Description published
Morawitz, Horae Societatis Entomologicae Rossicae (St. Petersburg), 10: 152.
Location of type
Type material: Lectotype m, by designation of Zanden (1981: 154), “Derbent” [Russia], ZIN (St. Petersburg).-Combination Osmia (Chalcosmia) nana Morawitz in Friese (1911b: 111). Combination Osmia (Diceratosmia) nana Morawitz in Zanden (1981: 153). Combination Osmia (Caerulosmia) nana Morawitz in Zanden (1988b: 123).