Places
New South Wales
Alpine, NSW
Alpine, NSW
Announcements
8 hrs ago
Hello NatureMaprs!This is an appeal to any current moderators or those looking to become a moderator. NatureMapr is now recieving an increased number of sightings from the NSW North Coast region (exci...
Continue reading
NatureMapr partners with NSW BCT on next phase of Land Libraries
I'm glad we got attacked - platform outage update
Change to user profile page structure
Discussion
KorinneM
wrote:
19 Feb 2025
By location, it is most likely to be Eusynthemis tillyardi, based on the distributions on iNat, but we can't see the key features to definitely differentiate between it and E. guttata.
Eusynthemis sp. (genus)
KorinneM
wrote:
11 Aug 2024
@JanHartog I spent quite a long time comparing against both A. obscura and A. multipunctata. It's hard, I will agree, to differentiate with teh one angle and it unfortunately being a further away shot.
The defining feature is "Anterodorsal spots on abdominal terga 3 and 4 generally much reduced or absent, and on 5-7, lacking". vs for multipunctata: "Anterodorsal spots on abdominal terga 3 and 4 generally well
developed, and on 5-7, usually detectable"
To me, there's some hints of maybe 'reflections' in those spots on 6 and 7 and that's it. 4 there's maybe a reflection, or maybe it's something just greatly reduced from the size of 3, which fits more with obscura.
The terga numbering of the abdomenal sections is listed here: http://azdragonfly.org/external-anatomy.
To get an idea of what I'm looking at, compare multipunctata: Austroaeschna multipunctata (Multi-spotted Darner) and obscura: https://inaturalist.ala.org.au/observations/202008587 looking at those abdomenal segements. The top view is the easiest to pick it up first.
Is there reasons you're thinking multipunctata?
The defining feature is "Anterodorsal spots on abdominal terga 3 and 4 generally much reduced or absent, and on 5-7, lacking". vs for multipunctata: "Anterodorsal spots on abdominal terga 3 and 4 generally well
developed, and on 5-7, usually detectable"
To me, there's some hints of maybe 'reflections' in those spots on 6 and 7 and that's it. 4 there's maybe a reflection, or maybe it's something just greatly reduced from the size of 3, which fits more with obscura.
The terga numbering of the abdomenal sections is listed here: http://azdragonfly.org/external-anatomy.
To get an idea of what I'm looking at, compare multipunctata: Austroaeschna multipunctata (Multi-spotted Darner) and obscura: https://inaturalist.ala.org.au/observations/202008587 looking at those abdomenal segements. The top view is the easiest to pick it up first.
Is there reasons you're thinking multipunctata?
Austroaeschna obscura
JanHartog
wrote:
11 Aug 2024
I'm not convinced this is an Austroaeschna obscura. On the basis of which characteristics did you come to this conclusion?
Austroaeschna obscura
KorinneM
wrote:
8 Aug 2024
I'm not confident to distinguish between A. obscura and A. multipunctata from that photo. Both could potentially be in this location. I'm leaning towards A. obscura.
Austroaeschna obscura
