This name is a synonym of Dactylorhiza insularis (Sommier) Ó.Sánchez & Herrero.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 342584) with original publication details: Prodr. Fl. Corse 1: 371 1910.
This name was in version 1 of The Plant List, record kew-342584, and has not been changed.