The spider mites we get around here have 2 dark spots on their back but I've seen pics here in one of the stickys with them looking like your's. I'm saying yes. http://www.icmag.com/ic/showthread.php?t=66865 check this out
I did had the same sort of mites. I took a handfull of chilies and 2 cigarettes and boiled for half an hour in 1,5 l water. Then i added 1 tablespoon of alcohol and clean brown sope. Let it all cool off and spray ur plants. Remember to spray under the leafs too. It kills the bastards instantly and ur plants dont get hurt. Check ur plant for new creatures after a couple of days and spray again. Use some kind of glasses to protect ur eyes from the chili. Maybe u think...WTF is lala crazy...But it actually works fine and is very very cheap.
neem oil, 2 applications 4 days apart and a 3rd spray for good luck and will be gone for sure.
plus if you have them late in flower then all I can think of that would be safe is a product with an "active ingredient called SPINOSAD', Monteray carries a brand of this ingredient and you can get it on amazon...
Spinosad works great for Thrips and Caterpillars, but not so much
for mites. Thanks though!
Since they're only on some clones I bought, I think i'll try floromite.
My local hydro sell little vials of it for $20
I'm also wondering if these things arn't eating aphid eggs or thrips, as I found a few of those, too
No webs and very little leaf damage.
I wish I spent the money for these clones on some decent seeds instead.