Alfken's Mini-miner vs Cramp Balls

Andrena alfkenella compared with Daldinia concentrica

Key Differences

Alfken's Mini-miner is Near Threatened while Cramp Balls is Vulnerable.

Taxonomic Classification

Rank	Alfken's Mini-miner	Cramp Balls
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Arthropoda (Arthropods)	Ascomycota (Sac Fungi)
Class	Insecta (Insects)	Sordariomycetes (Sordariomycetes)
Order	Hymenoptera (Ants, Bees & Wasps)	Xylariales (Xylariales)
Family	Andrenidae	Hypoxylaceae
Genus	Andrena	Daldinia
Species	Andrena alfkenella	Daldinia concentrica

Conservation Status

Alfken's Mini-miner

NT — Near Threatened

Cramp Balls

VU — Vulnerable

Physical Characteristics

Attribute	Alfken's Mini-miner	Cramp Balls
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.

Cramp Balls

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Brazil). Currently classified as Vulnerable 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.