Sarangesa seineri

{{Short description|Species of butterfly}}

{{Speciesbox

| name = Dusted elfin

| image = Dark Elfin (Sarangesa seineri) (16232734454).jpg

| image_caption =

| taxon = Sarangesa seineri

| authority = Strand, 1909[http://www.nic.funet.fi/pub/sci/bio/life/insecta/lepidoptera/ditrysia/hesperioidea/hesperiidae/pyrginae/sarangesa/index.html Sarangesa] at Markku Savela's Lepidoptera and Some Other Life Forms

| synonyms =

• Sarangesa seineri tanga Evans, 1937

}}

Sarangesa seineri, also known as the dusted elfin or dark elfin, is a species of butterfly in the family Hesperiidae. It is found in South Africa (Natal, Transvaal), Botswana and from Zimbabwe to Kenya and the DRC.

The wingspan is 36–38 mm for males and 38–40 mm for females. Adults are on wing year-round, although they are scarcer in winter and the dry season.{{cite book|last=Woodhall |first=Steve |title=Field Guide to Butterflies of South Africa |year=2005 |location=Cape Town, South Africa |publisher=Struik |isbn=978-1-86872-724-7 }}

The larvae feed on Peristrophe hensii.