Peltoschema scaphula

2 Bungonia, NSW

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Identification history

Peltoschema scaphula	13 Sep 2024	martinl
Peltoschema scaphula	12 Sep 2024	MichaelMulvaney
Peltoschema sp. (genus)	12 Sep 2024	RobG1

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User's notes

Feeding on the leaves. One was a jade green colour and the other a brownish colour.

4 comments

martinl wrote:

12 Sep 2024

This species is Peltoschema scaphula (Chapuis, 1877). It is clearly part of the 'orphana' species group and allied to P. suturalis, which along with this species is found on phylodinous Acacia. The dark mark along the suture extending through the pronotum is an entirely unique feature. I have seen a pinned specimen in SAM that was found in NSW which is an exact match. Other records occur around suburban Sydney.

martinl wrote:

12 Sep 2024

I am interested in the host plant and if you saw it (them) actually feeding. I would expect them on broad 'leafed' Acacia only. This plant is certainly not Acacia. I believe the green specimen is fresh (young) and the brown one is older.

MichaelMulvaney wrote:

12 Sep 2024

Possibly it is on Lasiopetalum macrophyllum

RogerF wrote:

12 Sep 2024

Hello Martini, Just to clear up a few observations. This
Peltoschema was first seen on the Lasiopetalum growing beneath a large Acacia binervia. I later looked at the scalloping on the phyllodes of this Acacia and found more beetles but not larvae. Clearly the Acacia binervia is the primary host, not the Lasiopetalum.

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