Currently in Paraliburnia Jensen-Haarup 1917 (e.g. http://www.faunaeur.org/full_results.php?id=152613)
Liburnia clypealis Sahlberg, 1871: 454.
Delphax clypealis (Sahlberg, 1871); comb. by Puton, 1875: 120.
Delphacodes clypealis (Sahlberg, 1871); comb. by Metcalf 1943: 417
It was in Paraliburnia in Wagner 1963: 175- but I am not positive this is where it was transferred to Paraliburnia (It was still in Delphacodes in Le Quesne 1960)