Dichecephala nasalis (Karsch, 1882) comb. nov.

Apogonia nasalis Karsch, 1882: 123; Ritsema, 1891: 95 (catalogue); Ritsema, 1904b: 115 (catalogue)

Apogonia (Catagonia) nasalis: Kolbe, 1899a: 41, 42, 57; Frey, 1974: 118

Apogonia (Metagonia) nasalis: Dalla Torre, 1912: 140 (catalogue)

Type locality: "Hedebat, Dar Sennaar".

Distribution: Sudan (Karsch, 1882).

Remark: D. nasalis is the type species of the subgenus Catagonia . This subgenus was subsequently upgraded to the genus rank and synonymized with Dichecephala by Moser (1918). The new combination established here is in accordance with Moser’s (1918) and Burgeon’s (1945) generic concepts of African Diplotaxini .