Brown eagle-ray vs Cliff Mining Bee

Aetomylaeus milvus compared with Andrena thoracica

Key Differences

• Brown eagle-ray is Endangered while Cliff Mining Bee is Extinct.

Taxonomic Classification

Rank	Brown eagle-ray	Cliff Mining Bee
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum	Chordata (хордовые)	Arthropoda (членистоногие)
Class	Elasmobranchii	Insecta (насекомые)
Order	Myliobatiformes (хвостоколообразные)	Hymenoptera (перепончатокрылые)
Family	Myliobatidae	Andrenidae
Genus	Aetomylaeus	Andrena
Species	Aetomylaeus milvus	Andrena thoracica

Evolutionary Relationship

Brown eagle-ray and Cliff Mining Bee share a common ancestor at the Kingdom level: Animalia. (животные)

Conservation Status

Brown eagle-ray

EN — Endangered

Cliff Mining Bee

EX — Extinct

Physical Characteristics

Attribute	Brown eagle-ray	Cliff Mining Bee
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown eagle-ray

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Cliff Mining Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Luxembourg, Norway, and Sweden.

Brown eagle-ray

The Brown Eagle-ray (Aetomylaeus milvus) is a species in the genus Aetomylaeus. It is currently classified as Endangered on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.

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.