Judalana lutea at Melba, ACT

Judy and Alans Yellow Ant-mimicking Jumping Spider at Melba, ACT

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Identification history

	Judalana lutea	6 Jun 2020	MichaelMulvaney
	Unidentified	29 Apr 2020	Bron

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Author's notes

Judalana lutea?

9 comments

YumiCallaway wrote:

8 May 2020

I haven't looked into it much yet, but I would suggest one of the 4 (I think?) ant mimic genus or if not, a genus like Domoetas. These are the only ones I can think of off the top of my head with this distinctive body shape.

CathB wrote:

9 May 2020

What about Rhombonotus gracilis?

MichaelMulvaney wrote:

9 May 2020

I think it is to large to be Rhombonotus gracilis which get up to 3mm

YumiCallaway wrote:

9 May 2020

I've looked through photos Whyte & Anderson's guide (2017) and arachne.org and have come up with this list:
Not Poecilipta sp (lack of speckled head)
Not Bianor sp (very different abdomen shape)
Perhaps Damoetas sp (potentially too small)
Not Holoplatys sp (It's quite convex; it's not flat)
Perhaps Judalana sp (potentially too small)
Perhaps Ligonipes sp (difficult to tell if the brushes of hair are present on leg 1, however I think this is likely)
Not Myrmarachne sp (leg 1 is not enlarged)
Not Rhombonotus sp (too small - it's small size is specifically stated)
Not Amyciaea sp (very different)
Maybe this will help!

YumiCallaway wrote:

9 May 2020

Also, Bron, do you remember if the first pair of legs were fringed? This might help point out genus.

Bron wrote:

9 May 2020

When I took the photo, Judalana lutea was suggested by the owner of the Amateur Entomology Australia site. I think the front legs were hairy? Yumi although I'm not sure (8 yeas ago) and my photographic skills on a small subject were pretty poor. Thanks for looking so hard for the id :) IT's not Holoplatys sp. The tags I have on this photo suggested Ligonipes sp.

YumiCallaway wrote:

10 May 2020

Thanks Bron! I've taken a closer look today think J. lutea is most likely. 1. Fringes of hair on the tibia suggest Jodalana sp or Ligonipes sp with Ligonipes sp being more prominent. This would rule out Damoetas sp. 2. The length of the metatarsus + tarsus suggest Jodalana sp or Damoetas sp. I've noticed that this is quite long and thin on Ligonipes which doesn't stand out to me for this individual. 3. Colour ratio and distribution can vary for Jodalana lutea from a portion of the upper abdomen being yellow to the entire abdomen being yellow. I think it can vary on the legs too.

Bron wrote:

10 May 2020

Your close looks are excellent Yumi! I agree :) Judalana lutea isn't included in CNM though... So what next?

MichaelMulvaney wrote:

10 May 2020

We can add it when the system is fully operational

Thanks Yumi

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