Cockroaches (Blattodea, several families)

A good reference for Cockroaches is the book “A Guide to the Cockroaches of Australia” by David Rentz. https://www.publish.csiro.au/book/6710/

This webpage by the CSIRO is also useful:
http://anic.ento.csiro.au/insectfamilies/order_overview.aspx?OrderID=42509&PageID=overview

Cockroaches (Blattodea, several families)

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Discussion

DiBickers wrote:

2 Feb 2025

This looks closer to an Ellipsidion humerale nymph to me. I can’t see it as an option to use as Suggestion so will leave at Genus-level.

Ellipsidion sp. (genus)

MichaelMulvaney wrote:

23 Jan 2025

Thanks Trevor

Robshelfordia circumducta

trevorpreston wrote:

23 Jan 2025

I cant find any info on Johnrehnia solida, and the inaturalist link is only a suggestion from one person and not a solid ID. Unfortunately they are not mentioned in Rentz's book on Cockroaches, so in the absence of evidence that this might be something else I am fairly confident in an ID of Robshelfordia circumducta.

Robshelfordia circumducta

trevorpreston wrote:

23 Jan 2025

Robshelfordia circumducta

trevorpreston wrote:

21 Jan 2025

I will do some reading, hopefully Rentz has some info in his cockroach book. From a quick online search they look very similar but I need to do more searching. Always more to learn.

Robshelfordia circumducta