Cyclosa longicauda
Cyclosa longicauda is a species of spider in the orb-weaver family Araneidae, found from Colombia to Argentina.
This Neotropical species has been formally documented in Peru to construct an elaborate, non-linear stabilimentum from detritus and silk that visually mimics a larger spider. This specific "decoy spider" behavior is hypothesized to be an advanced defense mechanism against visual predators.