Alfken's Mini-miner vs squirrel’s tail hydroid

Andrena alfkenella compared with Sertularia argentea

Key Differences

• Alfken's Mini-miner is Near Threatened while squirrel’s tail hydroid is Not Evaluated.

Taxonomic Classification

Rank	Alfken's Mini-miner	squirrel’s tail hydroid
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Cnidaria (Cnidarians)
Class	Insecta (Insects)	Hydrozoa (Hydrozoa)
Order	Hymenoptera (Ants, Bees & Wasps)	Leptothecata (Leptothecata)
Family	Andrenidae	Sertulariidae
Genus	Andrena	Sertularia
Species	Andrena alfkenella	Sertularia argentea

Evolutionary Relationship

Alfken's Mini-miner and squirrel’s tail hydroid share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Alfken's Mini-miner

NT — Near Threatened

squirrel’s tail hydroid

NE — Not Evaluated

Physical Characteristics

Attribute	Alfken's Mini-miner	squirrel’s tail hydroid
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.

squirrel’s tail hydroid

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

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.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden