Gold Coast Bugs (Hemiptera & Heteroptera)Assassin Bug (Pristhesancus plagipennis) Common Milkweed Bug (Arocatus rusticus) Cotton Harlequin Bug (Tectocoris diophthalmus) Eucalyptus Tip-wilting Bug (Amorbus alternatus) Green Jewel Bug (Lampromicra senator) Green-faced Wattle Hopper (Hackerobrachys viridiventris) Mallotus Harlequin Bug (Cantao parentum) Orange Assassin Bug (Gminatus australis) Red Spiny Assassin Bug (Scipinia arenacea) Shield Bug (Antestiopsis cederwaldi)

Commonly known as the Eucalyptus Tip-wilting Bug, the species Amorbus alternatus, have tube mouth parts (like all Amorbus spp) that is used to suck the sap out of the Eucalypt leaves.

Amorbus alternatus (Eucalyptus Tip-wilting Bug), Gold Coast QLD © Stefan Jones
Amorbus alternatus (Eucalyptus Tip-wilting Bug), Gold Coast QLD © Stefan Jones

Through the nymph (juvenile) stages, the Amorbus alternatus. undergo stages of moulting the skin, a process referred to as an “instar”. These instars can involve some dramatic colour changes, which for the novice, appear to be different species.

Five-legged Amorbus alternatus, Gold Coast QLD © Stefan Jones
Five-legged Amorbus alternatus, Gold Coast QLD © Stefan Jones
Amorbus alternatus, Gold Coast QLD © Stefan Jones
Amorbus alternatus, Gold Coast QLD © Stefan Jones
Amorbus alternatus, Gold Coast QLD © Stefan Jones
Amorbus alternatus, Gold Coast QLD © Stefan Jones
Amorbus alternatus, Gold Coast QLD © Stefan Jones
Amorbus alternatus, Gold Coast QLD © Stefan Jones

Also see Insects > Stink Bugs, Shield Bugs and Allies | Amorbus | Amorbus alternatus


  • Scientific classification
  • Kingdom: Animalia
  • Phylum: Arthropoda
  • Subphylum: Hexapoda
  • Class: Insecta
  • Informal: Pterygotes
  • Order: Hemiptera
  • Suborder: Heteroptera
  • Infraorder: Pentatomomorpha
  • Superfamily: Coreoidea
  • Family: Coreidae
  • Subfamily: Coreinae
  • Tribe: Amorbini
  • Genus: Amorbus
  • Species: Amorbus alternatus

Footnote & References

  1. Photographs © Stefan Jones
  2. Eucalyptus Tip-wilter Bugs – Tribe Amorbini, Brisbane Insects and Spiders, http://www.brisbaneinsects.com/brisbane_coreidbugs/Amorbini.htm
  3. Amorbus Dallas, 1852, Atlas of Living Australia, https://bie.ala.org.au/species/https://biodiversity.org.au/afd/taxa/8a14795b-f915-43a1-93c9-16dba4c195ac
  4. Amorbus alternatus, iNaturalistAU, https://inaturalist.ala.org.au/taxa/510505-Amorbus-alternatus

Gold Coast InsectsAntlions, Lacewings, and Allies (Neuroptera) Ants Bees Beetles Bugs (Hemiptera & Heteroptera) Buterflies & Moths Flies (Diptera) Wasps

Gold Coast RegionFauna

QueenslandGold Coast Region Lamington National Park Southern Downs QLD