BlattodeaAnamesia sp Balta bicolor Bush Cockroach Ellipsidion Ellipsidion australe Ellipsidion humarale Nasutitermes triodiae Termite — Alate

The Native Cockroach (Ellipsidion australe), genus Ellipsidion, is striking looking bush cockroach, also known as the Austral Ellipsidion. The young nymph and adult are both beautiful looking cockroaches.

Austral Ellipsidion (Ellipsidion australe), Belair SA © Marianne Broug
Austral Ellipsidion (Ellipsidion australe), Belair SA © Marianne Broug
Austral Ellipsidion (Ellipsidion australe), Adelaide Hills SA © Marianne Broug
Austral Ellipsidion (Ellipsidion australe), Adelaide Hills SA © Marianne Broug
Bush Cockroaches mating (Ellipsidion australe), Toowoomba QLD © Marc Newman
Bush Cockroaches mating (Ellipsidion australe), Toowoomba QLD © Marc Newman

Many native cockroaches are found feeding on pollen in shrubs, trees and other flowering plants. The one here was feeding on the pollen of the Ponytail Palm. Other bush cockroaches are found feeding on bark and leaf matter. Some species in the genus Panesthia have adapted to eating decomposing wood, they have similar micro-organisms in their gut as found in termites (Order Isoptera).


  • Scientific classification
  • Kingdom: Animalia
  • Phylum: Arthropoda
  • Class: Insecta
  • Order: Blattodea
  • Family: Ectobiidae
  • Genus: Ellipsidion
  • Species: Ellipsidion australe
Native Cockroach / Bush Cockroach (Ellipsidion australe), Alice Springs, NT
Native Cockroach / Bush Cockroach (Ellipsidion australe), Alice Springs, NT
Native Cockroach / Bush Cockroach (Ellipsidion australe), Alice Springs, NT
Native Cockroach / Bush Cockroach (Ellipsidion australe), Alice Springs, NT

Footnote & References

  1. Austral Ellipsidion (Ellipsidion australe), Marianne Broug, iNaturalistAU, https://inaturalist.ala.org.au/photos/335268334
  2. Austral Ellipsidion (Ellipsidion australe), Marianne Broug, iNaturalistAU, https://inaturalist.ala.org.au/observations/107015398
  3. Bush Cockroaches mating (Ellipsidion australe) © Marc Newman, Flickr
  4. Native Cockroaches, Australian Museum, https://australian.museum/learn/animals/insects/native-cockroaches/
  5. Austral Ellipsidion – Ellipsidion australe, Brisbane Insects and Spiders, https://www.brisbaneinsects.com/brisbane_cockroaches/BushCockroaches.htm
Bush Cockroach (Ellipsidion australe), Alice Springs, NT
Bush Cockroach (Ellipsidion australe), Alice Springs, NT

BlattodeaAnamesia sp Balta bicolor Bush Cockroach Ellipsidion Ellipsidion australe Ellipsidion humarale Nasutitermes triodiae Termite — Alate