Trigonidium sp. novum (undescribed)

3 A Sword-tail Cricket at Tharwa, ACT

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Identification history

Trigonidium sp. novum (undescribed)	7 Jun 2023	MichaelBedingfield
Trigonidium sp. (genus)	6 Jun 2023	RogerF
Trigonidium australiana	2 May 2019	MichaelBedingfield
Grylloidea (superfamily)	19 Apr 2019	KimPullen
Unidentified	8 Apr 2019	Christine

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Significant sighting

MichaelBedingfield noted:

7 Jun 2023

An undescribed species, see comment by Roger Farrow

11 comments

Youning wrote:

2 May 2019

Female Trigonidium species near australiana.

MichaelBedingfield wrote:

2 May 2019

Thanks Youning

KimPullen wrote:

3 May 2019

The name Trigonidium is neuter in gender; the species name should agree in gender, so be 'australianum'.

MichaelBedingfield wrote:

3 May 2019

KIm, the ALA has it as Trigonidium (Trigonidium) australiana. But we can change it if you wish.

KimPullen wrote:

4 May 2019

Michael, I'll leave it up to Youning to go with the names he uses.

Youning wrote:

16 May 2019

Kim is correct, the name supposes to agree in gender, but we tend to follow the OSF
http://orthoptera.speciesfile.org/HomePage/Orthoptera/HomePage.aspx
I have to correct my previous ID, this one may not be T. australiana, I just received a large macropterous male with different genitalia collected from my friend's property in Lyons. This female also looks more robust and slender to me. Trigonidium is a complex group, pattern and colour can be vary within species according to the age, they also have both short-winged and long-winged form.

RogerF wrote:

6 Jun 2023

Undescribed species novum. We now have specimens from Mongarlow

MichaelBedingfield wrote:

6 Jun 2023

Hi Roger. Should we separate out this sighting from other Trigonidium sp. (genus) and give it a different name, something like "Trigonidium undescibed sp." ?

RogerF wrote:

6 Jun 2023

Yes that would be a good idea Michael. I suggest Trigonidium sp. novum but you can use undescribed species as well. Its worth elevating to a significant sighting because of its undescribed status.

MichaelBedingfield wrote:

7 Jun 2023

Hi Roger. I've called it Trigonidium sp. novum (undescribed) & marked it as significant.

Christine wrote:

7 Jun 2023

Thanks all of you for your time, your research and your expertise, I do appreciate it :)

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Location information

Sighting information

2 Abundance
7 Apr 2019 02:36 PM Recorded on
Christine Recorded by
Collections
Significant sightings Insects Grasshoppers, Crickets & Katydids (Orthoptera) Crickets (Orthoptera, several families) Christine

Additional information

5mm to 12mm Animal size

Species information

Trigonidium sp. novum (undescribed) Scientific name
A Sword-tail Cricket Common name
Not Sensitive
Rare or uncommon native
Non-invasive or negligible
Machine learning

Record quality

Images or audio
More than one media file
Verified by an expert moderator
Nearby sighting(s) of same species
GPS evidence of location
Description
Additional attributes