Insects
Cockroaches (Blattodea, several families)

Cockroaches (Blattodea, several families)

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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

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Cockroaches (Blattodea, several families)

Featured sightings

Latest sightings

Robshelfordia circumducta (Shelford's Variable Cockroach) at Belconnen, ACT by JohnGiacon
Laxta granicollis (Common bark or trilobite cockroach) at Higgins, ACT by AlisonMilton
Blattidae sp. (family) (Unidentified blattid cockroach) at Goulburn, NSW by Hejor1
Unidentified Cockroach (Blattodea, several families) at Melba, ACT by kasiaaus
Robshelfordia circumducta (Shelford's Variable Cockroach) at Melba, ACT by kasiaaus
Ellipsidion australe (Austral Ellipsidion cockroach) at Duffy, ACT by Harrisi
Blattodea (order) at Harrison, ACT by DPRees125
Robshelfordia circumducta (Shelford's Variable Cockroach) at Harrison, ACT by DPRees125
Calolampra sp. (genus) (Bark cockroach) at Florey, ACT by KorinneM
Ellipsidion australe (Austral Ellipsidion cockroach) at Casey, ACT by Hejor1
Laxta granicollis (Common bark or trilobite cockroach) at Casey, ACT by Hejor1
Ellipsidion australe (Austral Ellipsidion cockroach) at Bungonia, NSW by AlisonMilton
Blattidae sp. (family) (Unidentified blattid cockroach) at Campbell, ACT by Hejor1
Unidentified Cockroach (Blattodea, several families) at Aranda, ACT by KMcCue
Ellipsidion australe (Austral Ellipsidion cockroach) at Bungendore, NSW by clarehoneydove
Ellipsidion australe (Austral Ellipsidion cockroach) at Bungendore, NSW by clarehoneydove
Ectobiinae (subfamily) at Harrison, ACT by DPRees125
Blattodea (order) (Unidentified cockroach) at Hughes, ACT by LisaH
Ellipsidion australe (Austral Ellipsidion cockroach) at Parkes, ACT by Neve_Foxcroft
Blattodea (order) (Unidentified cockroach) at Bonner, ACT by MegFluke
Ellipsidion humerale (Common Ellipsidion) at Cook, ACT by CathB
Platyzosteria melanaria at Goulburn, NSW by trevorpreston
Unidentified Cockroach (Blattodea, several families) at Isaacs, ACT by Mike
Panesthia australis (Common wood cockroach) at Cook, ACT by CathB
Ectobiidae sp. (family) (Cockroach) at Kambah, ACT by HelenCross
Ellipsidion humerale (Common Ellipsidion) at Kambah, ACT by HelenCross
Unidentified Cockroach (Blattodea, several families) at Kambah, ACT by HelenCross
Laxta granicollis at Chakola, NSW by AlisonMilton
Laxta granicollis (Common bark or trilobite cockroach) at Rivett, ACT by Neve_Foxcroft

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Discussion

MichaelMulvaney wrote:
13 min ago
Thanks Trevor
Robshelfordia circumducta
trevorpreston wrote:
15 min ago
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:
15 min ago
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:
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
kasiaaus wrote:
21 Jan 2025
I based my suggestion on iNaturalist and ALA records which also seem to come from iNaturalist so it may not be correct.
Robshelfordia circumducta

Recent activity

Robshelfordia circumducta at Belconnen, ACT

Robshelfordia circumducta at Melba, ACT

Johnrehnia solida at Belconnen, ACT

Blattodea (order) at Belconnen, ACT

Blattidae sp. (family) at Goulburn, NSW

Laxta granicollis at Higgins, ACT

Laxta granicollis at Higgins, ACT

Laxta sp. (genus) at Higgins, ACT

Blattidae sp. (family) at Goulburn, NSW

Johnrehnia solida at Melba, ACT

Species Richness Score (SRS)

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