Black Vine Weevil vs Common Yellow Conch

Otiorhynchus sulcatus compared with Agapeta hamana

Taxonomic Classification

Rank	Black Vine Weevil	Common Yellow Conch
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class same	Insecta (Insects)	Insecta (Insects)
Order	Coleoptera (Beetles)	Lepidoptera (Butterflies & Moths)
Family	Curculionidae	Tortricidae
Genus	Otiorhynchus	Agapeta
Species	Otiorhynchus sulcatus	Agapeta hamana

Evolutionary Relationship

Black Vine Weevil and Common Yellow Conch share a common ancestor at the Class level: Insecta. (Insects)

Conservation Status

Black Vine Weevil

LC — Least Concern

Common Yellow Conch

LC — Least Concern

Physical Characteristics

Attribute	Black Vine Weevil	Common Yellow Conch
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Vine Weevil

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and temperate grasslands and steppes, among 4 distinct biome types within the Palearctic biogeographic realm.

Range

Widely distributed across Asia (Azerbaijan, Japan, Turkey), Europe (32 countries), North America (Canada, United States), and South America (Argentina, Chile).

Common Yellow Conch

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Black Vine Weevil

The Black Vine Weevil (Otiorhynchus sulcatus) is a species in the genus Otiorhynchus. It is currently classified as Least Concern on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and temperate grasslands and steppes, among 4 distinct biome types within the Palearctic biogeographic realm, found across Albania, Argentina, Austria, Azerbaijan, Belarus, and more.

Common Yellow Conch

<em>Agapeta hamana</em>, the common yellow conch moth, is a small moth in the family Tortricidae. It is widely distributed across Europe and central Asia, ranging from Britain and Scandinavia eastward through much of the Palearctic region. The species inhabits dry grasslands, heathlands, chalk downlands, and scrubby habitats where its larval host plants are found. Adult moths display distinctive pale yellow to golden-yellow forewings with irregular brown or reddish-brown markings near the wingtip, forming a pattern that resembles the shell of a conch, lending the species its common name. The wingspan typically measures around 15–22 mm. Biological traits such as average adult lifespan, precise body weight, and detailed population data remain poorly documented in consolidated scientific literature. Larvae feed internally on the roots of thistles and knapweeds, particularly <em>Centaurea</em> and <em>Cirsium</em> species. Adults fly from June to August and are frequently attracted to light. <em>Agapeta hamana</em> has been investigated as a potential biological control agent for invasive knapweed species in North America, where it has been introduced experimentally. The species is assessed as Least Concern given its broad distribution and stable habitat associations.

Shared Countries

Both species can be found in 4 countries:

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