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New Canopy-Dwelling Stick Insect Officially Described as Australia’s Heaviest

Identification hinged on the insect’s distinctive eggs following nocturnal surveys in Far North Queensland’s high-altitude canopy.

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© Angus Emmott

Overview

  • The newly named species, Acrophylla alta, reaches about 40 cm in length and weighs around 44 g, surpassing all previously recorded Australian insects.
  • Two female specimens collected in late July from the Atherton Tablelands have been deposited in the Queensland Museum for ongoing study.
  • Researchers confirmed Acrophylla alta as a new species by analyzing its uniquely patterned eggs and publishing the peer-reviewed description in Zootaxa.
  • Field teams are now mounting targeted searches for male individuals to complete the taxonomic profile and determine the species’ full distribution.
  • The finding underscores the vast, understudied diversity of high-altitude rainforest canopies and highlights the urgent need to protect these ecosystems from invasive species and climate change.