Grand Litter Cockroach
Male, Posterior, dorsal		Ellura
Grand Litter Cockroach
Male, Legs, ventral		 
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Grand Litter Cockroach (Platyzosteria grandis)Class: Animals (Animalia) - Jointed Legs (Arthropoda) - Insects (Insecta)
Order: Cockroaches (Blattodea)
Family: Cockroach (Blattidae)     iNaturalist Observation
Species: Grand Litter Cockroach (Platyzosteria grandis)
This Photo:     🔍Male, Posterior, ventral🔎
Thank you Matthew Connors (Matthew_Connors) for identifying this species for us

General Species Information:
Found on Ellura (in the Murray Mallee, SA) and elsewhere
1st Live Photo on-line
1st Record on iNaturalist
This is the biggest cockroach we've every seen! 48mm long!!! Also it's a male and the females are usually larger!
Matthew said "Completely apterous + angles of ninth tergite sharp + tarsal claws strongly asymmetrical + femoral comb well-developed"
Copyright © 2021-2026 Brett & Marie Smith. All Rights Reserved. Photographed 27-Nov-2021
This species is an Australian Native Species, not listed in the SA Murray Mallee Survey of 2010.