Hadronotus chromion (Kozlov & Le) comb. nov.

Gryon chromion Kozlov & Lê, 1992: 232, 237 (original description, assigned to Gryon muscaeforme species group, keyed).

Gryon cromion Kozlov & Lê, 1996: 12 (description, misspelling); Lê, 2000: 100, 112 (description, keyed, type information).