A strange looking arachnid. The body shape is very like the common whip scorpion, but the front pincers and coloration is something I've never seen before. This example is small (2-2.5 cm), black on the thorax and first segments of the legs. The abdomen is black with white stripes and the last leg segments are light colored. The front legs appear to have a larger "joint" where the last segment starts and then a very thin claw. Perhaps a Crab Spider.
This was found on a leaf along the edge of a clearing in the Amazon rainforest of SE Ecuador.
I assumed this was a spider when I took the picture. It dropped off the leaf and was immediately lost before I could get a decent picture. When looking at the pictures on computer I noticed the similarity to the Whip Scorpions. I've never seen one like this. Hope someone can help confirm that it is a whip spider and perhaps a genus.