Cliff Mason Bee vs Wall Mason Bee

Osmia xanthomelana compared with Osmia parietina

Key Differences

• Cliff Mason Bee is Not Evaluated while Wall Mason Bee is Least Concern.

Taxonomic Classification

Rank	Cliff Mason Bee	Wall Mason Bee
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum same	Arthropoda (Eklem bacaklılar)	Arthropoda (Eklem bacaklılar)
Class same	Insecta (böcek)	Insecta (böcek)
Order same	Hymenoptera (Zar kanatlılar)	Hymenoptera (Zar kanatlılar)
Family same	Megachilidae	Megachilidae
Genus same	Osmia	Osmia
Species	Osmia xanthomelana	Osmia parietina

Evolutionary Relationship

Cliff Mason Bee and Wall Mason Bee share a common ancestor at the Genus level: Osmia.

Conservation Status

Cliff Mason Bee

NE — Not Evaluated

Wall Mason Bee

LC — Least Concern

Physical Characteristics

Attribute	Cliff Mason Bee	Wall Mason Bee
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cliff Mason Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Luxembourg, and Sweden.

Wall Mason Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

Cliff Mason Bee

The Cliff Mason Bee, Osmia species, is one of numerous solitary bees in the large genus Osmia, family Megachilidae, whose females construct individual brood cells from mud, clay, or resin in crevices on cliff faces, rock walls, and outcrops. Mason bees are important pollinators of wildflowers and orchard crops, collecting pollen and nectar to provision their nests. Cliff mason bees take advantage of natural crevices in rock faces as nesting sites, plastering cells of mud mixed with sand grains or plant material to subdivide the crevice into individual egg chambers. Each cell contains a pollen-nectar mass food provision and a single egg before being sealed with a mud plug. Males typically emerge first in spring, followed by females, and adults live for only several weeks, devoted entirely to mating and nesting. Cliff-nesting Osmia species are found in rocky habitats across the Holarctic region, from Europe through Asia and North America. The availability of suitable nesting sites on cliff faces, combined with the proximity of diverse wildflower resources, determines population density. Many solitary bee populations have declined in recent decades due to loss of nesting habitat and floral resources. Specific conservation status depends on the species intended.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇱🇺 Luxembourg 🇸🇪 Sweden