Unidentified Christmas beetle at Sawyers Gully, NSW
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.
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.
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 Anoplognathus sp. (genus) 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
- 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