Consularis is a Latin word, derived from Consul. For modern, semi-diplomatic or colonial consuls, see Consul (representative). ...

Originally it was simple and adjective meaning "consular", but more interestingly it has also become a substantive, used in technical meanings.

-Any former Consul. This is worth mentioning, for it is a traditional qualification (in many case, prerequisite) for various appointments.

-During the Dominate, Consularis was specifically used as one of the more frequently used titles for the Roman governor (the generic term was Rector provinciae) of an 'eparchy' (province). According to the Notitia dignitatum (circa 400AD), the following provinces were administered by one, in the following dioceses: A Roman governor was an official either elected or appointed to be the chief adminstator of Roman law throughout one or more of Ancient Romes many provinces. ... The Notitia Dignitatum is a unique document of the Roman imperial chanceries. ...

• in the eastern empire were 15 Consulares :
  • five in the diocese Oriens: Palaestina, Foenicia, Syria, Cilicia and Cyprus
  • three in the diocese Asiana: Pamfylia, Hellespontus and Lydia
  • two in the Pontic diocese: Galatia and Bithynia
  • two in Thraciae: Europa and Thracia
  • three in Illyricum: Creta, Macedonia and Dacia mediterranea;
  • while Egypt is explictely said to have none.
• twenty one in the western empire:
  • one in Pannonia, itself called Pannonia
  • eight in Italiae: Venetia et Histria, Aemilia, Liguria, Flaminia et Picenum annonarium, Tuscia et Umbria, Picenum suburbicarium, Campania and Sicilia
  • two in Africa: Byzacium and Numidi.
  • three in Hispaniae: Baetica, Lusitania, Callaecia
  • six in Galliae: Viennensis, Lugdunensis prima, Germania prima, Germania secunda, Belgica prima and Belgica secunda
  • two in Britanniae: Maxima Caesariensis and Valentia.

Sources and References

• Notitia dignitatum
• Pauly-Wissowa