Bison-dung

Guides

• Thecesternus

  bison dung weevils, bison snout beetles

  Thecesternus is a genus of flightless, nocturnal broad-nosed weevils comprising approximately seven described species. These small beetles, measuring about six millimeters in length, are known for their truncated rostrum and habit of sheltering under bison dung in grassland habitats. The genus has been studied primarily through *T. hirsutus*, which was evaluated as a potential biological control agent for the invasive weed *Parthenium hysterophorus*.

  weevilCurculionidaebroad-nosed-weevilflightlessnocturnalprairiegrasslandbison-dungcrypticthanatosisbiological-controlNorth-America