European Wool Carder Bee
Anthidium manicatum
The European Wool Carder Bee is a solitary bee species known for its striking yellow and black markings resembling a wasp. Unusually for bees, males are significantly larger than females and exhibit highly territorial behavior, defending floral patches from other insects. Females collect plant down or 'wool' from fuzzy plants like Lamb's Ear to line their nests in pre-existing cavities.
Details
Identification
Interrupted yellow bands on the abdomen, males with three strong terminal spines on the abdomen, females with a white-grey ventral pollen-collecting brush.
Social behavior
Solitary living; males are extremely territorial and attack other insects that enter their territory.
Diet
Polylectic species with a strong preference for Lamiaceae (mint family), Fabaceae (pea family), and Plantaginaceae (plantain family).
Spawning substrate
Cavities in wood, wall crevices, plant stems, or insect hotels; lined with plant wool.
Overwintering
Overwintering as a resting larva (prepupa) inside the cocoon within the nest.
Ecology
Ecological role
Important pollinator of wild and garden plants; males regulate insect density at forage sources through territorial behavior.
Natural predators
Birds, spiders, robber flies, and the cuckoo bee Stelis punctulatissima.
Competitor species
Other wild bee species and honeybees competing for nectar and pollen.
Ecosystem service
Ensuring the pollination of diverse plant species in urban and semi-natural areas.
Threats
Lack of suitable nesting sites and loss of specific pollen sources due to intensive garden maintenance.
Scientific profile
Profile
Distinguishing features
Males are unusually significantly larger than females. A characteristic feature is the 'trident' at the end of the male abdomen (three to five spine-like processes on the 7th tergite). Females possess a yellowish abdominal scopa for pollen transport and collect plant hairs (wool) for nest construction.
Habitat
Areas close to settlements such as gardens and parks, but also sunny forest edges, railway embankments, dry slopes, and ruderal areas.
Protection & threats
Main threats
Loss of nesting sites due to excessive tidiness in gardens (removal of dead wood, sealing of walls) and lack of specific food plants due to monotonous green spaces.
Population trend
Stable; the species is considered widespread in Germany and often common in residential areas.
Conservation measures
Planting Lamb's ear (Stachys byzantina) and native Lamiaceae; preservation of dead wood and open wall crevices; providing nesting aids with hole diameters of 8–10 mm.