Blackthorn Mining Bee vs Comandra Blister Rust

Andrena varians compared with Cronartium comandrae

Key Differences

Blackthorn Mining Bee is Least Concern while Comandra Blister Rust is Not Evaluated.

Taxonomic Classification

Rank	Blackthorn Mining Bee	Comandra Blister Rust
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Arthropoda (Arthropods)	Basidiomycota (Club Fungi)
Class	Insecta (Insects)	Pucciniomycetes (Pucciniomycetes)
Order	Hymenoptera (Ants, Bees & Wasps)	Pucciniales (Pucciniales)
Family	Andrenidae	Cronartiaceae
Genus	Andrena	Cronartium
Species	Andrena varians	Cronartium comandrae

Conservation Status

Blackthorn Mining Bee

LC — Least Concern

Comandra Blister Rust

NE — Not Evaluated

Physical Characteristics

Attribute	Blackthorn Mining Bee	Comandra Blister Rust
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blackthorn Mining Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Luxembourg, Norway, and Sweden.

Comandra Blister Rust

Habitat

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

Range

Distributed across Norway and United States.

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.

Comandra Blister Rust

<em>Cronartium comandrae</em>, known as comandra blister rust, is a parasitic fungal pathogen in the family Cronartiaceae that alternates between two unrelated host plants to complete its life cycle. The fungus infects coniferous trees, particularly pine species, during one phase of its development, causing characteristic blister-like galls on branches and stems that can girdle and kill infected tissues. The alternate host is typically comandra (<em>Comandra umbellata</em>), a parasitic flowering plant. On pine hosts, the rust forms orange or yellow spore masses during the aecial stage, releasing spores that infect comandra plants, where urediniospores and teliospores are subsequently produced. The species is distributed wherever its dual hosts co-occur across North America and parts of Eurasia. It can cause economically significant damage to pine plantations and natural forest stands. No quantitative biological metrics are recorded for this species.