# Thistle head weevil (*Rhinocyllus conicus*)

Canonical page: https://creaturedata.com/animals/thistle-head-weevil  
Data as of: 2026-11-14

The thistle head weevil (Rhinocyllus conicus) is a species in the family Curculionidae, order Coleoptera. Recorded adults reach 5.5 mm in length.

## Quick facts

| Fact | Value |
|---|---|
| Weight | Not recorded |
| Length | 5.5 mm |
| Lifespan | Not recorded |
| Diet | Herbivore |
| Main food | flowers |
| Habitat | Not recorded |
| Young per litter or clutch | Not recorded |
| Conservation status | Not recorded |
| Countries on record | Not recorded |

## Introduced range

The Global Register of Introduced and Invasive Species lists it as introduced in 3 countries. Introduced: Latvia, Sweden, United States. Source: https://griis.org/ (CC BY 4.0).

## Classification

- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Coleoptera
- family: Curculionidae
- genus: Rhinocyllus
- species: *Rhinocyllus conicus* (Froelich, J.A., 1792)

Synonyms: *Bruchus punctatus*, *Curculio antiodontalgicus*, *Curculio cardui*, *Curculio conicus*, *Curculio thaumaturgus*, *Lixus antiodontalgicus*, *Lixus conicus*, *Lixus latirostris*, *Lixus morosus*, *Lixus odontalgicus*, *Lixus thaumaturgus*, *Rhinocyllus antiodontalgicus*, *Rhinocyllus odontalgicus*, *Rhinocyllus thaumaturgus*, *Rhinomacer antiodontalgicus*, *Rhynchaenus antiodontalgicus*, *Rhynchaenus latirostris*

## Common questions

### How big is the thistle head weevil?

An adult thistle head weevil measures 5.5 mm long, according to values recorded on Wikidata.

### What does the thistle head weevil eat?

Its recorded main food is flowers.

### Is the thistle head weevil an invasive species?

The Global Register of Introduced and Invasive Species lists the thistle head weevil as introduced in 3 countries: Latvia, Sweden and United States, but does not flag it as invasive in any of them.

### What kind of animal is the thistle head weevil?

The thistle head weevil (Rhinocyllus conicus) belongs to the family Curculionidae in the order Coleoptera.

## Sources

- [Catalogue of Life eXtended Release](https://www.checklistbank.org/dataset/316691), CC BY 4.0, 2026-10-16 XR. Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf
- [Global Register of Introduced and Invasive Species (GRIIS)](https://griis.org/), CC BY 4.0, 2026-11-13. Pagad, S., Genovesi, P., Carnevali, L., Schigel, D. & McGeoch, M.A. (2018) Introducing the Global Register of Introduced and Invasive Species. Scientific Data 5: 170202. https://doi.org/10.1038/sdata.2017.202. Country checklists published through GBIF by the IUCN SSC Invasive Species Specialist Group.
- [TraitCH: a multi-taxa functional trait dataset for Switzerland and Europe](https://doi.org/10.5281/zenodo.15063844), CC BY 4.0, 2.0. Chauvier, Y., Adde, A., Bergamini, A. et al. (2025) TraitCH: a multi-taxa functional trait dataset for Switzerland and Europe. Zenodo. https://doi.org/10.5281/zenodo.15063844

Cite as: Thistle head weevil (Rhinocyllus conicus). Retrieved from https://creaturedata.com/animals/thistle-head-weevil