Syneilesis and Nymphoides are both what?
Syneilesis Syneilesis is a genus of East Asian plants in the groundsel tribe within the Asteraceae.
Syrphipogon Syrphipogon is a genus of hoverflies. There are two known species. They are very large microdontine flies of about 25 mm. They have a deeply sulcate scutellum and a facial mystax. They are mimics of the large bees of the genus "Eulaema".