Stegana (Oxyphortica) enigma Sidorenko 1998

Sidorenko 1998. New Asian species and new records of the genus Stegana Meigen (Diptera: Drosophilidae). 3. Descriptions, taxonomic remarks and key to the Asian species. Annales de la Societe Entomologique de France, 34(3), Septembre 1998: 285-300