Alice Springs Fauna •

Alice Springs True Bugs (Heteroptera)Eucalyptus Tip-wilting Bug Ground Shield Bug (Choerocoris paganus) Ippatha australiensis Poecilometis patruelis (Shield Bug) Soapberry Bugs, Leptocoris sp Spilostethus sp Water Scorpion

Known as the Eucalyptus Tip-wilting Bug (Amorbus alternatus), goes through a number of instar stages before developing into the adult of the species. Their other common name is Gumtree Tip-wilter Bug, as the name suggested, is where they are often found.

Eucalyptus Tip-wilting Bug (Amorbus alternatus), nymph, Araluen, Alice Springs NT
Eucalyptus Tip-wilting Bug (Amorbus alternatus), nymph, Araluen, Alice Springs NT

Whilst the adult of the Eucalyptus Tip-wilter Bug are mainly dark brown in colour, with light brown and orange on the legs and antennae. Along the edges of the abdomen they have alternating brown and yellow pattern. The nymphs are different in that they are a colourful orange, with bright blue patterns (sometimes an yellow-orange to pink). Both adults and nymphs can release strong repellent odour when disturbed.

Eucalyptus Tip-wilting Bug (Amorbus alternatus), nymph, Araluen, Alice Springs NT
Eucalyptus Tip-wilting Bug (Amorbus alternatus), nymph, Araluen, Alice Springs NT

As they grow, the nymph (the juvenile) stages of moulting the skin, a process referred to as an “instar”. In some Amorbus sp, these instars can involve some dramatic colour changes, appearing to be different species.

Eucalyptus Tip-wilting Bug (Amorbus alternatus), nymph, Araluen, Alice Springs NT
Eucalyptus Tip-wilting Bug (Amorbus alternatus), nymph, Araluen, Alice Springs NT
Eucalyptus Tip-wilting Bug (Amorbus alternatus), nymph, Araluen, Alice Springs NT
Eucalyptus Tip-wilting Bug (Amorbus alternatus), nymph, Araluen, Alice Springs NT
Eucalyptus Tip-wilting Bug (Amorbus alternatus), nymph, Araluen, Alice Springs NT
Eucalyptus Tip-wilting Bug (Amorbus alternatus), nymph, Araluen, Alice Springs NT

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. Eucalyptus Tip-wilter Bugs – Tribe Amorbini, Brisbane Insects and Spiders, http://www.brisbaneinsects.com/brisbane_coreidbugs/Amorbini.htm
  2. Amorbus Dallas, 1852, Atlas of Living Australia, https://bie.ala.org.au/species/https://biodiversity.org.au/afd/taxa/8a14795b-f915-43a1-93c9-16dba4c195ac
  3. Genus Amorbus – observation listed on iNaturalistAU, https://inaturalist.ala.org.au/observations/142352905
  4. Amorbus alternatus, iNaturalistAU, https://inaturalist.ala.org.au/taxa/510505-Amorbus-alternatus

Alice Springs True Bugs (Heteroptera)Eucalyptus Tip-wilting Bug Ground Shield Bug (Choerocoris paganus) Ippatha australiensis Poecilometis patruelis (Shield Bug) Soapberry Bugs, Leptocoris sp Spilostethus sp Water Scorpion

Alice Springs InsectsAntlion (Heoclisis fundata) Ants (Formicidae) Bees Beetles Blattodea Butterflies & Moths (Lepidopterans) Diptera Dragonflies Orthoptera – Orthopteroids True Bugs (Heteroptera) Wasps

Alice Springs FaunaAlice Springs Native Bees Alice Springs Beetles Alice Springs Birds Alice Springs Gastropods (Gastropoda) Alice Springs Insects Alice Springs Marsupials Alice Springs Reptiles Alice Springs Spiders

Alice Springs FloraAlice Springs Flora Index Acacia ligulata Annual Yellowtop Bougainvillea Apple Bush Burdekin Plum Carob Tree (Ceratonia siliqa) Cattle Bush Desert Cotton (Aerva javanica) Desert Oak Eremophila Wildberry Feijoa sellowiana Flannel Cudweed Fork-leaf Corkwood Ghost Gum Golden Everlasting Kurrajong Lemon-flowered Gum MacDonnell’s Desert Fuchsia Native Bluebell Native Tomato Needlewood Olive Tree Perennial Yellow Top Rat’s Tail River Red Gum Inland River Red Gum Rosy Dock Round-leaved Mallee Scurvy Grass Silky Eremophila Stemodia viscosa Striped Mintbush Sturt’s Desert Pea Sturt’s Desert Rose Tangled Leschenaultia Tar Vine Weeping Bottlebrush White Cedar Yellow Billybutton Yellow-keeled Swainsona Yellow Oleander

Alice SpringsAlice Springs Accommodation Alice Springs Pet Friendly Accommodation Alice Springs Art & Culture Alice Springs Attractions Alice Springs Directory Alice Springs Distance Alice Springs Festival & Events Alice Springs Flora and Fauna Alice Springs Fauna Alice Springs Flora Getting Around Alice Springs Alice Springs Aboriginal Tours Alice Springs Tours Alice Springs Tours – Other