The Bates Olivewing 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 eastern Venezuela

Venezuela

Venezuela , officially called the Bolivarian Republic of Venezuela , is a tropical country on the northern coast of South America. It borders Colombia to the west, Guyana to the east, and Brazil to the south...

, the Guianas and the lower Amazon

Amazon River

The Amazon of South America is the second longest river in the world and by far the largest by waterflow with an average discharge greater than the next seven largest rivers combined...

 in 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...

.

The length of the wings is 29-36 mm for males and 32-40 mm for females. The upperside of adult males is dark brown, with bright sky blue diagonal bands on the forewings and orange patches on the hindwings. The females have plain brown hindwings, blue diagonal bands across the forewings, and elongated reddish spots within the discal cell of the forewings.

Subspecies

• Nessaea batesii batesii (Brazil (Pará))
• Nessaea batesii magniplaga Röber, 1928 (Surinam)