archers dart vs Coastal Silver-stiletto

Agrotis vestigialis compared with Acrosathe annulata

Taxonomic Classification

Rank	archers dart	Coastal Silver-stiletto
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Arthropoda (động vật Chân khớp)	Arthropoda (động vật Chân khớp)
Class same	Insecta (côn trùng)	Insecta (côn trùng)
Order	Lepidoptera (bộ Cánh vảy)	Diptera (Ruồi)
Family	Noctuidae	Therevidae
Genus	Agrotis	Acrosathe
Species	Agrotis vestigialis	Acrosathe annulata

Evolutionary Relationship

archers dart and Coastal Silver-stiletto share a common ancestor at the Class level: Insecta. (côn trùng)

Conservation Status

archers dart

LC — Least Concern

Coastal Silver-stiletto

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

archers dart

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, 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.

archers dart

The Archers dart (Agrotis vestigialis) is a species in the genus Agrotis. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

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.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden