Wolfgang Adaschkiewitz notified me that L. spuria and L. vitripennis are again two different species:
Hellqvist, S. 2021. Lispocephala vitripennis Ringdahl, 1951 is a species distinct from L. spuria (Zetterstedt, 1838) (Diptera: Muscidae). Entomologisk Tidskrift 142, 227-231.