek “βόμβος” (bómbos).
- Species epithet: pascuorum is Latin for “of the pastures” (genitive plural of pascuum), reflecting the species’ frequent occurrence in grazing lands and meadow habitats.
Characteristics
- Size: Workers range from 12–16 mm in length; queens are larger, reaching up to 20 mm. Males are similar in size to workers.
- Coloration: The thorax is predominantly black with a distinctive yellow or orange dorsal band. The abdomen shows a characteristic pattern of alternating black and yellow bands; the terminal abdominal segments are usually black. This pattern distinguishes it from similar species such as Bombus lapidarius (red-tailed bumblebee).
- Morphology: Possesses a robust, fuzzy body adapted for pollen collection. The corbiculae (pollen baskets) on the hind legs are well‑developed in workers and queens.
- Behavior: Workers exhibit “carding” behavior, collecting plant fibers to line the nest, a trait that contributes to the common name “carder bee.” The species is active from early spring (April) to late summer (August) depending on latitude.
- Reproduction: Queens are singly mated; colonies are monogynous. Males typically die shortly after mating, while newly fertilized queens enter diapause.
Related Topics
- Bumblebees (genus Bombus) – overview of the diversity, ecology, and conservation of bumblebee species.
- Pollination biology – the role of bumblebees as pollinators in natural and agricultural ecosystems.
- Decline of pollinators – factors affecting bumblebee populations, including habitat loss, pesticide exposure, and climate change.
- Habitat management – practices such as meadow restoration and the planting of nectar‑rich flora to support B. pascuorum and other pollinators.
Bombus pascuorum is a well‑documented bumblebee species recognized by entomologists and conservation biologists for its widespread presence across European landscapes and its contribution to pollination services.