Jumping Spider Sexing

[High_Rolling_T]

I've been collecting tarantulas for a little bit now but have recently started to catch some jumping spiders. Out today looking around, I ran across a specimen I haven't seen around this area before. Most everything I've seen around here have been the common grey/white/brownish jumping spiders. This one however is black with yellow markings(similar to the chevrons on a Psalmopeous irminia). Unfortunately, up closer inspection, it has rather large pedipalps and well that tends to be a rather obvious hint in spiders.

My question is, being that my knowledge base is mainly Theraphosidae, and not true spiders and the like, would this mean that it is most likely a mature male? Is there any other clues or hints that I could look at that might help me determine jumping spider sex? I hope it's not a mature male since I have never seen another one like this around here, but if it is, I'll have to let the little guy go.

I will try and get a picture on here, but it might be awhile for me to get a hold of a camera that is decent enough for this little fellow.

 

[Silberrücken]

Sounds a lot like a MM Salticus scenicus. We'll know for sure when you post pics!

S.

 

[Widowman10]

what is the size on the little feller? could be as S said if it's a little jumper (1/4" ish). scenicus are usually fairly easy to ID.

sounds like it most likely is a mature male too. the mature males will have the enlarged palps.*

true spiders will be similar to T's in regards to palps, they'll be enlarged also, like with T's, sexual dimorphism will be a big indicator as well. the more familiar you get with the different species, you will be able to tell instantly just by the dimorphism.



*by enlarged, be familiar with the species a bit b/c some can be tricky. widows, among others, can and will show enlarged palps in the penultimate stage. the difference in palps between the penultimate and ultimate stages are the color of the palps (as seen from a distance) whereas size stays roughly the same, with ultimate palps being slightly larger.

 

[Captain]

Just wondering, what's the best way to tell the sex for Jumping Spiders? I know how to differentiate between mature males and females (size of pedipalps) but what about immature ones?