30mm long | December 30, 2011 | Quirinópolis, Goiás, Brazil
This thread-legged bug appears to be hanging in mid-air, but in fact it has delicately balanced itself on a spider web. Its beak holds a small spider that it must have just plucked from the center of the web.
Some thread-legged specialize in spiders, and I wonder if this might be one of them. Some are even known to lure the spider by plucking at the web like captured prey might.
Another view
Reduviids are always fascinating, but in South America you have some of the best ones. I think some of the Thread-legged ones here (Arizona) pluck the prey caught in a spider web rather than going after the spider. Easy to see how one behavior could lead to the other