Cliff Mining Bee vs

Andrena thoracica compared with Comatricha pulchella

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 pulchella

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Brazil).

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 pulchella</em> is a myxomycete in the class Myxomycetes, order Stemonitidales, belonging to the genus <em>Comatricha</em>. The species name, meaning beautiful in Latin, may allude to the delicate aesthetic of its sporangia, which are characteristic of the genus in having a stalked structure with an internal filamentous capillitium. <em>C. pulchella</em> occurs on rotting wood and plant litter in moist, forested environments. Like other species in the genus, it progresses through a motile plasmodial feeding stage before developing into sporangia that release spores adapted for wind dispersal. The species contributes to decomposition within forest ecosystems by consuming bacteria and other microorganisms during the plasmodial phase. No geographic range data are specified in the current record. Quantitative biological metrics are not applicable to this organism, and it has not been evaluated by the IUCN.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden