Kim Taylor / Close up of Puss moth caterpillar {Cerura vinula} feeding on Goat willow, UK.

Ingo Arndt / Puss Moth (Cerura vinula) on stem, Europe

Ingo Arndt / Puss moth caterpillar in defense posture {Cerura vinula}, Germany.Europe

Jen Guyton / Caterpillar (Megalopygidae) captive in a butterfly house in Monteverde, Costa Rica. This caterpillar shows aposematic, or warning coloration.

David Kjaer / Puss moth caterpillar (Cerura vinula) Wiltshire UK

MYN / Javier Aznar / Moth (Trosia sp.) Mashpi, Ecuador. Meetyourneighbours.net project

Konrad Wothe / Hairy caterpillar (Megalopygidae) Panguana Reserve, Huanuco province, Amazon basin, Peru.

Alex Hyde / Puss Moth caterpillar (Cerura vinula) feeding on Goat Willow (Salix caprea), Derbyshire, UK. May.

Alex Hyde / Puss Moth caterpillar (Cerura vinula) feeding on Goat Willow (Salix caprea), Derbyshire, UK. May.

MYN / JP Lawrence / Megalopyge albicollis Gamboa, Panama. Meetyourneighbours.net project. The hairs on this are very painful and can cause a stinging sensation for hours.

MYN / JP Lawrence / Moth caterpillar (Megalopyge albicollis) Gamboa, Panama. Meetyourneighbours.net project. The hairs on this are very painful and can cause a stinging sensation for hours.

Thomas Marent / Puss Moth (Cerura vinula) caterpillar, Switzerland