I found a number of these spiders, but only one adult (this female), by beating palm fronds here in the morning hours. Interestingly, I found none of these spiders on palm fronds when I tried again the next day in the late afternoon. More info. at BG here:
http://bugguide.net/node/view/1359760/bgimage

Recently transferred to Metaphidippus, iNat still has the old taxonomy.