Bitter Scalewort vs Blackthorn Mining Bee

Porella arboris-vitae compared with Andrena varians

Key Differences

• Bitter Scalewort is Vulnerable while Blackthorn Mining Bee is Least Concern.

Taxonomic Classification

Rank	Bitter Scalewort	Blackthorn Mining Bee
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Marchantiophyta (liverwort)	Arthropoda (Arthropods)
Class	Jungermanniopsida (Jungermanniopsida)	Insecta (Insects)
Order	Porellales (Porellales)	Hymenoptera (Ants, Bees & Wasps)
Family	Porellaceae	Andrenidae
Genus	Porella	Andrena
Species	Porella arboris-vitae	Andrena varians

Conservation Status

Bitter Scalewort

VU — Vulnerable

Blackthorn Mining Bee

LC — Least Concern

Physical Characteristics

Attribute	Bitter Scalewort	Blackthorn Mining Bee
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bitter Scalewort

Habitat

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

Range

Found across Asia (Taiwan) and Europe (5 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Blackthorn Mining Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Luxembourg, Norway, and Sweden.

Bitter Scalewort

The Bitter Scalewort (Porella arboris-vitae) is a species in the genus Porella. It is currently classified as Vulnerable on the IUCN Red List. Native to Asia and Europe, inhabiting ecosystems characteristic of the region.

Blackthorn Mining Bee

The Blackthorn Mining Bee (Andrena varians) is a species in the genus Andrena. It is currently classified as Least Concern on the IUCN Red List. Distributed across Denmark, Luxembourg, Norway, and Sweden.

Shared Countries

Both species can be found in 4 countries:

🇩🇰 Denmark 🇱🇺 Luxembourg 🇳🇴 Norway 🇸🇪 Sweden