Sexing P. otiosus?

[VaejovisCarolineanusSDS]

I now have two adult P. otiosus. How would I determine their gender? They don't have any color or size differences, so I think they are both female. The newer one that I got looks like its two front legs might be a little bit fuzzier, but I might be mistaken. Also, could they be kept communally besides what gender they are? Does anyone have any care tips? Do they prefer an arboreal setup? I will try to post pictures soon.

 

[VaejovisCarolineanusSDS]

These pictures are of the on I've had the longest that I am pretty sure is female. I don't have a picture of the other one though.

 

[Ungoliant]

How would I determine their gender?

Mature males have palpal emboli, which look like little boxing gloves on the tips of their palps. They also tend to be darker and more slender. These do not look like mature males.

Also, could they be kept communally besides what gender they are?

I wouldn't recommend keeping them communally, or you are likely to end up with one fat spider.

 

[VaejovisCarolineanusSDS]

Mature males have palpal emboli, which look like little boxing gloves on the tips of their palps. They also tend to be darker and more slender. These do not look like mature males.




I wouldn't recommend keeping them communally, or you are likely to end up with one fat spider.

I just looked at a few other threads and most say the same about communal salticidae. Btw those pictures are the same individual.

 

[Ungoliant]

Btw those pictures are the same individual.

The second photo looks female to me. Here is one I rescued from a spiderweb (for comparison):

Female Phidippus otiosus (Salticidae)

• Ungoliant
• Jan 2, 2017
• 4
• jumping spider otiosus phidippus phidippus otiosus salticidae

A gravid female jumping spider that I rescued from a Kukulcania hibernalis web.

 

[VaejovisCarolineanusSDS]

I'll try to get a picture of the other otiosus tomorrow. I'm pretty sure they are both female though.

 

[VaejovisCarolineanusSDS]

Today I finally got to closely inspect both specimens and got a picture of the other otiosus. The look almost exacly the same except for the fact that this one appears to be a bit larger than the first one I had. So, I'd say this one is a mature female, and the other is a sub-adult female. What do you think?

 

[Ungoliant]

So, I'd say this one is a mature female, and the other is a sub-adult female. What do you think?

I can't tell the maturity from these images, but I'm not seeing any obvious male traits.

 

[VaejovisCarolineanusSDS]

I can't tell the maturity from these images, but I'm not seeing any obvious male traits.

That's what I was thinking. I just don't know what a male P. otiosus looks like so I came here for confirmation.

 

[Ungoliant]

That's what I was thinking. I just don't know what a male P. otiosus looks like so I came here for confirmation.

Here are some pictures of male Phidippus otiosus.

 

[VaejovisCarolineanusSDS]

Here are some pictures of male Phidippus otiosus.

Thanks