Melittosesia is a genus of moths in the family Sesiidae from Madagascar.
This is a monotypic genus that only contains the species Melittosesia flavitarsa <small> Bartsch, 2009</small> that was found in eastern Madagascar near Moramanga and Andasibe in mountainous primary forests. This species has a wingspan of 24âÂÂ29 mm and a body length of 13âÂÂ16 mm.