vs Coastal Silver-stiletto

Clitocybe augeana compared with Acrosathe annulata

Key Differences

is Not Evaluated while Coastal Silver-stiletto is Least Concern.

Taxonomic Classification

Rank		Coastal Silver-stiletto
Kingdom	Fungi (nấm)	Animalia (động vật)
Phylum	Basidiomycota (Club Fungi)	Arthropoda (động vật Chân khớp)
Class	Agaricomycetes (Mushrooms)	Insecta (côn trùng)
Order	Agaricales (Gilled Mushrooms)	Diptera (Ruồi)
Family	Tricholomataceae	Therevidae
Genus	Clitocybe	Acrosathe
Species	Clitocybe augeana	Acrosathe annulata

Conservation Status

NE — Not Evaluated

Coastal Silver-stiletto

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Habitat

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

Range

Distributed across Belgium, Norway, and Sweden.

Coastal Silver-stiletto

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Clitocybe augeana is a saprotrophic agaric fungus in the family Tricholomataceae native to Northern European forests and grasslands, with principal records from Scandinavia. It produces modest fruiting bodies with the genus-typical depressed to funnel-shaped cap, whitish to pale greyish coloration, and decurrent gills running down the stipe. Like many Clitocybe species, it emerges during autumn in habitats ranging from deciduous and mixed woodland floors to grassy clearings and forest margins, where it decomposes accumulated leaf litter and organic matter. The taxonomy of smaller, pale Clitocybe species has undergone considerable revision through molecular phylogenetic studies, with several species previously grouped together now recognized as distinct entities based on spore morphology, habitat preferences, and DNA sequence data. C. augeana contributes to the rich diversity of macrofungi documented in Scandinavian boreal and nemoral forests, ecosystems recognized for their exceptional fungal species richness and ecological importance in nutrient cycling processes.

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.