Ennea H. Adams & A. Adams, 1855: 171.
Ennea — Zilch, 1960: 577.
Ennea — Richardson, 1988: 19.
Ennea — Schileyko, 2000: 798.
Type species. Pupa elegantula L. Pfeiffer, 1847 (Fig. 20), by subsequent designation (Martens, 1860: 302).
Remarks. Ennea is characterised by deeply situated long parietal plicae, which are absent in the genus Sinoennea. Although the southern Indian Rowsonia, new genus, has similar plicae, the close relationship between African Ennea and Rowsonia is unlikely due to biogeographical reasons (see also under Rowsonia, new genus).