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iNat·456106SpeciesInsecta89 field observations
  1. Animals
  2. ›Arthropods
  3. ›Hexapods
  4. ›Insects
  5. ›Winged and Once-winged Insects
  6. ›Beetles
  7. ›Water, Rove, Scarab, Long-horned, Leaf, and Snout Beetles
  8. ›Cucujiform Beetles
  9. ›Snout and Bark Beetles
  10. ›True Weevils
  11. ›Minute Seed Weevils
  12. ›Ceutorhynchini
  13. ›Trichosirocalus
Thistle Crown Weevil
Plate 1 of 10. (c) Landcare Research New Zealand Ltd, some rights reserved (CC BY) · via iNaturalist

Thistle Crown Weevil

Trichosirocalus horridus

Trichosirocalus horridus is a species of true weevils, native to Europe. It is a biological pest control agent that was introduced into the United States in 1974 to control exotic thistles, especially in the Cirsium and Carduus genera.

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geo-referenced records in GBIF, from museums, herbaria and field observers.

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Every page naming Trichosirocalus horridus in the Biodiversity Heritage Library →

This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 456106.