Hadronotus cultratus (Masner) comb. nov.
Gryon cultratus Masner, 1979: 794, 799 (original description, keyed); Sarazin, 1986: 974 (type information).
Gryon cultratum Masner: Johnson, 1992: 381 (cataloged, type information).
Comments.
This species is transferred to Hadronotus based on its placement in the Gryon variicorne group and characters presented in the original description: "head... with coarse transverse polygons", "scutellum with polygons roughly rounded" and examination of a paratype specimen.