Cliff Mining Bee vs

Andrena thoracica compared with Comatricha ellae

Key Differences

• Cliff Mining Bee is Extinct while is Not Evaluated.

Taxonomic Classification

Rank	Cliff Mining Bee
Kingdom	Animalia (Animals)	Protozoa (protozoa)
Phylum	Arthropoda (Arthropods)	Mycetozoa
Class	Insecta (Insects)	Myxomycetes (Myxomycetes)
Order	Hymenoptera (Ants, Bees & Wasps)	Stemonitidales
Family	Andrenidae	Stemonitidaceae
Genus	Andrena	Comatricha
Species	Andrena thoracica	Comatricha ellae

Conservation Status

Cliff Mining Bee

EX — Extinct

NE — Not Evaluated

Physical Characteristics

Attribute	Cliff Mining Bee
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cliff Mining Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Luxembourg, Norway, and Sweden.

Habitat

Native to Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Brazil, Norway, and Sweden.

Cliff Mining Bee

The Cliff Mining Bee, Andrena species in the family Andrenidae, is a solitary ground-nesting bee that excavates tunnels in cliff faces, earthen banks, and compacted sandy or loamy soils, where the loose or friable substrates exposed in cliff profiles provide ideal nesting conditions. Mining bees in the genus Andrena are among the most species-rich solitary bee genera in the world, with hundreds of species across the Holarctic region, many narrowly specialized in their choice of pollen host plants. Female cliff mining bees construct vertical or angled burrows in cliff faces, with lateral cells off the main shaft, each containing a pollen ball and a single egg. Males are typically smaller and emerge before females to establish territories near nesting sites. Many Andrena species are oligolectic, collecting pollen from only a small number of plant species, making their populations sensitive to the availability of specific flowering plants in the landscape surrounding nesting areas. Cliff and bank nesting habitats provide well-drained, sun-warmed substrates essential for brood development. The loss of natural cliff faces and earthen banks to development, vegetation succession, and quarrying reduces available nesting habitat for cliff mining bees.

<em>Comatricha ellae</em> is a plasmodial slime mold in the class Myxomycetes, order Stemonitidales, belonging to the diverse genus <em>Comatricha</em>. Members of this genus are characterized by their stalked sporangia with a persistent stalk and an elaborate internal capillitial network that aids in spore dispersal. <em>C. ellae</em> has been recorded from Europe and South America, growing on decomposing wood, bark, and other plant debris in moist forest environments. The feeding stage of the organism is a multinucleate plasmodium that migrates across substrates and engulfs microorganisms and organic particles. Upon maturation, the plasmodium aggregates and differentiates into sporangia that release airborne spores. As with other myxomycetes, the species lacks conventional biological traits such as body length or mass, and no quantitative metrics are available. It is not evaluated on the IUCN Red List.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden