Hadronotus longus (Kozlov & Le) comb. nov.

Gryon longum Kozlov & Lê, 1992: 228, 236 (original description, assigned to Gryon muscaeforme species group, keyed).

Gryon longus Kozlov & Lê, 1996: 11 (description); Lê, 2000: 98, 121 (description, keyed, type information).