Description published
Dufour & Perris, Annales de la Société Entomologique de France, 9: 10.
Location of type
Type material: Syntypes m(m), f(f), [France]. Type species of Tridentosmia Schmiedeknecht.-Combination Hoplitis (Tridentosmia) tridentata (Dufour & Perris) in Zanden (1980: 233). Combination Osmia (Alcidamea) tridentata Dufour & Perrisin Warncke (1991h: 718).