Cockroaches (Blattodea, several families)

Add a sighting Subscribe View significant View unverified

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

Continue reading

Cockroaches (Blattodea, several families)

Featured sightings

Johnrehnia contraria (Cockroach) at Aranda, ACT - 26 Dec 2023 by NateKingsford

Ectoneura pallidula at Mount Painter - 20 Feb 2024 by CathB

Ellipsidion australe (Austral Ellipsidion cockroach) at Vincentia, NSW - 1 Jan 2024 by RobG1

Ellipsidion australe (Austral Ellipsidion cockroach) at Mount Ainslie - 9 Dec 2023 by Hejor1

Johnrehnia concisa (A native cockroach) at Brunswick Heads, NSW - 3 Oct 2023 by coddiwompler

Anamesia frenchii at Leinster, WA - 29 Aug 2023 by HelenCross

Balta spuria (A Balta Cockroach) at Cook, ACT - 12 Apr 2022 by CathB

Calolampra sp. (genus) (Bark cockroach) at Harrison, ACT - 23 Aug 2023 by AndyRoo

Latest sightings

Blattidae sp. (family) (Unidentified blattid cockroach) at Nicholls, ACT - 24 Aug 2025 by Hejor1

Ellipsidion australe (Austral Ellipsidion cockroach) at Nicholls, ACT - 24 Aug 2025 by Hejor1

Ellipsidion australe (Austral Ellipsidion cockroach) at Parkes, ACT - 23 Aug 2025 by AlisonMilton

Laxta granicollis (Common bark or trilobite cockroach) at Bruce, ACT - 23 Aug 2025 by Hejor1

Blattidae sp. (family) (Unidentified blattid cockroach) at Bruce, ACT - 23 Aug 2025 by Hejor1

Blattidae sp. (family) (Unidentified blattid cockroach) at Russell, ACT - 22 Aug 2025 by Hejor1

Ellipsidion australe (Austral Ellipsidion cockroach) at Russell, ACT - 22 Aug 2025 by Hejor1

Ellipsidion australe (Austral Ellipsidion cockroach) at Higgins, ACT - 22 Aug 2025 by AlisonMilton

Ellipsidion australe (Austral Ellipsidion cockroach) at Isaacs, ACT - 23 Aug 2025 by Mike

Ellipsidion australe (Austral Ellipsidion cockroach) at Higgins, ACT - 18 Aug 2025 by AlisonMilton

Panesthia australis (Common wood cockroach) at Belconnen, ACT - 18 Aug 2025 by Christine

Allacta australiensis (Australian Allacta) at Nambucca Heads, NSW - 17 Aug 2025 by trevorpreston

Ellipsidion australe (Austral Ellipsidion cockroach) at Wanniassa, ACT - 12 Aug 2025 by AlisonMilton

Laxta sp. (genus) (Bark cockroach) at Wanniassa, ACT - 12 Aug 2025 by AlisonMilton

Paratemnopteryx couloniana at Wanniassa, ACT - 12 Aug 2025 by AlisonMilton

Laxta granicollis (Common bark or trilobite cockroach) at Higgins, ACT - 10 Aug 2025 by AlisonMilton

Laxta sp. (genus) (Bark cockroach) at Higgins, ACT - 10 Aug 2025 by AlisonMilton

Laxta sp. (genus) (Bark cockroach) at Higgins, ACT - 10 Aug 2025 by AlisonMilton

Calolampra sp. (genus) (Bark cockroach) at Lyneham, ACT - 4 Aug 2025 by trevorpreston

Blattidae sp. (family) (Unidentified blattid cockroach) at Kaleen, ACT - 8 Aug 2025 by Hejor1

Ellipsidion sp. (genus) (A diurnal cockroach) at Kingston, ACT - 7 Aug 2025 by Hejor1

Johnrehnia sp. (genus) at Belconnen, ACT - 2 Aug 2025 by Hejor1

Robshelfordia sp. (genus) (A Shelford cockroach) at Greenwich Park, NSW - 2 Aug 2025 by trevorpreston

Robshelfordia simplex (Shelford's Western Cockroach) at Greenwich Park, NSW - 2 Aug 2025 by trevorpreston

Panesthia australis (Common wood cockroach) at Crace, ACT - 27 Jul 2025 by Hejor1

Moderators

MichaelMulvaney

Amata

DiBickers

CarbonAI

become a moderator

Announcements

There are currently no announcements.

Discussion

MichaelMulvaney wrote:

21 Aug 2025

Thanks Trevor - changed to a suggestion

Balta spuria

trevorpreston wrote:

20 Aug 2025

I don't think this is a balta, closer to Ectoneura.

Balta spuria

trevorpreston wrote:

17 Aug 2025

I know i identified them as this species last time, but Im still not 100% sure its correct as I haven't been able to see an adult yet. Still, the patterning is by far the best match I can find. It'd be nice if someone more expert in cockroaches could give us an opinion.

Allacta australiensis

MichaelMulvaney wrote:

17 Aug 2025

I think this is close to being the most southern recorded location

Allacta australiensis

NateKingsford wrote:

4 Aug 2025

Looks more like Methana convexa or a related species. I agree this doesn't look like Laxta to me (especially a female too)

Laxta granicollis

Significant sightings

Recent activity

Blattidae sp. (family) at Nicholls, ACT

Blattidae sp. (family) at Nicholls, ACT

Ellipsidion australe at Nicholls, ACT

Ellipsidion australe at Nicholls, ACT

Ellipsidion australe at Nicholls, ACT

Ellipsidion australe at Parkes, ACT

Ellipsidion australe at Parkes, ACT

Ellipsidion australe at Parkes, ACT

Laxta granicollis at Bruce, ACT

Blattidae sp. (family) at Bruce, ACT

Species Richness Score (SRS)

157

Top contributors

trevorpreston 315
Hejor1 198
AlisonMilton 106
kasiaaus 46
MichaelBedingfield 43
ConBoekel 35
CathB 28
JohnGiacon 28
Harrisi 28
jb2602 24

Top moderators

802,284 sightings of 23,086 species from 14,562 members
CCA 3.0 | privacy

NatureMapr is developed by at3am IT Pty Ltd and is proudly Australian made