Alfken's Mini-miner vs limestone fern

Andrena alfkenella compared with Gymnocarpium robertianum

Key Differences

Alfken's Mini-miner is Near Threatened while limestone fern is Critically Endangered.

Taxonomic Classification

Rank	Alfken's Mini-miner	limestone fern
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Tracheophyta
Class	Insecta (Insects)	Polypodiopsida (Polypodiopsida)
Order	Hymenoptera (Ants, Bees & Wasps)	Polypodiales (Polypodiales)
Family	Andrenidae	Cystopteridaceae
Genus	Andrena	Gymnocarpium
Species	Andrena alfkenella	Gymnocarpium robertianum

Conservation Status

Alfken's Mini-miner

NT — Near Threatened

limestone fern

CR — Critically Endangered

Physical Characteristics

Attribute	Alfken's Mini-miner	limestone fern
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.

limestone fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Distributed across Belgium, Canada, Norway, and Sweden. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.