Butterflies of the Amazon and Andes
Barred Short-tail Skipper
Polythrix gyges  EVANS, 1952
subfamily - PYRGINAE
Polythrix gyges, Satipo, Peru Dave Griffiths
The Pyrginae, popularly known as Flats or Spreadwings, are a cosmopolitan subfamily distributed across temperate and tropical habitats throughout the world. In the Americas there are 990 species.
The tribe Eudamini includes 44 genera in the Americas, amongst which are the Long-tailed Skippers Urbanus, Chioides and Aguna; and other familiar genera including Phocides, Autochton, Astraptes Pellicia and Polythrix.
There are several different genera of 'tailed' skippers occurring in the neotropical region including Urbanus, Aguna, Polythrix and Typhedanus. They can be distinguished from each other by the wing venation and by the configuration of the hyaline spots on the forewings. Additionally, in Urbanus the outer margin of the forewing is convex, but in the others it is concave to a greater or lesser degree.
There are 14 known Polythrix species. The butterflies are characterised by having a series of small hyaline ( transparent ) windows in the forewing, which follow the same general layout as in gyges. The wing fringes of Polythrix species are white, whereas in the other tailed genera they are either chequered or pale brown. The tails of Polythrix tend to be stubbier than in the other genera.
The distribution of this genus is centred on Amazonia but some species including octomaculata have a very wide distribution covering much of the neotropical region from Mexico to northern Argentina.
Polythrix gyges is endemic to Peru.
The butterfly occurs in rainforest and cloudforest at elevations between about 300-1400m.
To be completed.
Adult behaviour

The males spend much of their time hiding under leaves, with wings spread, but will sometimes join aggregations of other Pyrgine skippers at damp sand or earth, at which time they always rest with wings outspread. They also feed at bird droppings and can be attracted with pieces of moistened white tissue placed on the surface of leaves within the forest.



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