Adder’S-Mouth vs Buff-tailed Mining Bee

Malaxis bayardii compared with Andrena humilis

Key Differences

• Adder’S-Mouth is Critically Endangered while Buff-tailed Mining Bee is Extinct.

Taxonomic Classification

Rank	Adder’S-Mouth	Buff-tailed Mining Bee
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Arthropoda (Arthropods)
Class	Liliopsida (Monocots)	Insecta (Insects)
Order	Asparagales (Asparagales)	Hymenoptera (Ants, Bees & Wasps)
Family	Orchidaceae	Andrenidae
Genus	Malaxis	Andrena
Species	Malaxis bayardii	Andrena humilis

Conservation Status

Adder’S-Mouth

CR — Critically Endangered

Buff-tailed Mining Bee

EX — Extinct

Physical Characteristics

Attribute	Adder’S-Mouth	Buff-tailed Mining Bee
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Adder’S-Mouth

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Distributed across Canada and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Buff-tailed Mining Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

Adder’S-Mouth

The Adder’S-Mouth (Malaxis bayardii) is a species in the genus Malaxis. It is currently classified as Critically Endangered on the IUCN Red List. This species inhabits Typically found in grasslands, wetlands, forests, and cultivated landscapes, found across Canada and United States.

Buff-tailed Mining Bee

The Buff-Tailed Mining Bee (Andrena humilis) is a species in the genus Andrena. It is currently classified as Extinct on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.