Fly Agaric vs Wang's Crab

Amanita muscaria compared with Geothelphusa wangi

Key Differences

• Fly Agaric is Least Concern while Wang's Crab is Vulnerable.

Taxonomic Classification

Rank	Fly Agaric	Wang's Crab
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Arthropoda (Arthropods)
Class	Agaricomycetes (Mushrooms)	Malacostraca (Crustaceans)
Order	Agaricales (Gilled Mushrooms)	Decapoda (Decapoda)
Family	Agaricaceae (Agarics)	Potamidae
Genus	Amanita (Amanitas)	Geothelphusa
Species	Amanita muscaria	Geothelphusa wangi

Conservation Status

Fly Agaric

LC — Least Concern

Trend: Stable →

Wang's Crab

VU — Vulnerable

Physical Characteristics

Attribute	Fly Agaric	Wang's Crab
Diet	Decomposer	—
Average Lifespan	1 years	—
Average Length	20 cm	—
Average Weight	100 g	—

Habitat & Geographic Range

Fly Agaric

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Widely distributed across Europe (4 countries), North America (United States), Oceania and the Pacific (New Zealand), and South America (Brazil, Chile, Colombia).

Wang's Crab

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Found in Taiwan. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Fly Agaric

Among the most iconic and recognizable fungi on Earth, fly agaric mushrooms display striking red caps with white flecked warts across boreal forests of the Northern Hemisphere. Despite their fairy-tale appearance, they contain potent psychoactive compounds including muscimol and ibotenic acid and are moderately toxic. They form critical mycorrhizal symbioses with birch, pine, and spruce trees, exchanging mineral nutrients for carbon and playing essential roles in boreal forest nutrient cycling.