Hadronotus samoensis (Mineo) comb. nov.
Gryon samoense Mineo, 1991: 8 (original description, assigned to Gryon charon species group).
Comments.
This species is transferred to Hadronotus based on the original description and assignment to the Gryon charon group: "...the frontal depression are finely scabrous; this latter is transversely crossed by undulating wrinkles."