A very cute and rare (to me :D) ant-mimic crab spider, Amyciaea lineatipes?.
All images shot with a Canon 40D, Canon MP-E65 1X-5X macro lens and Canon MT-24EX Twin Flash with DIY Diffusers.
If you would like to see more spiders, check these out:
1. Ant-mimic crab spider eating weaver ant
2. More ant-mimic spiders
3. Wonderful jumping spiders
4. Ant-mimic crab spider - mating!
5. Male red ant-mimic jumping spider