Landcare Research - Manaaki Whenua

Landcare-Research -Manaaki Whenua

Swan plant seed bug

Arocatus rusticus (StÂl)

Order: Hemiptera
Family: Lygaeidae

Size range

  • About 10 mm long


  • Originally from Australia.
  • Found in NZ, as far south as Central Otago

Life History

  • Nymphs and adults feed on seeds of swan plant (Gomphocarpus).
  • Also found on Tweedia and Parsonsia (a NZ creeper)
  • Adults hibernate amongst dead leaves and under bark

Additional images