AmorbusNymph to Adult Stages Amorbus alternatus Amorbus robustus
Observing the various species of the genera Amorbus on eucalypt trees, over time you will see that as they grow, they go through some visually different stages from nymph to adult.
Amorbus alternatus
These nymph (the juvenile) stages will see the Amorbus alternatus undergo stages of moulting the skin, a process referred to as an “instar”. These instars involve some light colouration becoming darker or stronger in colour, some colour and pattern changes, which can make it appear to be different species.
Amorbus atomarius
Amorbus robustus
Although it was seen on the same plant as Amorbus alternatus, this is Amorbus robustus (Common Gum-Tree Bug).
Footnote & References
- Many thanks to lehelind, Danilo Lüdke Curator of iNaturalist for ID, ausemade, https://inaturalist.ala.org.au/observations?place_id=any&subview=map&taxon_id=461099&user_id=ausemade&verifiable=any
- Eucalyptus Tip-wilter Bugs – Tribe Amorbini, Brisbane Insects and Spiders, http://www.brisbaneinsects.com/brisbane_coreidbugs/Amorbini.htm
- Amorbus Dallas, 1852, Atlas of Living Australia, https://bie.ala.org.au/species/https://biodiversity.org.au/afd/taxa/8a14795b-f915-43a1-93c9-16dba4c195ac
- Genus Amorbus – observation listed on iNaturalistAU, https://inaturalist.ala.org.au/observations/142352905
- Genus Amorbus, Field Guide to the Insects of Tasmania, https://tasmanianinsectfieldguide.com/hexapoda/insectsoftasmaniahemiptera/suborder-heteroptera/infraorder-pentatomomorpha/superfamily-coreoidea/coreidae-leaf-footed-squash-bugs/genus-amorbus/
AmorbusNymph to Adult Stages Amorbus alternatus Amorbus robustus
Stink Bugs, Shield Bugs and AlliesAmorbus
InsectsBees Beetles Blattodea Butterflies Coleoptera Cicada Crabronidae Diptera Dragonflies & Damselflies Formicidae Hemiptera Heteroptera (True Bugs) Moths Orthoptera Orthopteroid Processionary Caterpillar Stink Bugs, Shield Bugs and Allies Wasps Water Scorpion (Laccotrephes tristis) Witchetty Grub