Alfken's Mini-miner vs

Andrena alfkenella compared with Cylindrotheca closterium

Key Differences

Alfken's Mini-miner is Near Threatened while is Not Evaluated.

Taxonomic Classification

Rank	Alfken's Mini-miner
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Arthropoda (Arthropods)	Ochrophyta (Ochrophyta)
Class	Insecta (Insects)	Bacillariophyceae (Bacillariophyceae)
Order	Hymenoptera (Ants, Bees & Wasps)	Bacillariales (Bacillariales)
Family	Andrenidae	Bacillariaceae
Genus	Andrena	Cylindrotheca
Species	Andrena alfkenella	Cylindrotheca closterium

Conservation Status

Alfken's Mini-miner

NT — Near Threatened

NE — Not Evaluated

Physical Characteristics

Attribute	Alfken's Mini-miner
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alfken's Mini-miner

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Luxembourg, Norway, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Habitat

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

Range

Distributed across Brazil, Norway, Oman, Sweden, and Taiwan.

Alfken's Mini-miner

The Alfken's Mini-miner (Andrena alfkenella) is a species in the genus Andrena. It is currently classified as Near Threatened on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Cylindrotheca closterium is an elongated, needle-shaped marine and brackish water diatom common in coastal sediments, intertidal mudflats, and benthic biofilms worldwide. Its spindle-shaped silica frustule tapers to fine points at both ends. This species is an important primary producer in estuarine and shallow coastal ecosystems and can form dense mats on sediment surfaces.