Anoplognathus sp. (genus)

Unidentified Christmas beetle at Sawyers Gully, NSW

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Identification history

	Anoplognathus sp. (genus)	26 Mar 2025	HaukeKoch
	Anoplognathus porosus	26 Mar 2025	LeeMears

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4 comments

HaukeKoch wrote:

26 Mar 2025

This is likely A. boisduvalii given the streaked pattern of dark punctures on the elytra, but to definitely exclude A. porosus it's best to get a clear view of the back showing the dorsal side of the pygidium.

DiBickers wrote:

26 Mar 2025

@HaukeKoch there is a 2nd photo on this sighting which shows the dorsal-view but not sure if it shows the pygidium detail you need (just wanted to let you know in case you didn’t see the 2nd photo)😊

HaukeKoch wrote:

29 Mar 2025

Thanks Di,
I think that view also looks like A. boisduvalii, but it's not very visible.
Ideally, you'd want to see the area in this image for A. boisduvalii:
https://www.inaturalist.org/photos/252515833
Here is A. porosus for comparison, which has lines of white setae along the outer margins and through the midline of the pygidium, and a more polished surface structure:
https://www.inaturalist.org/photos/57698605

A. pallidicollis can also look similar to A. porosus, but has the pygidium covered across the whole surface in white setae.

DiBickers wrote:

29 Mar 2025

Thanks so much for helping us with Species-level discussion @HaukeKoch, really appreciated💚

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Location information

Coordinates 151.427669 -32.762685
Places Sawyers Gully, NSW

Sighting information

At least 1 Abundance
8 Jan 2024 07:32 AM Recorded on
LeeMears Recorded by
Collections
LMM NatureMapr Hunter Region Scarab beetles (Scarabaeidae) Beetles (Coleoptera) Insects

Additional information

12mm to 25mm Animal size
Alive / healthy Animal health

Species information

Anoplognathus sp. (genus) Scientific name
Unidentified Christmas beetle Common name
Not Sensitive
Local native
Non-invasive or negligible
Up to 1369m Recorded at altitude
Machine learning
External link More information

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

Australian Capital Territory

New South Wales

Queensland

Northern Territory

Western Australia

South Australia

Victoria

Tasmania