Hadronotus sinop (Masner) comb. nov.
Gryon sinop Masner, 1979: 793, 802 (original description, keyed); Sarazin, 1986: 978 (type information); Johnson, 1992: 396 (cataloged, type information).
Comments.
We transfer this species based on placement in Gryon variicorne group and original description: "frontal depression shallow but unusually well indicated by lateral and dorsal keels as well as sculpture consisting of several large transverse polygons above antennal insertion …”