The Uncertain Owlet or Bia Owl or Actorion Owlet (Bia actorion) is a species of butterfly

Butterfly

A butterfly is a mainly day-flying insect of the order Lepidoptera, which includes the butterflies and moths. Like other holometabolous insects, the butterfly's life cycle consists of four parts: egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured...

 of the Nymphalidae

Nymphalidae

The Nymphalidae is a family of about 5,000 species of butterflies which are distributed throughout most of the world. These are usually medium sized to large butterflies. Most species have a reduced pair of forelegs and many hold their colourful wings flat when resting. They are also called...

 family. It is found in the upper Amazon

Amazon Basin

The Amazon Basin is the part of South America drained by the Amazon River and its tributaries that drains an area of about , or roughly 40 percent of South America. The basin is located in the countries of Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, and Venezuela...

 areas of Brazil

Brazil

Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

, Ecuador

Ecuador

Ecuador , officially the Republic of Ecuador is a representative democratic republic in South America, bordered by Colombia on the north, Peru on the east and south, and by the Pacific Ocean to the west. It is one of only two countries in South America, along with Chile, that do not have a border...

, Peru

Peru

Peru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....

 and Bolivia

Bolivia

Bolivia officially known as Plurinational State of Bolivia , is a landlocked country in central South America. It is the poorest country in South America...

.

The larvae feed on Astrocaryum murumuru

Astrocaryum murumuru

Astrocaryum murumuru is a palm native to Amazon Rainforest vegetation in Brazil, which bears edible fruits. Murumuru butter, extracted from the seeds of the plant, may be used as a moisturizer.-External links:...

and Geonoma

Geonoma

Geonoma is a genus of small to medium-sized palms native to the forest understorey of tropical Central and South America.This palm genus is one of the largest in the Neotropics...

species.

Taxonomy

Bia actorion has long been placed in the subfamily Satyrinae

Satyrinae

Satyrinae, the satyrines or satyrids, commonly known as the Browns, is a subfamily of the Nymphalidae . They were formerly considered a distinct family, Satyridae. This group contains nearly half of the known diversity of brush-footed butterflies...

, but studies determined that it belonged to the Brassolinae. Currently, the genus Bia

Bia (butterfly)

Bia is a genus of butterflies, named by Hübner in 1819. They are in the brush-footed butterfly family, Nymphalidae.-Species:Arranged alphabetically.*Bia actorion *Bia peruana Röber, 1904...

are classified as members of the subtribe Biina in the tribe Brassolini

Brassolini

Brassolini is a tribe usually placed in the brush-footed butterfly subfamily Morphinae, which is often included in the Satyrinae as a tribe Morphini. If this is accepted, the Brassolini become the sister tribe of the Morphini among the Satyrinae. Formerly, they were treated as an independent family...

.

Subspecies

• Bia actorion actorion
• Bia actorion decaerulea Weymer, 1911 (Brazil (Amazonas))
• Bia actorion rebeli Bryk, 1953 (Peru, Ecuador)