They are about the size of a seven year old child, and have translucent butterfly wings growing out of their back. The creatures have gold-dusted skin, and large insect eyes. They also have eight multi-jointed spider legs that make up their bottom halves.
They are poisonous, and have dripping pincers and line a circular gullet lined with many more tiny triangular teeth.
Slyphs cocoon their prey, then inject a chemical that dissolves its organs; leaving nothing but a dried-out husk when they finish.