Hadronotus niger (Dodd) comb. nov.

Plastogryon niger Dodd, 1914f: 257 (original description).

Plastogryon niger Gryon niger Dodd: Dodd, 1915: 25 (keyed).

Plastogryon niger rubrifemur Dodd, 1915: 25, 26 (original description, keyed); Johnson, 1992: 391 (type information).

Plastogryon (Heterogryon) niger Dodd: Kieffer, 1926: 447, 450 (description, subgeneric assignment, keyed).

Gryon niger (Dodd): Galloway, 1976: 92 (type information, generic transfer); Masner, 1976: 58 (generic transfer).

Gryon niger rubrifemur (Dodd): Galloway, 1976: 92 (type information, generic transfer).

Gryon nigrum (Dodd): Mineo, 1990b: 54 (distribution); Johnson, 1992: 391 (cataloged, type information).