Jumping spider identification?

Buenos Aires, Argentina

Hello! I'm Kay, a spider enthusiast from the suburbs of Buenos Aires, Argentina. I recently found these spiders roaming around my house- and I found them quite alluring! After some research I'm pretty sure they are jumping spiders, but I'm not sure of what else. I caught one, it was incredibly smart and cute, but I let it go after taking some pictures. I have also watched it ambush and catch ants around its size! It was very skilled :)
I'll send some pictures- if they aren't clear, it is a very small spider, on a brick for size comparison. It has two horizontal black stripes on its back and a very strange round yellow marking on its head. It almost looks like an upside-down omega symbol!
Its overall color is a very dull brown, it has several stripes on its legs.
I wish I could have taken better pictures, but it seems like it's going to permanently reside in my garden wall- it made itself a little home on a hole, and I get the feeling there might be some more around the place!
I hope someone can help me identify these little ones as I couldn't find anything about them online, and I don't have the time to do a detailed search.
Thank you! :)

Thumbnail by kaidamoon Thumbnail by kaidamoon Thumbnail by kaidamoon
Minot, ND

Unless someone on this forum is well-acquainted with the spider fauna of Argentina, your chances of getting a specific i.d. are pretty slim. You can find a list of the salticid species reported from Argentina at http://coleoptera-neotropical.org/6_Arthropoda/60_ARACHNIDA/arachnida/fam/salticidae/arg-salticidae.html, but unfortunately, images are not included...

Buenos Aires, Argentina

... sigh. This is gonna be a long, loooooong search DX
However I'm not gonna give up easily! I just wish there were an easier way to find it :/
Thanks Flapdoodle!

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