Neptis serena

{{Short description|Species of butterfly}}

{{Speciesbox

| image = River sailer (Neptis serena serena).jpg

| image_caption = Neptis serena serena, Gambia

| genus = Neptis

| species = serena

| authority = Overlaet, 1955[http://www.nic.funet.fi/pub/sci/bio/life/insecta/lepidoptera/ditrysia/papilionoidea/nymphalidae/limenitidinae/neptis/index.html Neptis] {{Webarchive|url=https://web.archive.org/web/20120417064954/http://www.nic.funet.fi/pub/sci/bio/life/insecta/lepidoptera/ditrysia/papilionoidea/nymphalidae/limenitidinae/neptis/index.html |date=2012-04-17 }} at Markku Savela's Lepidoptera and Some Other Life Forms

| synonyms =

• Neptis agatha ab. lativittata Strand, 1909
• Neptis agatha ab. latvitta Strand; d'Abrera, 1980

}}

Neptis serena, the serene sailer or river sailer, is a butterfly in the family Nymphalidae. It is found in Senegal, Gambia, Guinea-Bissau, Guinea, Sierra Leone, Ghana, Togo, Nigeria, Cameroon, the Republic of the Congo, the Democratic Republic of the Congo, Ethiopia, Tanzania, Zambia, northern Botswana, Zimbabwe, Mozambique, South Africa and Yemen.{{Cite web |url=http://atbutterflies.com/downloads/nymphalidae_limenitidini.doc |title=Afrotropical Butterflies: Nymphalidae - Tribe Limenitidini |access-date=2012-06-18 |archive-date=2013-11-05 |archive-url=https://web.archive.org/web/20131105175311/http://atbutterflies.com/downloads/nymphalidae_limenitidini.doc |url-status=live }} The habitat consists of open, grassy banks of streams and rivers in forests, heavy woodland, coastal bush and savanna.

Adult males mud-puddle. Adults are on wing from April to January.

The larvae feed on Cycina species.