VU

Tychius crassirostris

Unknown

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Tychius crassirostris faces significant pressure from agricultural intensification and habitat modification across its European range. The species' dependence on specific host plants makes it particularly vulnerable to changes in land management practices, including increased pesticide use and conversion of semi-natural grasslands to intensive agriculture. Climate change may further stress populations by altering the distribution and phenology of its preferred plant hosts.

Threat summary

Habitat

This weevil species inhabits semi-natural grasslands, meadows, and field margins where its host plants occur. It shows a preference for areas with diverse herbaceous vegetation and is often associated with traditional extensive farming systems.

Other threatened species in Curculionidae

VU

Carphoborus rossicus

Unknown
Limnobaris t-albumVU

Limnobaris t-album

Unknown
VU

Dorytomus hirtipennis

Unknown
Brachyderes lusitanicusVU

Brachyderes lusitanicus

Unknown

Threatened in Austria

VU

Lepiota echinella

Unknown
EN

Lyophyllum deliberatum

Unknown
VU

Large Tree-chernes

Dendrochernes cyrneus

Unknown
EN

Pipizella nigriana

Unknown

Frequently asked questions

Why is Tychius crassirostris classified as Vulnerable?
Tychius crassirostris is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Tychius crassirostris faces significant pressure from agricultural intensification and habitat modification across its European range. The species' dependence on specific host plants makes it particularly vulnerable to changes in land management practices, including increased pesticide use and conversion of semi-natural grasslands to intensive agriculture. Climate change may further stress populations by altering the distribution and phenology of its preferred plant hosts.
Where does Tychius crassirostris live?
Tychius crassirostris occurs in Austria, Bulgaria, China, Czechia, Denmark, and France (plus 10 other countries). Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Tychius crassirostris?
The main threats to Tychius crassirostris 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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