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

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

Chris Mattison / Puss moth, ( Cerura vinula) late stage caterpillar, on Sallow. Wales, UK.

Chris Mattison / Puss moth, ( Cerura vinula) fourth instar caterpillar, Wales, UK.

Chris Mattison / Puss moth, ( Cerura vinula) third instar caterpillar, on Sallow. Wales, UK.

Chris Mattison / Puss moth, ( Cerura vinula) first instar caterpillar, on Sallow. Wales, UK.

Jussi Murtosaari / Puss moth (Cerura vinula) caterpillar, two on leaf, empty egg shells in background. Multia, Central Finland. June.

Andy Sands / Puss moth (Cerura vinula) caterpillar on Sallow in defence posture, Hertfordshire, England, UK, May - Captive - Focus Stacked

Andy Sands / Puss moth (Cerura vinula) female emiting pheromone to attract mate, Hertfordshire, England, UK, May - Captive - Focus Stacked

Nick Hawkins / Flannel moth caterpillar (Megalopyge sp.) in Choco region, Northwestern Ecuador.

Barry Mansell / Southern flannel moth caterpillar (Megalopyge opercularis) North Florida, USA, October.

Barry Mansell / Puss Moth Caterpillar (Megalopyge opercularis) North Florida, USA, October. Controlled conditions.

Barry Mansell / Puss moth caterpillar (Megalopyge opercularis) North Florida, USA, October.

Robert Thompson / Puss moth (Cerura vinula) near Lough Bunny, County Clare, Ireland. April. Small repro only.

Robert Thompson / Puss moth (Cerura vinula) camouflaged on small Hawthorn tree (Crataegus monogyna) Burren National Park, County Clare, Ireland, April.

Robert Thompson / Puss moth (Cerura vinula) on mossy branch, Clare Glen, Co. Armagh, Northern Ireland.

Paul Harcourt Davies / Puss moth (Cerura vinula) resting on bark at Podere Montecucco, Orvieto, Italy June.

Paul Harcourt Davies / Puss moth (Cerura vinula) resting on bark at Podere Montecucco, Orvieto, Italy June.

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

Adrian Davies / Puss moth (Cerura vinula) larva feeding on Sallow, Surrey, England, UK, July.

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

Jussi Murtosaari / Lesser puss moth (Cerura erminea) female on tree trunk, Hamina, Kymenlaakso, Etela-Suomi / South Finland, Finland. June

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.

Alex Hyde / Puss Moth (Cerura vinula) cocoon, constructed on tree bark. Derbyshire, UK, August.

Alex Hyde / Puss Moth (Cerura vinula), Derbyshire, UK. May.

Alex Hyde / Puss Moth (Cerura vinula), showing antennae, Derbyshire, UK. May

Alex Hyde / Puss Moth (Cerura vinula), photographed on a white background in mobile field studio. 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.

Andy Sands / Puss Moth (Cerura vinula) caterpillar larva feeding on Sallow / Willow leaf, UK, July

Andy Sands / Puss Moth (Cerura vinula) pupa on Sallow twig, UK, August

Andy Sands / Puss Moth (Cerura vinula) caterpillar larva in defence posture showing posterior flagella, defensive whips, UK, July

Andy Sands / Puss Moth (Cerura vinula) caterpillar larva feeding on Sallow / Willow leaf, UK, July

Andy Sands / Puss Moth (Cerura vinula) caterpillar larva feeding on Sallow / Willow leaf, UK, July

Andy Sands / Puss Moth (Cerura vinula) caterpillar larva feeding on Sallow / Willow leaf, UK, July

Simon Colmer / Puss Moth (Cerula vinula) caterpillar larva on willow, Europe

Simon Colmer / Puss Moth (Cerula vinula) caterpillar larva hanging upside-down on willow, Europe

Simon Colmer / Puss Moth (Cerula vinula) caterpillar larva on willow, Europe

Simon Colmer / Puss Moth (Cerula vinula) caterpillar larva on willow, Europe

Simon Colmer / Puss Moth (Cerula vinula) linear life cycle showing egg, larva / caterpillar, pupa / chrysalis and adult moth. Digital composite.

Simon Colmer / Puss Moth (Cerula vinula) circular life cycle showing egg, larva / caterpillar, pupa / chrysalis and adult moth. Digital composite.

Simon Colmer / Puss Moth (Cerura vinula) on tree bark, UK

Simon Colmer / Puss Moth (Cerura vinula) pupa on tree bark, UK

Simon Colmer / Two Puss Moth (Cerula vinula) eggs on leaf, UK

Jason Smalley / Puss Moth caterpillar {Cerura vinula} against white background, UK.