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

Unidentified Cockroach (Blattodea, several families) at Melba, ACT by kasiaaus
Ellipsidion australe (Austral Ellipsidion cockroach) at Higgins, ACT by AlisonMilton
Ectoneura sp. (genus) (Cockroach) at Harrison, ACT by DPRees125
Ectobiidae sp. (family) at Emerald, VIC by GlossyGal
Ectoneura sp. (genus) (Cockroach) at Acton, ACT by TimL
Laxta sp. (genus) (Bark cockroach) at Melba, ACT by kasiaaus
Platyzosteria similis (Red-legged litter runner) at Kambah, ACT by HelenCross
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) at Lane Cove, NSW by Hejor1
Blattidae sp. (family) at Lindfield, NSW by Hejor1
Blattidae sp. (family) at Lindfield, NSW by Hejor1
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
Drymaplaneta communis at Robinvale, VIC by AlisonMilton
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
Calolampra sp. (genus) (Bark cockroach) at South Durras, NSW by ajlandford
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

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DiBickers
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Discussion

DiBickers wrote:
1 hr ago
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
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

Significant sightings

Recent activity

Ellipsidion sp. (genus) at North Albury, NSW

Ellipsidion australe at Higgins, ACT

Ellipsidion australe at Higgins, ACT

Ellipsidion australe at Higgins, ACT

Ellipsidion australe at Higgins, ACT

Ellipsidion australe at North Albury, NSW

Ectoneura sp. (genus) at Harrison, ACT

Ellipsidion australe at Harrison, ACT

Ectoneura sp. (genus) at Harrison, ACT

Ectoneura sp. (genus) at Acton, ACT

Species Richness Score (SRS)

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