Orange Acraea is a name applied to two butterflies of tropical Africa and adjacent Arabia:

• Acraea alalonga (Long-winged Orange Acraea), restricted to northeastern South Africa
• Acraea anacreon (Large Orange Acraea), found in eastern and southern Africa
• Acraea eponina
  Acraea eponina
  The Orange Acraea , also called Small Orange Acraea to distinguish it from the larger A. anacreon, is a butterfly of the Nymphalidae family. It is found in tropical Africa and south-western Arabia....
  
  (Small Orange Acraea), widespread in tropical Africa and adjacent areas

Despite conventionally placed in the genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 Acraea

Acraea (genus)

Acraea is a genus of brush-footed butterflies of the subfamily Heliconiinae. It seems to be highly paraphyletic and has long been used as a "wastebin taxon" to unite about 220 species of anatomically conservative Acraeini...

, they do not seem to be particularly close relatives and eventually are likely to be assigned to at least two different genera. Some authors place A. anacreon in Telchinia, but if anything the older name Auracraea might be more correct. Whether the other two will remain in Acraea is not clear either.