kustraggvivel
CR

kustraggvivel

Rhinusa pilosa

Unknown

Photo: Photo: (c) Blake Weis, some rights reserved (CC BY-NC), uploaded by Blake Weis

Overview

Rhinusa pilosa is a species of true weevil in the family of beetles known as Curculionidae. It is found exclusively on Linaria vulgaris Mill. (Plantaginaceae), also known as common or yellow toadflax where it creates a gall on the plant's stem, and was found originally in Serbia. R. pilosa has been introduced in the United States and Canada as an biocontrol agent to control L. vulgaris.

Rhinusa pilosa faces severe population declines due to habitat destruction from agricultural expansion and urbanization across its range. The species' specialized feeding requirements on specific host plants make it particularly vulnerable to environmental changes, while its limited dispersal ability restricts recolonization of degraded areas.

Threat summary

Habitat

This weevil species inhabits grasslands, meadows, and forest edges where its host plants in the Plantaginaceae family are abundant. It is typically found in areas with well-drained soils and moderate moisture levels, often in semi-natural habitats adjacent to agricultural landscapes.

Other threatened species in Curculionidae

strandsenapvivelCR

strandsenapvivel

Ceutorhynchus scapularis

Unknown
VU

lusernvivel

Sitona humeralis

Unknown
VU

Bradybatus kellneri

Unknown
VU

Pygmy Elm Bark Beetle

Scolytus pygmaeus

Unknown

Frequently asked questions

Why is kustraggvivel classified as Critically Endangered?
kustraggvivel is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Rhinusa pilosa faces severe population declines due to habitat destruction from agricultural expansion and urbanization across its range. The species' specialized feeding requirements on specific host plants make it particularly vulnerable to environmental changes, while its limited dispersal ability restricts recolonization of degraded areas.
Where does kustraggvivel live?
kustraggvivel occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to kustraggvivel?
The main threats to kustraggvivel are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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