Coastal Silver-stiletto vs Common Lesser Toad

Acrosathe annulata compared with Rhinella granulosa

Taxonomic Classification

Rank	Coastal Silver-stiletto	Common Lesser Toad
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Amphibia (Amphibians)
Order	Diptera (Diptera)	Anura (Frogs & Toads)
Family	Therevidae	Bufonidae
Genus	Acrosathe	Rhinella
Species	Acrosathe annulata	Rhinella granulosa

Evolutionary Relationship

Coastal Silver-stiletto and Common Lesser Toad share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Coastal Silver-stiletto

LC — Least Concern

Common Lesser Toad

LC — Least Concern

Physical Characteristics

Attribute	Coastal Silver-stiletto	Common Lesser Toad
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Coastal Silver-stiletto

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Common Lesser Toad

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Colombia.

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.

Common Lesser Toad

<em>Rhinella granulosa</em>, commonly known as the common lesser toad, is a small amphibian belonging to the family Bufonidae. This species is native to Colombia and is typically found in freshwater ecosystems, moist tropical forests, and wetland habitats. It inhabits lowland and foothill environments where moisture is consistently available throughout the year. The common lesser toad is classified as Least Concern on the IUCN Red List, indicating that its populations are currently stable and not under significant threat. Like other members of the genus Rhinella, it is typically insectivorous, feeding on small invertebrates found in its humid forest floor environment. The species plays an important ecological role as both predator of insects and prey for larger animals within its native Colombian range. Its granular skin texture, referenced in its scientific name, provides some protection from predators. Population trends remain stable, and the species benefits from the relative abundance of suitable freshwater and forest habitats across its range in Colombia.