Alfken's Mini-miner vs Ray's Knotgrass

Andrena alfkenella compared with Polygonum oxyspermum

Key Differences

Alfken's Mini-miner is Near Threatened while Ray's Knotgrass is Endangered.

Taxonomic Classification

Rank	Alfken's Mini-miner	Ray's Knotgrass
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Magnoliopsida (Dicots)
Order	Hymenoptera (Ants, Bees & Wasps)	Caryophyllales (Caryophyllales)
Family	Andrenidae	Polygonaceae
Genus	Andrena	Polygonum
Species	Andrena alfkenella	Polygonum oxyspermum

Conservation Status

Alfken's Mini-miner

NT — Near Threatened

Ray's Knotgrass

EN — Endangered

Physical Characteristics

Attribute	Alfken's Mini-miner	Ray's Knotgrass
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.

Ray's Knotgrass

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Denmark, Norway, and Sweden. Currently classified as 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.