Polyclonus atratus
1 A sawfly at Dunlop, ACT
Identify this sighting
| Polyclonus atratus | KimPullen | 23 Mar 2019 | |
| Polyclonus atratus | KimPullen | 19 Mar 2019 | |
| Pergidae sp. (family) | CathB | 19 Mar 2019 |
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4 comments
20 Mar 2019
My grounds for suggesting this is Polyclonus (Pergidae: Euryinae) are circumstantial, as I have not seen an identified specimen or captioned image. The small size and body proportions suggest Euryinae; Naumann et al. 1991 (Hymenoptera in 'The insects of Australia', p.935) say 'males of Polyclonus have feather-like antennae'; and P. atratus (the only species in the genus) is recorded from the ACT in AFD.
21 Mar 2019
This looks rather like these, although they are all much further north
http://www.bowerbird.org.au/observations/123976
http://www.bowerbird.org.au/observations/91818
https://lifeunseen.smugmug.com/Insects/Bees-Wasps-Sawflies-order-Hyme/Sawflies-suborder-Symphyta/Subfamily-Styracotechyinae/i-cq4tvn2
http://www.bowerbird.org.au/observations/123976
http://www.bowerbird.org.au/observations/91818
https://lifeunseen.smugmug.com/Insects/Bees-Wasps-Sawflies-order-Hyme/Sawflies-suborder-Symphyta/Subfamily-Styracotechyinae/i-cq4tvn2
21 Mar 2019
A figure at https://pergidae.snsb-zsm.de/morphology shows a male antenna of Styracotechyinae (containing only Styracotechys) to be bipectinate, and the image of a male Styracotechys dicelysma at https://pergidae.snsb-zsm.de/adults also shows this. I looked at the URLs you cite, and only Bowerbird #91818 appears to have bipectinate antennae, so it is possible the other two are misidentified. Unfortunately, the characters used to distinguish Euryinae (e.g. Polyclonus) and Styracotechyinae (Styracotechys only) in the Naumann et al. 1991 key are not visible in CNM sighting #4204086.
24 Mar 2019
Sawfly expert Dr Stefan Schmidt of Zoologische Staatssammlung München (Bavarian State Collection of Zoology) has confirmed this as Polyclonus atratus, mainly based on the unipectinate antennae (teeth of comb in one row). This suggests that some of the other images online are misidentified.
Location information
- Coordinates 149.075487-35.267160
- Altitude 604.1m
- Maps Aranda Bushland
- Places Dunlop, ACT
Sighting information
- At least 1 Abundance
- 17 Mar 2019 02:42 PM Recorded on
- CathB Recorded by
- On Lomandra leaf Associated plant
- 5mm to 12mm Animal size
Collections
- Illilanga flagged sightings CathB Canberra & Southern Tablelands NatureMapr Polyclonus atratus Sawflies (Hymenoptera, Symphyta) Insects
Species information
- Polyclonus atratus Scientific name
- A sawfly Common name
- Not Sensitive
- Rare or uncommon native
- Non-invasive or negligible
- Up to 798.1m Recorded at altitude
- External link More information
Record quality
Quality score
6 / 7
- Images or audio
- More than one media file
- Verified by an expert moderator
- Nearby sighting(s) of same species
- GPS evidence of location
- Additional attributes
- Description