Moths of the Amazon and Andes
Pluto Sphinx
Madoryx plutonius  HÜBNER, 1822
Superfamily - BOMBYCOIDEA
Tribe -

Madoryx plutonius, Rio Madre de Dios, 400m, Peru © Adrian Hoskins
There are 4 species in the genus Madoryx, distributed variously from Florida to Bolivia. The genus is closely allied to Hemeroplanes and Callionima. The 3 genera are characterised by the presence of a keel at the tip of the abdomen. All species in these genera also have a silver mark in the discal cell of the forewings. In Madoryx this is triangular, whereas in Hemeroplanes it forms a long streak, and in Callionima it is shaped like a tobacco pipe.
Madoryx plutonius is found from Mexico to Bolivia and southern Brazil.
This species occurs in primary and secondary rainforest at altitudes between sea level and about 1200m.
The caterpillar is similar in appearance to that of a Geometrid, with reduced prolegs and enlarged flattened anal claspers. When young it has a long thin horn at the tail end, which reduces to a stubby cone by the final instar. It rest with it's body arched.
The pupa is deep glossy brown and has orange markings on the abdomen.
Adult behaviour

The disruptive pattern of the wings enables the moth to blend perfectly amongst the twigs and leaf litter where it rests during daylight hours. It flies from dusk to midnight or thereabouts, and comes readily to tungsten, fluorescent or mercury vapour lighting.



Contact  /  About me

Butterfly-watching holidays

Trip reports

UK latest sightings

Frequently asked questions

Strange but true !

Taxonomy & Evolution



Enemies of butterflies

Survival strategies

Migration & dispersal

Habitats - UK / Palaearctic

Habitats - Tropical rainforests

Butterfly world census

Butterflies of the World :

British Isles


Amazon & Andes

North America

temperate Asia


Indian subcontinent

Malaysia & Borneo

Papua New Guinea

Australia & N.Z.

Insects of Britain & Europe

Insects of Amazonia

Moths of the Andes

Saturniidae - Silkmoths

Caterpillars of the World

Butterfly Photography

Recommended Books



Code of practice

Copyright - text & images

Copyright - text & images






All photographs, artwork, text & website design are the property of Adrian Hoskins ( unless otherwise stated ) and are protected by Copyright. Photographs or text on this website must not be reproduced in part or in whole or published elsewhere without prior written consent of Adrian Hoskins / learnaboutbutterflies.com

Site hosted by Just Host