Blushing Webcap vs Coastal Silver-stiletto

Cortinarius cyanites compared with Acrosathe annulata

Key Differences

Blushing Webcap is Data Deficient while Coastal Silver-stiletto is Least Concern.

Taxonomic Classification

Rank	Blushing Webcap	Coastal Silver-stiletto
Kingdom	Fungi (真菌界)	Animalia (动物界)
Phylum	Basidiomycota (担子菌门)	Arthropoda (节肢动物门)
Class	Agaricomycetes (傘菌綱)	Insecta (昆蟲綱)
Order	Agaricales (伞菌目)	Diptera (雙翅目)
Family	Cortinariaceae	Therevidae
Genus	Cortinarius	Acrosathe
Species	Cortinarius cyanites	Acrosathe annulata

Conservation Status

Blushing Webcap

DD — Data Deficient

Coastal Silver-stiletto

LC — Least Concern

Physical Characteristics

Attribute	Blushing Webcap	Coastal Silver-stiletto
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blushing Webcap

Habitat

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

Range

Distributed across Denmark, Norway, and Sweden.

Coastal Silver-stiletto

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Blushing Webcap

The Blushing Webcap (Cortinarius cyanites) is a species in the genus Cortinarius. It is currently classified as Data Deficient on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

Coastal Silver-stiletto

Coastal silver stiletto (Acrosathe annulata) is a slender robber fly in the family Therevidae, native to northwestern Europe, including the United Kingdom, France, the Netherlands, Belgium, and Scandinavia. Adults are found on coastal sand dunes and sandy heathland, where they perch on bare sand to ambush small flying insects. Stiletto flies in the family Therevidae are characterised by a slender body, long pointed abdomen, and predatory habits; adults prey on a variety of small dipterans and other flying insects during warm, sunny periods. Larvae develop in sandy soil, where they are also predatory, feeding on other invertebrate larvae. Acrosathe annulata is a habitat specialist restricted to open, sandy coastal habitats with sparse vegetation—environments that have declined substantially across northwestern Europe due to dune stabilisation, recreational disturbance, and the cessation of traditional dune management. The IUCN lists it as Least Concern, though regional conservation bodies in the United Kingdom have flagged population declines. It is considered an indicator of high-quality coastal sand dune habitats and is monitored through national invertebrate surveys.