Sidymella trapezia
Trapezoid Crab Spider at Melba, ACT
Identify this sighting
| Sidymella trapezia | MichaelMulvaney | 29 Apr 2020 | |
| Sidymella trapezia | Bron | 29 Apr 2020 |
Please Login or Register to identify this sighting.
1 comment
29 Apr 2020
Hi Bron!
I do agree with your suggested ID but - because I'm trying to be accurate/sure of ID - I'm not convinced. I don't see why it couldn't be S. longipes instead of S. trapezia... (In Whyte & Anderson's guide, S. longipes is on p.362 & S. trapezia is on p. 363) Distribution range overlaps, judging by leg length is unreliable and I don't think there is a particularly distinctive feature between the two, with quite a bit in the features (colour, colour richness, colour distribution and spottiness of legs etc). From what I've found, the male S. trapezia seems to have quite dark legs, but yours isn't as dark.
It might be more accurate to have it under Sidymella sp? I haven't gone too in-depth with research though on potential revisions which may have laid out specific differences.
I do agree with your suggested ID but - because I'm trying to be accurate/sure of ID - I'm not convinced. I don't see why it couldn't be S. longipes instead of S. trapezia... (In Whyte & Anderson's guide, S. longipes is on p.362 & S. trapezia is on p. 363) Distribution range overlaps, judging by leg length is unreliable and I don't think there is a particularly distinctive feature between the two, with quite a bit in the features (colour, colour richness, colour distribution and spottiness of legs etc). From what I've found, the male S. trapezia seems to have quite dark legs, but yours isn't as dark.
It might be more accurate to have it under Sidymella sp? I haven't gone too in-depth with research though on potential revisions which may have laid out specific differences.
Location information
- Coordinates 149.053065-35.208802
- Places Melba, ACT
Sighting information
- At least 1 Abundance
- 20 Jan 2012 02:51 PM Recorded on
- Bron Recorded by
- 12mm to 25mm Animal size
Collections
Species information
- Sidymella trapezia Scientific name
- Trapezoid Crab Spider Common name
- Not Sensitive
- Local native
- Non-invasive or negligible
- Up to 846.96m Recorded at altitude
- External link More information
Record quality
Quality score
4 / 7
- Images or audio
- More than one media file
- Verified by an expert moderator
- Additional attributes
- Nearby sighting(s) of same species
- GPS evidence of location
- Description